/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:15:23,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:15:23,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:15:23,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:15:23,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:15:23,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:15:23,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:15:23,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:15:23,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:15:23,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:15:23,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:15:23,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:15:23,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:15:23,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:15:23,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:15:23,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:15:23,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:15:23,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:15:23,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:15:23,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:15:23,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:15:23,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:15:23,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:15:23,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:15:23,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:15:23,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:15:23,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:15:23,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:15:23,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:15:23,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:15:23,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:15:23,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:15:23,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:15:23,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:15:23,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:15:23,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:15:23,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:15:23,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:15:23,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:15:23,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:15:23,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:15:23,829 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:15:23,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:15:23,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:15:23,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:15:23,845 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:15:23,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:15:23,845 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:15:23,845 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:15:23,846 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:15:23,846 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:15:23,846 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:15:23,846 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:15:23,846 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:15:23,846 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:15:23,847 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:15:23,847 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:23,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:15:23,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:15:23,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:15:23,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:15:23,848 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:15:23,848 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:15:23,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:15:23,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:15:23,848 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:15:23,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:15:23,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:15:23,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:15:23,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:15:23,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:15:24,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:15:24,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:15:24,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:15:24,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:15:24,033 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:15:24,033 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:15:24,136 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_x_xktx/tmp/c709a1468cd44c95a538e0675f46e61f/FLAGaeabb60b5 [2020-07-01 13:15:24,464 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:15:24,465 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:15:24,472 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_x_xktx/tmp/c709a1468cd44c95a538e0675f46e61f/FLAGaeabb60b5 [2020-07-01 13:15:24,891 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_x_xktx/tmp/c709a1468cd44c95a538e0675f46e61f [2020-07-01 13:15:24,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:15:24,904 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:15:24,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:15:24,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:15:24,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:15:24,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:15:24" (1/1) ... [2020-07-01 13:15:24,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eba64c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:24, skipping insertion in model container [2020-07-01 13:15:24,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:15:24" (1/1) ... [2020-07-01 13:15:24,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:15:24,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:15:25,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:15:25,165 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:15:25,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:15:25,195 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:15:25,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25 WrapperNode [2020-07-01 13:15:25,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:15:25,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:15:25,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:15:25,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:15:25,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:15:25,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:15:25,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:15:25,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:15:25,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:15:25,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:15:25,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:15:25,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:15:25,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (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 [2020-07-01 13:15:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:15:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:15:25,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:15:25,486 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:15:25,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:25 BoogieIcfgContainer [2020-07-01 13:15:25,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:15:25,490 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:15:25,490 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:15:25,492 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:15:25,493 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:25" (1/1) ... [2020-07-01 13:15:25,505 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 13:15:25,506 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:15:25,507 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:15:25,508 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:15:25,508 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:15:25,510 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:15:25,510 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:15:25,511 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:15:25,524 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:15:25,531 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 13:15:25,536 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:15:25,538 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:15:25,559 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 13:15:25,561 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 13:15:25,563 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:15:25,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:15:25,563 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:15:25,564 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:15:25,564 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 13:15:25,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:15:25 BasicIcfg [2020-07-01 13:15:25,564 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:15:25,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:15:25,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:15:25,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:15:25,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:15:24" (1/4) ... [2020-07-01 13:15:25,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b0070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (2/4) ... [2020-07-01 13:15:25,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b0070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:25" (3/4) ... [2020-07-01 13:15:25,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698b0070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:15:25" (4/4) ... [2020-07-01 13:15:25,573 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:15:25,584 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:15:25,591 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:15:25,605 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:15:25,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:15:25,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:15:25,629 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:15:25,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:15:25,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:15:25,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:15:25,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:15:25,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:15:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 13:15:25,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:15:25,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 