/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:50:22,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:50:22,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:50:22,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:50:22,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:50:22,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:50:22,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:50:22,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:50:22,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:50:22,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:50:22,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:50:22,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:50:22,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:50:22,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:50:22,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:50:22,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:50:22,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:50:22,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:50:22,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:50:22,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:50:22,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:50:22,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:50:22,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:50:22,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:50:22,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:50:22,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:50:22,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:50:22,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:50:22,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:50:22,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:50:22,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:50:22,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:50:22,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:50:22,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:50:22,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:50:22,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:50:22,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:50:22,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:50:22,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:50:22,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:50:22,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:50:22,135 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:50:22,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:50:22,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:50:22,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:50:22,151 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:50:22,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:50:22,151 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:50:22,151 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:50:22,152 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:50:22,152 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:50:22,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:50:22,152 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:50:22,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:50:22,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:50:22,153 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:50:22,153 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:50:22,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:50:22,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:50:22,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:50:22,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:50:22,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:50:22,154 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:50:22,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:50:22,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:50:22,154 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:50:22,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:50:22,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:50:22,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:50:22,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:50:22,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:50:22,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:50:22,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:50:22,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:50:22,336 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:50:22,337 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:50:22,337 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:50:22,405 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_gK9FVE/tmp/e6c3c1792f464501aff72ed20b6fc4bd/FLAGec394a33b [2020-07-01 11:50:22,733 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:50:22,734 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:50:22,741 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_gK9FVE/tmp/e6c3c1792f464501aff72ed20b6fc4bd/FLAGec394a33b [2020-07-01 11:50:23,152 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_gK9FVE/tmp/e6c3c1792f464501aff72ed20b6fc4bd [2020-07-01 11:50:23,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:50:23,165 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:50:23,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:50:23,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:50:23,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:50:23,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740758f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:50:23,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:50:23,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:50:23,428 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:50:23,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:50:23,459 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:50:23,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23 WrapperNode [2020-07-01 11:50:23,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:50:23,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:50:23,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:50:23,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:50:23,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:50:23,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:50:23,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:50:23,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:50:23,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:50:23,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:50:23,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:50:23,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:50:23,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (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 11:50:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:50:23,739 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:50:23,739 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:50:23,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:50:23 BoogieIcfgContainer [2020-07-01 11:50:23,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:50:23,744 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:50:23,744 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:50:23,746 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:50:23,747 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:50:23" (1/1) ... [2020-07-01 11:50:23,759 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:50:23,761 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:50:23,762 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:50:23,762 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:50:23,763 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:50:23,764 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:50:23,765 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:50:23,765 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:50:23,779 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:50:23,786 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:50:23,792 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:50:23,794 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:50:23,809 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:50:23,811 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:50:23,812 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:50:23,812 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:50:23,812 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:50:23,813 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:50:23,813 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:50:23,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:50:23 BasicIcfg [2020-07-01 11:50:23,814 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:50:23,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:50:23,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:50:23,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:50:23,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:50:23" (1/4) ... [2020-07-01 11:50:23,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c63da19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (2/4) ... [2020-07-01 11:50:23,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c63da19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:50:23" (3/4) ... [2020-07-01 11:50:23,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c63da19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:50:23" (4/4) ... [2020-07-01 11:50:23,823 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:50:23,834 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:50:23,842 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:50:23,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:50:23,879 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:50:23,879 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:50:23,879 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:50:23,879 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:50:23,879 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:50:23,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:50:23,880 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:50:23,880 