/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:41:52,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:41:52,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:41:52,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:41:52,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:41:52,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:41:52,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:41:52,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:41:52,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:41:52,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:41:52,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:41:52,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:41:52,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:41:52,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:41:52,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:41:52,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:41:52,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:41:52,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:41:52,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:41:52,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:41:52,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:41:52,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:41:52,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:41:52,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:41:52,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:41:52,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:41:52,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:41:52,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:41:52,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:41:52,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:41:52,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:41:52,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:41:52,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:41:52,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:41:52,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:41:52,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:41:52,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:41:52,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:41:52,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:41:52,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:41:52,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:41:52,635 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:41:52,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:41:52,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:41:52,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:41:52,651 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:41:52,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:41:52,651 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:41:52,651 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:41:52,651 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:41:52,652 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:41:52,653 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:41:52,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:41:52,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:41:52,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:41:52,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:41:52,654 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:41:52,654 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:41:52,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:41:52,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:41:52,654 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:41:52,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:41:52,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:41:52,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:41:52,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:41:52,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:41:52,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:41:52,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:41:52,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:41:52,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:41:52,837 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:41:52,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:41:52,906 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_zQakYR/tmp/7edc6c8076d64e57b8c2a0dd328e981a/FLAGf45197468 [2020-07-01 11:41:53,240 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:41:53,240 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:41:53,247 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_zQakYR/tmp/7edc6c8076d64e57b8c2a0dd328e981a/FLAGf45197468 [2020-07-01 11:41:53,645 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_zQakYR/tmp/7edc6c8076d64e57b8c2a0dd328e981a [2020-07-01 11:41:53,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:41:53,658 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:41:53,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:41:53,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:41:53,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:41:53,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:53,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ec1797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53, skipping insertion in model container [2020-07-01 11:41:53,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:53,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:41:53,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:41:53,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:41:53,930 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:41:53,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:41:53,961 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:41:53,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53 WrapperNode [2020-07-01 11:41:53,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:41:53,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:41:53,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:41:53,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:41:53,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:53,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:53,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:41:53,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:41:53,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:41:53,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:41:54,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... [2020-07-01 11:41:54,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:41:54,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:41:54,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:41:54,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:41:54,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:41:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:41:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:41:54,258 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:41:54,258 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 11:41:54,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:54 BoogieIcfgContainer [2020-07-01 11:41:54,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:41:54,262 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:41:54,262 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:41:54,265 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:41:54,265 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:54" (1/1) ... [2020-07-01 11:41:54,277 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 11 edges [2020-07-01 11:41:54,279 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:41:54,279 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:41:54,280 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:41:54,280 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:41:54,282 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:41:54,283 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:41:54,283 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:41:54,302 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:41:54,320 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 11:41:54,325 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:41:54,326 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:41:54,341 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:41:54,343 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:41:54,344 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:41:54,345 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:41:54,345 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:41:54,345 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:41:54,345 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 12 edges [2020-07-01 11:41:54,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:54 BasicIcfg [2020-07-01 11:41:54,346 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:41:54,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:41:54,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:41:54,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:41:54,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:41:53" (1/4) ... [2020-07-01 11:41:54,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63965401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (2/4) ... [2020-07-01 11:41:54,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63965401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:54" (3/4) ... [2020-07-01 11:41:54,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63965401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:54" (4/4) ... [2020-07-01 11:41:54,355 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:41:54,365 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:41:54,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:41:54,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:41:54,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:41:54,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:41:54,410 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:41:54,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:41:54,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:41:54,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:41:54,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:41:54,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:41:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 