13:15:25,703 INFO L271 CegarLoopResult]: At program point L19-2(lines 17 22) the Hoare annotation is: true [2020-07-01 13:15:25,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:15:25,704 INFO L268 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-07-01 13:15:25,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:15:25 BasicIcfg [2020-07-01 13:15:25,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:15:25,713 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:15:25,713 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:15:25,716 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:15:25,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:15:25,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:15:24" (1/5) ... [2020-07-01 13:15:25,718 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b1f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,718 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:15:25,718 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:15:25" (2/5) ... [2020-07-01 13:15:25,719 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b1f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:15:25,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:25" (3/5) ... [2020-07-01 13:15:25,719 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b1f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:15:25,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:15:25" (4/5) ... [2020-07-01 13:15:25,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b1f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:15:25, skipping insertion in model container [2020-07-01 13:15:25,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:15:25,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:15:25" (5/5) ... [2020-07-01 13:15:25,722 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:15:25,751 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:15:25,751 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:15:25,752 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:15:25,752 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:15:25,752 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:15:25,752 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:15:25,752 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:15:25,752 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:15:25,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:15:25,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:15:25,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:15:25,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:15:25,778 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:15:25,778 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:15:25,779 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:15:25,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:15:25,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:15:25,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:15:25,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:15:25,780 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:15:25,780 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:15:25,785 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 13:15:25,785 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_6)) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L19true [34] L19-->L19-2: Formula: (> 0 v_ULTIMATE.start_main_~y~0_9) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} AuxVars[] AssignedVars[] 4#L19-2true [2020-07-01 13:15:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:25,792 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-07-01 13:15:25,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:25,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190473494] [2020-07-01 13:15:25,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:25,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times [2020-07-01 13:15:25,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:25,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375502640] [2020-07-01 13:15:25,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,888 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times [2020-07-01 13:15:25,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:25,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95917189] [2020-07-01 13:15:25,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:25,901 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:25,944 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:25,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:25,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:25,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:25,945 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:15:25,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:25,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:25,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:25,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:15:25,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:25,946 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:25,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:25,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:25,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:26,075 INFO L404 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 [2020-07-01 13:15:26,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:26,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:26,110 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:26,110 INFO L440 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 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 [2020-07-01 13:15:26,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:26,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:26,149 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:26,149 INFO L440 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 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 [2020-07-01 13:15:26,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:26,182 INFO L160 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 [2020-07-01 13:15:26,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:15:26,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:26,361 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:15:26,364 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:26,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:26,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:26,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:26,365 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:15:26,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:26,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:26,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:26,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:15:26,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:26,366 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:26,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,464 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:26,469 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:15:26,475 INFO L120 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 [2020-07-01 13:15:26,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:26,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:26,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:26,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:26,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:26,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:26,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:15:26,526 INFO L120 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 [2020-07-01 13:15:26,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:26,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:26,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:26,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:26,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:26,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:26,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:15:26,571 INFO L120 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 [2020-07-01 13:15:26,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:26,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:15:26,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:26,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:26,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:26,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:15:26,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:15:26,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:15:26,585 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:15:26,585 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 13:15:26,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:15:26,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:15:26,592 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:15:26,592 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 13:15:26,626 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:15:26,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:26,668 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:15:26,670 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:26,681 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 13:15:26,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:15:26,759 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:15:26,764 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 13:15:26,766 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:15:26,808 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 9 states and 14 transitions. Complement of second has 6 states. [2020-07-01 13:15:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:15:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:15:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 13:15:26,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:15:26,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:26,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:15:26,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:26,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:15:26,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:26,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 14 transitions. [2020-07-01 13:15:26,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:15:26,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 7 states and 10 transitions. [2020-07-01 13:15:26,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 13:15:26,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 13:15:26,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 13:15:26,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:15:26,828 