/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 12:59:22,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:59:22,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:59:22,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:59:22,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:59:22,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:59:22,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:59:22,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:59:22,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:59:22,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:59:22,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:59:22,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:59:22,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:59:22,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:59:22,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:59:22,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:59:22,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:59:22,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:59:22,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:59:22,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:59:22,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:59:22,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:59:22,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:59:22,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:59:22,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:59:22,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:59:22,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:59:22,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:59:22,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:59:22,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:59:22,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:59:22,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:59:22,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:59:22,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:59:22,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:59:22,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:59:22,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:59:22,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:59:22,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:59:22,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:59:22,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:59:22,138 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:59:22,152 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:59:22,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:59:22,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:59:22,153 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:59:22,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:59:22,154 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:59:22,154 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:59:22,154 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:59:22,154 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:59:22,155 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:22,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:59:22,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:59:22,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:59:22,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:59:22,156 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:59:22,156 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:59:22,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:59:22,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:59:22,157 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:59:22,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:59:22,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:59:22,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:59:22,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:59:22,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:59:22,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:59:22,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:59:22,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:59:22,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:59:22,342 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:59:22,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:59:22,411 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_VIfqEZ/tmp/8c4566ff5e7c4ab39b139abd07b64460/FLAG5f48c0880 [2020-07-01 12:59:22,739 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:59:22,740 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:59:22,935 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_VIfqEZ/tmp/8c4566ff5e7c4ab39b139abd07b64460/FLAG5f48c0880 [2020-07-01 12:59:23,150 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_VIfqEZ/tmp/8c4566ff5e7c4ab39b139abd07b64460 [2020-07-01 12:59:23,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:59:23,163 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:59:23,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:59:23,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:59:23,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:59:23,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b79609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:59:23,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:59:23,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:59:23,428 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:59:23,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:59:23,460 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:59:23,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23 WrapperNode [2020-07-01 12:59:23,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:59:23,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:59:23,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:59:23,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:59:23,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:59:23,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:59:23,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:59:23,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:59:23,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:59:23,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:59:23,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:59:23,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:59:23,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (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 12:59:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:59:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:59:23,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:59:23,748 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:59:23,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:23 BoogieIcfgContainer [2020-07-01 12:59:23,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:59:23,752 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:59:23,752 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:59:23,755 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:59:23,755 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:23" (1/1) ... [2020-07-01 12:59:23,768 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 12:59:23,770 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:59:23,770 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:59:23,771 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:59:23,771 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:59:23,773 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:59:23,774 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:59:23,774 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:59:23,788 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:59:23,801 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 12:59:23,805 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:59:23,807 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:59:23,816 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:59:23,818 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 12:59:23,819 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:59:23,820 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:59:23,820 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:59:23,820 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:59:23,820 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:59:23,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:23 BasicIcfg [2020-07-01 12:59:23,821 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:59:23,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:59:23,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:59:23,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:59:23,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:59:23" (1/4) ... [2020-07-01 12:59:23,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217755ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (2/4) ... [2020-07-01 12:59:23,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217755ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:23" (3/4) ... [2020-07-01 12:59:23,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217755ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:23" (4/4) ... [2020-07-01 12:59:23,829 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:59:23,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:59:23,847 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:59:23,861 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:59:23,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:59:23,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:59:23,884 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:59:23,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:59:23,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:59:23,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:59:23,884 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:59:23,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:59:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:59:23,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:59:23,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:59:23,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:59:23,958 INFO L268 CegarLoopResult]: For program point L10(lines 10 15) no Hoare annotation was computed. [2020-07-01 12:59:23,958 INFO L271 CegarLoopResult]: At program point L11-2(lines 11 14) the Hoare annotation is: true [2020-07-01 12:59:23,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:23 BasicIcfg [2020-07-01 12:59:23,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:59:23,967 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:59:23,968 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:59:23,971 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:59:23,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:23,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:59:23" (1/5) ... [2020-07-01 12:59:23,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1445294b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:23,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:59:23" (2/5) ... [2020-07-01 12:59:23,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1445294b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:23,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:59:23" (3/5) ... [2020-07-01 12:59:23,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1445294b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:23,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:59:23" (4/5) ... [2020-07-01 