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:50:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:50:23,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:50:23,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:50:23,957 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 25) the Hoare annotation is: true [2020-07-01 11:50:23,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:50:23,958 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: true [2020-07-01 11:50:23,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:50:23 BasicIcfg [2020-07-01 11:50:23,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:50:23,968 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:50:23,968 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:50:23,971 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:50:23,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:50:23,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:50:23" (1/5) ... [2020-07-01 11:50:23,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7772c2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:50:23,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:50:23" (2/5) ... [2020-07-01 11:50:23,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7772c2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:50:23,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:50:23" (3/5) ... [2020-07-01 11:50:23,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7772c2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:50:23,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:50:23" (4/5) ... [2020-07-01 11:50:23,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7772c2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:50:23, skipping insertion in model container [2020-07-01 11:50:23,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:50:23,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:50:23" (5/5) ... [2020-07-01 11:50:23,978 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:50:24,006 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:50:24,006 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:50:24,007 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:50:24,007 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:50:24,007 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:50:24,007 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:50:24,007 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:50:24,007 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:50:24,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:50:24,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:50:24,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:50:24,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:50:24,033 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:50:24,034 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:50:24,034 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:50:24,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:50:24,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:50:24,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:50:24,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:50:24,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:50:24,035 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:50:24,040 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x1~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~x2~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x1~0=v_ULTIMATE.start_main_~x1~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x2~0=v_ULTIMATE.start_main_~x2~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~x1~0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x2~0, ULTIMATE.start_main_#res] 4#L19-2true [2020-07-01 11:50:24,041 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [36] L19-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x2~0_9 10) (<= v_ULTIMATE.start_main_~x1~0_9 10)) InVars {ULTIMATE.start_main_~x1~0=v_ULTIMATE.start_main_~x1~0_9} OutVars{ULTIMATE.start_main_~x1~0=v_ULTIMATE.start_main_~x1~0_9, ULTIMATE.start_main_~x2~0=v_ULTIMATE.start_main_~x2~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~x2~0] 5#L21-2true [45] L21-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~x1~0_11 (+ v_ULTIMATE.start_main_~x1~0_12 1)) (<= v_ULTIMATE.start_main_~x2~0_10 1)) InVars {ULTIMATE.start_main_~x1~0=v_ULTIMATE.start_main_~x1~0_12, ULTIMATE.start_main_~x2~0=v_ULTIMATE.start_main_~x2~0_10} OutVars{ULTIMATE.start_main_~x1~0=v_ULTIMATE.start_main_~x1~0_11, ULTIMATE.start_main_~x2~0=v_ULTIMATE.start_main_~x2~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~x1~0] 4#L19-2true [2020-07-01 11:50:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:50:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 11:50:24,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:50:24,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241880935] [2020-07-01 11:50:24,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:50:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:50:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:50:24,131 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:50:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:50:24,133 INFO L82 PathProgramCache]: Analyzing trace with hash 2122, now seen corresponding path program 1 times [2020-07-01 11:50:24,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:50:24,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447619875] [2020-07-01 11:50:24,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:50:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:50:24,184 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 11:50:24,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447619875] [2020-07-01 11:50:24,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:50:24,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 11:50:24,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102969268] [2020-07-01 11:50:24,192 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 11:50:24,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:50:24,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 11:50:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 11:50:24,209 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-07-01 11:50:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:50:24,226 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-07-01 11:50:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 11:50:24,229 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: unknown kind of automaton at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.toString(AutomatonDefinitionPrinter.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.TermcompProofBenchmark.reportFiniteModule(TermcompProofBenchmark.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:978) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 11:50:24,234 INFO L168 Benchmark]: Toolchain (without parser) took 1068.20 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 561.6 MB in the beginning and 599.1 MB in the end (delta: -37.5 MB). Peak memory consumption was 1.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,234 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:50:24,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 561.6 MB in the beginning and 652.8 MB in the end (delta: -91.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.79 ms. Allocated memory is still 688.9 MB. Free memory was 652.8 MB in the beginning and 650.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,236 INFO L168 Benchmark]: Boogie Preprocessor took 20.49 ms. Allocated memory is still 688.9 MB. Free memory was 650.5 MB in the beginning and 649.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,237 INFO L168 Benchmark]: RCFGBuilder took 227.05 ms. Allocated memory is still 688.9 MB. Free memory was 649.5 MB in the beginning and 634.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,238 INFO L168 Benchmark]: BlockEncodingV2 took 70.21 ms. Allocated memory is still 688.9 MB. Free memory was 633.7 MB in the beginning and 629.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,238 INFO L168 Benchmark]: TraceAbstraction took 151.31 ms. Allocated memory is still 688.9 MB. Free memory was 628.3 MB in the beginning and 619.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,240 INFO L168 Benchmark]: BuchiAutomizer took 263.28 ms. Allocated memory is still 688.9 MB. Free memory was 619.7 MB in the beginning and 599.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:50:24,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 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 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 649.6 MB in the beginning and 688.9 MB in the end (delta: 39.3 MB). Free memory was 561.6 MB in the beginning and 652.8 MB in the end (delta: -91.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.79 ms. Allocated memory is still 688.9 MB. Free memory was 652.8 MB in the beginning and 650.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.49 ms. Allocated memory is still 688.9 MB. Free memory was 650.5 MB in the beginning and 649.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 227.05 ms. Allocated memory is still 688.9 MB. Free memory was 649.5 MB in the beginning and 634.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.21 ms. Allocated memory is still 688.9 MB. Free memory was 633.7 MB in the beginning and 629.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.31 ms. Allocated memory is still 688.9 MB. Free memory was 628.3 MB in the beginning and 619.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 263.28 ms. Allocated memory is still 688.9 MB. Free memory was 619.7 MB in the beginning and 599.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: unknown kind of automaton de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: unknown kind of automaton: de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-07-01 11:50:19.916 ----------------------------------------------- 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_gK9FVE/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:50:24.479 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check