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:15:26,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 13:15:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 13:15:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 13:15:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 13:15:26,856 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:15:26,856 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:15:26,857 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:15:26,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 13:15:26,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:15:26,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:15:26,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:15:26,858 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:15:26,858 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:15:26,859 INFO L794 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 50#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_6)) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 55#L19 [30] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 51#L19-2 [2020-07-01 13:15:26,859 INFO L796 eck$LassoCheckResult]: Loop: 51#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_6)) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 52#L19 [34] L19-->L19-2: Formula: (> 0 v_ULTIMATE.start_main_~y~0_9) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9} AuxVars[] AssignedVars[] 51#L19-2 [2020-07-01 13:15:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:26,859 INFO L82 PathProgramCache]: Analyzing trace with hash 54714, now seen corresponding path program 1 times [2020-07-01 13:15:26,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:26,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772452259] [2020-07-01 13:15:26,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times [2020-07-01 13:15:26,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:26,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805041508] [2020-07-01 13:15:26,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,879 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:26,880 INFO L82 PathProgramCache]: Analyzing trace with hash 52581056, now seen corresponding path program 1 times [2020-07-01 13:15:26,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:26,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446855984] [2020-07-01 13:15:26,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:26,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:26,907 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:26,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:26,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:26,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:26,908 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:15:26,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:26,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:26,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:26,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:15:26,909 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:26,909 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:26,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:26,982 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:26,982 INFO L404 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 [2020-07-01 13:15:26,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:26,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:26,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:26,997 INFO L440 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 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 [2020-07-01 13:15:27,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:27,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:27,034 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:27,034 INFO L440 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 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 [2020-07-01 13:15:27,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:27,080 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:15:27,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:27,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:15:27,280 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:27,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:27,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:27,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:27,280 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:15:27,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:27,281 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:27,281 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:15:27,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:27,281 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:27,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,341 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:27,341 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,345 INFO L120 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 [2020-07-01 13:15:27,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:27,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:27,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:27,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:27,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:27,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:27,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,396 INFO L120 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 [2020-07-01 13:15:27,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:27,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:27,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:27,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:27,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:27,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:27,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,439 INFO L120 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 [2020-07-01 13:15:27,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:27,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:15:27,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:27,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:27,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:27,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:15:27,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:15:27,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:15:27,451 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:15:27,451 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,458 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:15:27,458 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:15:27,459 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:15:27,459 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 13:15:27,490 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:15:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:27,517 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:15:27,517 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:27,525 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 13:15:27,526 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:15:27,567 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:15:27,568 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 13:15:27,568 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 13:15:27,599 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 24 transitions. Complement of second has 10 states. [2020-07-01 13:15:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:15:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:15:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 13:15:27,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:15:27,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:27,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 13:15:27,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:27,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 13:15:27,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:27,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2020-07-01 13:15:27,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:15:27,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 19 transitions. [2020-07-01 13:15:27,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 13:15:27,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 13:15:27,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2020-07-01 13:15:27,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:15:27,606 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-07-01 13:15:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2020-07-01 13:15:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2020-07-01 13:15:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 13:15:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 13:15:27,608 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 13:15:27,608 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 13:15:27,608 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:15:27,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 13:15:27,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:15:27,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:15:27,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:15:27,609 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:15:27,609 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:15:27,609 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 117#L19-2 [2020-07-01 13:15:27,610 INFO L796 eck$LassoCheckResult]: Loop: 117#L19-2 [28] L19-2-->L19: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_6)) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 119#L19 [30] L19-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 117#L19-2 [2020-07-01 13:15:27,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:27,610 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-07-01 13:15:27,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:27,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228713458] [2020-07-01 13:15:27,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:27,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 1 times [2020-07-01 13:15:27,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:27,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000705350] [2020-07-01 13:15:27,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,624 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:27,625 INFO L82 PathProgramCache]: Analyzing trace with hash 54714, now seen corresponding path program 2 times [2020-07-01 13:15:27,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:15:27,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34864818] [2020-07-01 