11:41:54,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:41:54,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 11:41:54,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:41:54,485 INFO L268 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-07-01 11:41:54,485 INFO L268 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-07-01 11:41:54,486 INFO L271 CegarLoopResult]: At program point L11-2(lines 11 16) the Hoare annotation is: true [2020-07-01 11:41:54,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:54 BasicIcfg [2020-07-01 11:41:54,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:41:54,495 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:41:54,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:41:54,498 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:41:54,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:54,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:41:53" (1/5) ... [2020-07-01 11:41:54,500 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a1a15cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:54,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:41:53" (2/5) ... [2020-07-01 11:41:54,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a1a15cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:54,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:41:54" (3/5) ... [2020-07-01 11:41:54,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a1a15cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:54,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:41:54" (4/5) ... [2020-07-01 11:41:54,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a1a15cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:41:54, skipping insertion in model container [2020-07-01 11:41:54,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:41:54,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:41:54" (5/5) ... [2020-07-01 11:41:54,504 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:41:54,533 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:41:54,534 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:41:54,534 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:41:54,534 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:41:54,534 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:41:54,534 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:41:54,534 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:41:54,535 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:41:54,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:41:54,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:41:54,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:54,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:54,563 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:41:54,563 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:41:54,563 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:41:54,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:41:54,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:41:54,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:41:54,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:41:54,565 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:41:54,565 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:41:54,570 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_f_~a_1 |v_ULTIMATE.start_f_#in~a_1|) (= v_ULTIMATE.start_f_~count~0_1 0) (= |v_ULTIMATE.start_f_#in~a_1| v_ULTIMATE.start_main_~x~0_1)) InVars {} OutVars{ULTIMATE.start_f_#in~a=|v_ULTIMATE.start_f_#in~a_1|, ULTIMATE.start_f_#res=|v_ULTIMATE.start_f_#res_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_f_~tmp~0=v_ULTIMATE.start_f_~tmp~0_1, ULTIMATE.start_f_~count~0=v_ULTIMATE.start_f_~count~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~count~1=v_ULTIMATE.start_main_~count~1_1, ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_1|, ULTIMATE.start_f_~a=v_ULTIMATE.start_f_~a_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|] AssignedVars[ULTIMATE.start_f_#in~a, ULTIMATE.start_f_#res, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_f_~tmp~0, ULTIMATE.start_f_~count~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~count~1, ULTIMATE.start_f_#t~post0, ULTIMATE.start_f_~a, ULTIMATE.start_main_~x~0] 6#L11-2true [2020-07-01 11:41:54,570 INFO L796 eck$LassoCheckResult]: Loop: 6#L11-2true [42] L11-2-->L13: Formula: (let ((.cse0 (mod v_ULTIMATE.start_f_~a_4 2))) (and (= .cse0 0) (= .cse0 v_ULTIMATE.start_f_~tmp~0_3) (< 1 v_ULTIMATE.start_f_~a_4))) InVars {ULTIMATE.start_f_~a=v_ULTIMATE.start_f_~a_4} OutVars{ULTIMATE.start_f_~tmp~0=v_ULTIMATE.start_f_~tmp~0_3, ULTIMATE.start_f_~a=v_ULTIMATE.start_f_~a_4} AuxVars[] AssignedVars[ULTIMATE.start_f_~tmp~0] 5#L13true [48] L13-->L13-2: Formula: (and (< v_ULTIMATE.start_f_~a_6 0) (= (+ (div v_ULTIMATE.start_f_~a_6 2) 1) v_ULTIMATE.start_f_~a_5) (> 0 (mod v_ULTIMATE.start_f_~a_6 2)) (= 0 v_ULTIMATE.start_f_~tmp~0_4)) InVars {ULTIMATE.start_f_~tmp~0=v_ULTIMATE.start_f_~tmp~0_4, ULTIMATE.start_f_~a=v_ULTIMATE.start_f_~a_6} OutVars{ULTIMATE.start_f_~tmp~0=v_ULTIMATE.start_f_~tmp~0_4, ULTIMATE.start_f_~a=v_ULTIMATE.start_f_~a_5} AuxVars[] AssignedVars[ULTIMATE.start_f_~a] 4#L13-2true [28] L13-2-->L11-2: Formula: (= (+ v_ULTIMATE.start_f_~count~0_4 1) v_ULTIMATE.start_f_~count~0_3) InVars {ULTIMATE.start_f_~count~0=v_ULTIMATE.start_f_~count~0_4} OutVars{ULTIMATE.start_f_#t~post0=|v_ULTIMATE.start_f_#t~post0_2|, ULTIMATE.start_f_~count~0=v_ULTIMATE.start_f_~count~0_3} AuxVars[] AssignedVars[ULTIMATE.start_f_~count~0, ULTIMATE.start_f_#t~post0] 6#L11-2true [2020-07-01 11:41:54,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:54,577 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 11:41:54,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:54,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121692862] [2020-07-01 11:41:54,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:41:54,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:41:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:41:54,657 INFO L82 PathProgramCache]: Analyzing trace with hash 71669, now seen corresponding path program 1 times [2020-07-01 11:41:54,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:41:54,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003982892] [2020-07-01 11:41:54,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:41:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:41:54,710 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 11:41:54,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003982892] [2020-07-01 11:41:54,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:41:54,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 11:41:54,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372201418] [2020-07-01 11:41:54,718 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 11:41:54,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:41:54,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-01 11:41:54,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-01 11:41:54,736 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 2 states. [2020-07-01 11:41:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:41:54,765 INFO L93 Difference]: Finished difference Result 4 states and 9 transitions. [2020-07-01 11:41:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:41:54,768 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 11:41:54,772 INFO L168 Benchmark]: Toolchain (without parser) took 1113.45 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 557.4 MB in the beginning and 595.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,773 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:41:54,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.00 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 557.4 MB in the beginning and 652.5 MB in the end (delta: -95.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 690.0 MB. Free memory was 652.5 MB in the beginning and 651.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,776 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 ms. Allocated memory is still 690.0 MB. Free memory was 651.4 MB in the beginning and 649.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,777 INFO L168 Benchmark]: RCFGBuilder took 243.86 ms. Allocated memory is still 690.0 MB. Free memory was 649.2 MB in the beginning and 634.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,778 INFO L168 Benchmark]: BlockEncodingV2 took 83.94 ms. Allocated memory is still 690.0 MB. Free memory was 634.6 MB in the beginning and 628.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,779 INFO L168 Benchmark]: TraceAbstraction took 146.87 ms. Allocated memory is still 690.0 MB. Free memory was 627.1 MB in the beginning and 618.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,780 INFO L168 Benchmark]: BuchiAutomizer took 274.79 ms. Allocated memory is still 690.0 MB. Free memory was 618.4 MB in the beginning and 595.8 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:41:54,786 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 303.00 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 557.4 MB in the beginning and 652.5 MB in the end (delta: -95.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 690.0 MB. Free memory was 652.5 MB in the beginning and 651.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.23 ms. Allocated memory is still 690.0 MB. Free memory was 651.4 MB in the beginning and 649.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 243.86 ms. Allocated memory is still 690.0 MB. Free memory was 649.2 MB in the beginning and 634.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.94 ms. Allocated memory is still 690.0 MB. Free memory was 634.6 MB in the beginning and 628.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.87 ms. Allocated memory is still 690.0 MB. Free memory was 627.1 MB in the beginning and 618.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 274.79 ms. Allocated memory is still 690.0 MB. Free memory was 618.4 MB in the beginning and 595.8 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 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, 4 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=4occurred 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 * 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 11:41:50.395 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_zQakYR/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:41:55.034 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check