12:59:23,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1445294b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:23, skipping insertion in model container [2020-07-01 12:59:23,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:59:23,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:59:23" (5/5) ... [2020-07-01 12:59:23,977 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:59:24,005 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:59:24,005 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:59:24,006 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:59:24,009 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:59:24,009 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:59:24,009 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:59:24,009 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:59:24,009 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:59:24,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:59:24,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:59:24,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:24,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:24,037 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:59:24,037 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:59:24,037 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:59:24,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:59:24,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:59:24,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:24,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:24,038 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:59:24,039 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:59:24,044 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [26] ULTIMATE.startENTRY-->L10: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~i~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 3#L10true [36] L10-->L11-2: Formula: (< 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L11-2true [2020-07-01 12:59:24,044 INFO L796 eck$LassoCheckResult]: Loop: 5#L11-2true [31] L11-2-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (* v_ULTIMATE.start_main_~y~0_7 (- 1)))) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 5#L11-2true [2020-07-01 12:59:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1803, now seen corresponding path program 1 times [2020-07-01 12:59:24,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378511907] [2020-07-01 12:59:24,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,136 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,137 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-07-01 12:59:24,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392081438] [2020-07-01 12:59:24,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,155 INFO L82 PathProgramCache]: Analyzing trace with hash 55924, now seen corresponding path program 1 times [2020-07-01 12:59:24,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321586715] [2020-07-01 12:59:24,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,171 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,218 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:24,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:24,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:24,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:24,219 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:24,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:24,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:24,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:24,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:59:24,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:24,220 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:24,240 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 12:59:24,263 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 12:59:24,268 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 12:59:24,273 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 12:59:24,360 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:24,361 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 12:59:24,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:24,367 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:59:24,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:24,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:24,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:24,474 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:24,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:24,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:24,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:24,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:24,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:24,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:24,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:24,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:59:24,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:24,475 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:24,477 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 12:59:24,491 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 12:59:24,495 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 12:59:24,499 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 12:59:24,589 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:24,594 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:24,599 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 12:59:24,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:24,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:24,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:24,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:24,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:24,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:24,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:24,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:24,619 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:59:24,619 INFO L444 ModelExtractionUtils]: 2 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 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:24,628 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:24,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:24,629 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:24,630 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:59:24,664 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:24,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:24,700 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:24,701 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:24,714 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:59:24,714 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:24,715 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 12:59:24,727 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:59:24,732 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 12:59:24,734 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 2 states. [2020-07-01 12:59:24,761 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 2 states. Result 5 states and 6 transitions. Complement of second has 2 states. [2020-07-01 12:59:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:59:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:59:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 12:59:24,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:59:24,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:24,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:59:24,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:24,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:59:24,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:24,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. [2020-07-01 12:59:24,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:59:24,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 3 states and 3 transitions. [2020-07-01 12:59:24,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:59:24,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 12:59:24,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2020-07-01 12:59:24,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:59:24,780 INFO L688 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-07-01 12:59:24,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2020-07-01 12:59:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2020-07-01 12:59:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:59:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-07-01 12:59:24,808 INFO L711 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-07-01 12:59:24,808 INFO L591 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-07-01 12:59:24,808 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:59:24,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-07-01 12:59:24,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:59:24,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:59:24,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:59:24,809 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:59:24,810 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:59:24,810 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY [26] ULTIMATE.startENTRY-->L10: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~i~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 36#L10 [35] L10-->L11-2: Formula: (> 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 37#L11-2 [2020-07-01 12:59:24,810 INFO L796 eck$LassoCheckResult]: Loop: 37#L11-2 [31] L11-2-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (* v_ULTIMATE.start_main_~y~0_7 (- 1)))) (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 37#L11-2 [2020-07-01 12:59:24,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1802, now seen corresponding path program 1 times [2020-07-01 12:59:24,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083717673] [2020-07-01 12:59:24,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,819 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 2 times [2020-07-01 12:59:24,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750084914] [2020-07-01 12:59:24,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:59:24,828 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:59:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash 55893, now seen corresponding path program 1 times [2020-07-01 12:59:24,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:59:24,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121442690] [2020-07-01 12:59:24,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:59:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:24,866 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 12:59:24,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121442690] [2020-07-01 12:59:24,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:59:24,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:59:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001478287] [2020-07-01 12:59:24,890 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:24,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:24,890 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:24,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:24,891 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:59:24,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:24,891 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:24,891 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:24,891 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:59:24,891 