13:15:27,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:15:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:15:27,634 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:15:27,656 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:27,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:27,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:27,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:27,657 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:15:27,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:27,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:27,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:15:27,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:27,657 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:27,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,737 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:27,737 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:27,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:27,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:27,746 INFO L440 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:27,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:27,785 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:15:27,786 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:15:27,820 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:15:27,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:15:27,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:15:27,897 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:15:27,899 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:15:27,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:15:27,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:15:27,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:15:27,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:15:27,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:15:27,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:15:27,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 13:15:27,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:15:27,900 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:15:27,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:15:27,971 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:15:27,971 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:27,976 INFO L120 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 [2020-07-01 13:15:27,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:27,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:27,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:27,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:27,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:27,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:27,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:28,018 INFO L120 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 [2020-07-01 13:15:28,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:28,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:28,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:28,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:28,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:15:28,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:15:28,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:28,059 INFO L120 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 [2020-07-01 13:15:28,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:15:28,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:15:28,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:15:28,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:15:28,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:15:28,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:15:28,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:15:28,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:15:28,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:15:28,071 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:15:28,075 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:15:28,075 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:15:28,075 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:15:28,075 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-07-01 13:15:28,105 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:15:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:15:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:28,122 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:15:28,123 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:15:28,127 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:15:28,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:15:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:15:28,128 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 13:15:28,128 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 [2020-07-01 13:15:28,128 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 13:15:28,139 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. [2020-07-01 13:15:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 13:15:28,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:15:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 13:15:28,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:15:28,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:28,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:15:28,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:28,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:15:28,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:15:28,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-07-01 13:15:28,143 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:15:28,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 13:15:28,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:15:28,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:15:28,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:15:28,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:15:28,144 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:15:28,144 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:15:28,144 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:15:28,144 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 13:15:28,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:15:28,144 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:15:28,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:15:28,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:15:28 BasicIcfg [2020-07-01 13:15:28,151 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:15:28,153 INFO L168 Benchmark]: Toolchain (without parser) took 3248.73 ms. Allocated memory was 514.9 MB in the beginning and 596.6 MB in the end (delta: 81.8 MB). Free memory was 436.3 MB in the beginning and 452.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 65.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,154 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 455.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:15:28,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.51 ms. Allocated memory was 514.9 MB in the beginning and 569.4 MB in the end (delta: 54.5 MB). Free memory was 435.8 MB in the beginning and 539.4 MB in the end (delta: -103.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.16 ms. Allocated memory is still 569.4 MB. Free memory was 539.4 MB in the beginning and 537.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,155 INFO L168 Benchmark]: Boogie Preprocessor took 19.69 ms. Allocated memory is still 569.4 MB. Free memory was 537.9 MB in the beginning and 536.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,156 INFO L168 Benchmark]: RCFGBuilder took 237.51 ms. Allocated memory is still 569.4 MB. Free memory was 536.4 MB in the beginning and 525.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,157 INFO L168 Benchmark]: BlockEncodingV2 took 74.50 ms. Allocated memory is still 569.4 MB. Free memory was 525.1 MB in the beginning and 520.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,157 INFO L168 Benchmark]: TraceAbstraction took 146.54 ms. Allocated memory is still 569.4 MB. Free memory was 519.8 MB in the beginning and 511.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,158 INFO L168 Benchmark]: BuchiAutomizer took 2437.99 ms. Allocated memory was 569.4 MB in the beginning and 596.6 MB in the end (delta: 27.3 MB). Free memory was 511.4 MB in the beginning and 452.6 MB in the end (delta: 58.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:15:28,161 INFO L336 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 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 455.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.51 ms. Allocated memory was 514.9 MB in the beginning and 569.4 MB in the end (delta: 54.5 MB). Free memory was 435.8 MB in the beginning and 539.4 MB in the end (delta: -103.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.16 ms. Allocated memory is still 569.4 MB. Free memory was 539.4 MB in the beginning and 537.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.69 ms. Allocated memory is still 569.4 MB. Free memory was 537.9 MB in the beginning and 536.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * RCFGBuilder took 237.51 ms. Allocated memory is still 569.4 MB. Free memory was 536.4 MB in the beginning and 525.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.50 ms. Allocated memory is still 569.4 MB. Free memory was 525.1 MB in the beginning and 520.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.54 ms. Allocated memory is still 569.4 MB. Free memory was 519.8 MB in the beginning and 511.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2437.99 ms. Allocated memory was 569.4 MB in the beginning and 596.6 MB in the end (delta: 27.3 MB). Free memory was 511.4 MB in the beginning and 452.6 MB in the end (delta: 58.9 MB). Peak memory consumption was 86.1 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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 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 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. 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, 8 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: 11 SDtfs, 20 SDslu, 4 SDs, 0 SdLazy, 36 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax183 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf109 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 13:15:21.608 ----------------------------------------------- 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/BenchExec_run_x_xktx/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:15:28.795 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check