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:24,891 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:24,893 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 12:59:24,896 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 12:59:24,899 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 12:59:24,906 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 12:59:24,961 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:24,962 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:24,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:24,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:24,972 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:59:24,973 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:25,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:25,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:59:25,011 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:25,068 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:59:25,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:25,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:25,121 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:59:25,121 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=4}, {ULTIMATE.start_main_~i~0=4}, {ULTIMATE.start_main_~i~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 12:59:25,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:59:25,155 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:59:25,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:59:25,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:59:25,263 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:59:25,266 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:59:25,266 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:59:25,266 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:59:25,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:59:25,266 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:59:25,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,267 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:59:25,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:59:25,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:59:25,267 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:59:25,267 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:59:25,269 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 12:59:25,274 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 12:59:25,281 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 12:59:25,291 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 12:59:25,369 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:59:25,369 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,374 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 12:59:25,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:25,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:25,386 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 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:59:25,418 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 12:59:25,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:59:25,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:59:25,430 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 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 12:59:25,464 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 12:59:25,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:25,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:25,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:25,471 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 12:59:25,505 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 12:59:25,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:59:25,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:59:25,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:59:25,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:59:25,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:59:25,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:59:25,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:59:25,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:59:25,521 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:59:25,521 INFO L444 ModelExtractionUtils]: 2 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 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 12:59:25,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:59:25,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:59:25,526 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:59:25,526 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:59:25,558 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:59:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:59:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:25,578 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:59:25,579 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:59:25,590 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:59:25,591 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:59:25,591 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 12:59:25,591 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:59:25,592 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 12:59:25,592 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1 Second operand 2 states. [2020-07-01 12:59:25,599 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states and 3 transitions. cyclomatic complexity: 1. Second operand 2 states. Result 4 states and 4 transitions. Complement of second has 2 states. [2020-07-01 12:59:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:59:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:59:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2020-07-01 12:59:25,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:59:25,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:25,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:59:25,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:25,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:59:25,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:59:25,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 4 transitions. [2020-07-01 12:59:25,603 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:59:25,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 0 states and 0 transitions. [2020-07-01 12:59:25,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:59:25,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:59:25,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:59:25,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:59:25,604 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:25,604 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:25,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:59:25,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:59:25,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:59:25,608 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-07-01 12:59:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:59:25,611 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 12:59:25,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 12:59:25,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 12:59:25,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:59:25,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 12:59:25,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:59:25,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:59:25,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:59:25,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:59:25,614 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:25,614 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:25,614 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:59:25,614 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:59:25,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:59:25,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:59:25,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:59:25,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:59:25 BasicIcfg [2020-07-01 12:59:25,621 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:59:25,624 INFO L168 Benchmark]: Toolchain (without parser) took 2460.31 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 455.9 MB in the end (delta: 105.8 MB). Peak memory consumption was 147.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,625 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:59:25,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.69 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.93 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 653.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,626 INFO L168 Benchmark]: Boogie Preprocessor took 19.59 ms. Allocated memory is still 691.0 MB. Free memory was 653.0 MB in the beginning and 651.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,627 INFO L168 Benchmark]: RCFGBuilder took 235.67 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 637.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,628 INFO L168 Benchmark]: BlockEncodingV2 took 68.91 ms. Allocated memory is still 691.0 MB. Free memory was 637.4 MB in the beginning and 632.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,628 INFO L168 Benchmark]: TraceAbstraction took 144.40 ms. Allocated memory is still 691.0 MB. Free memory was 632.0 MB in the beginning and 623.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,629 INFO L168 Benchmark]: BuchiAutomizer took 1654.22 ms. Allocated memory is still 691.0 MB. Free memory was 622.5 MB in the beginning and 455.9 MB in the end (delta: 166.6 MB). Peak memory consumption was 166.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:59:25,632 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 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.69 ms. Allocated memory was 649.6 MB in the beginning and 691.0 MB in the end (delta: 41.4 MB). Free memory was 561.7 MB in the beginning and 654.4 MB in the end (delta: -92.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.93 ms. Allocated memory is still 691.0 MB. Free memory was 654.4 MB in the beginning and 653.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.59 ms. Allocated memory is still 691.0 MB. Free memory was 653.0 MB in the beginning and 651.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 235.67 ms. Allocated memory is still 691.0 MB. Free memory was 651.7 MB in the beginning and 637.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.91 ms. Allocated memory is still 691.0 MB. Free memory was 637.4 MB in the beginning and 632.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.40 ms. Allocated memory is still 691.0 MB. Free memory was 632.0 MB in the beginning and 623.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1654.22 ms. Allocated memory is still 691.0 MB. Free memory was 622.5 MB in the beginning and 455.9 MB in the end (delta: 166.6 MB). Peak memory consumption was 166.6 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: 11]: 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 (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 2 locations. One nondeterministic module has affine ranking function x and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 3 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf93 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:59:19.927 ----------------------------------------------- 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_VIfqEZ/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:59:26.267 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check