/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 10:52:21,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:52:21,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:52:21,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:52:21,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:52:21,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:52:21,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:52:21,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:52:21,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:52:21,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:52:21,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:52:21,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:52:21,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:52:21,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:52:21,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:52:21,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:52:21,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:52:21,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:52:21,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:52:21,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:52:21,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:52:21,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:52:21,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:52:21,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:52:21,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:52:21,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:52:21,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:52:21,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:52:21,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:52:21,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:52:21,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:52:21,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:52:21,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:52:21,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:52:21,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:52:21,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:52:21,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:52:21,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:52:21,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:52:21,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:52:21,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:52:21,492 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:52:21,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:52:21,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:52:21,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:52:21,508 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:52:21,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:52:21,508 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:52:21,509 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:52:21,509 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:52:21,509 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:52:21,509 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:52:21,509 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:52:21,510 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:52:21,510 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:52:21,510 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:52:21,510 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:21,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:52:21,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:52:21,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:52:21,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:52:21,511 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:52:21,511 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:52:21,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:52:21,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:52:21,512 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:52:21,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:52:21,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:52:21,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:52:21,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:52:21,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:52:21,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:52:21,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:52:21,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:52:21,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:52:21,694 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:52:21,695 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:52:21,810 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_eaTwzL/tmp/1134ac7f21b644d3b834999a58136a49/FLAG5018d69b0 [2020-07-01 10:52:22,141 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:52:22,142 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:52:22,148 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_eaTwzL/tmp/1134ac7f21b644d3b834999a58136a49/FLAG5018d69b0 [2020-07-01 10:52:22,548 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_eaTwzL/tmp/1134ac7f21b644d3b834999a58136a49 [2020-07-01 10:52:22,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:52:22,561 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:52:22,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:52:22,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:52:22,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:52:22,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561e1bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22, skipping insertion in model container [2020-07-01 10:52:22,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:52:22,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:52:22,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:52:22,821 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:52:22,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:52:22,852 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:52:22,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22 WrapperNode [2020-07-01 10:52:22,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:52:22,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:52:22,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:52:22,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:52:22,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:52:22,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:52:22,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:52:22,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:52:22,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:52:22,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:52:22,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:52:22,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:52:22,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (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 10:52:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:52:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:52:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-01 10:52:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-01 10:52:23,119 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:52:23,120 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 10:52:23,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23 BoogieIcfgContainer [2020-07-01 10:52:23,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:52:23,124 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:52:23,124 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:52:23,126 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:52:23,127 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (1/1) ... [2020-07-01 10:52:23,140 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2020-07-01 10:52:23,142 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:52:23,143 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:52:23,143 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:52:23,143 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:52:23,145 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:52:23,146 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:52:23,146 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:52:23,160 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:52:23,175 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 10:52:23,179 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:52:23,181 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:52:23,190 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 10:52:23,192 INFO L70 RemoveSinkStates]: Removed 6 edges and 5 locations by removing sink states [2020-07-01 10:52:23,193 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:52:23,194 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:52:23,194 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:52:23,194 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:52:23,195 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 10 edges [2020-07-01 10:52:23,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23 BasicIcfg [2020-07-01 10:52:23,196 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:52:23,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:52:23,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:52:23,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:52:23,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:52:22" (1/4) ... [2020-07-01 10:52:23,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641e04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (2/4) ... [2020-07-01 10:52:23,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641e04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (3/4) ... [2020-07-01 10:52:23,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641e04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23" (4/4) ... [2020-07-01 10:52:23,204 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:52:23,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:52:23,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:52:23,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:52:23,258 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:52:23,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:52:23,259 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:52:23,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:52:23,259 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:52:23,259 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:52:23,259 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:52:23,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:52:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 10:52:23,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:52:23,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 10:52:23,348 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:52:23,349 INFO L271 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-07-01 10:52:23,349 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-07-01 10:52:23,349 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-07-01 10:52:23,349 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-07-01 10:52:23,350 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-07-01 10:52:23,350 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-01 10:52:23,350 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-07-01 10:52:23,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23 BasicIcfg [2020-07-01 10:52:23,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:52:23,354 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:52:23,354 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:52:23,358 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:52:23,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:52:22" (1/5) ... [2020-07-01 10:52:23,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551190e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (2/5) ... [2020-07-01 10:52:23,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551190e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (3/5) ... [2020-07-01 10:52:23,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551190e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23" (4/5) ... [2020-07-01 10:52:23,362 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551190e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,362 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23" (5/5) ... [2020-07-01 10:52:23,364 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:52:23,393 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:52:23,393 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:52:23,393 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:52:23,393 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:52:23,394 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:52:23,394 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:52:23,394 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:52:23,394 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:52:23,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 10:52:23,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:52:23,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:23,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:23,422 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:52:23,423 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:52:23,423 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:52:23,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 10:52:23,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:52:23,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:23,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:23,425 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:52:23,425 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:52:23,430 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [29] ULTIMATE.startENTRY-->L11: Formula: (= v_ULTIMATE.start_main_~input~0_1 10) InVars {} OutVars{ULTIMATE.start_main_#t~ret1=|v_ULTIMATE.start_main_#t~ret1_1|, ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~input~0, ULTIMATE.start_main_~result~0] 5#L11true [30] L11-->idENTRY: Formula: (= |v_id_#in~xInParam_1| v_ULTIMATE.start_main_~input~0_5) InVars {ULTIMATE.start_main_~input~0=v_ULTIMATE.start_main_~input~0_5} OutVars{id_#in~x=|v_id_#in~xInParam_1|} AuxVars[] AssignedVars[id_#in~x]< 7#idENTRYtrue [2020-07-01 10:52:23,430 INFO L796 eck$LassoCheckResult]: Loop: 7#idENTRYtrue [31] idENTRY-->L5: Formula: (= v_id_~x_4 |v_id_#in~x_1|) InVars {id_#in~x=|v_id_#in~x_1|} OutVars{id_#in~x=|v_id_#in~x_1|, id_~x=v_id_~x_4} AuxVars[] AssignedVars[id_~x] 9#L5true [44] L5-->L6: Formula: (> 0 v_id_~x_2) InVars {id_~x=v_id_~x_2} OutVars{id_~x=v_id_~x_2} AuxVars[] AssignedVars[] 8#L6true [34] L6-->idENTRY: Formula: (= |v_id_#in~xInParam_2| (+ v_id_~x_5 (- 1))) InVars {id_~x=v_id_~x_5} OutVars{id_#in~x=|v_id_#in~xInParam_2|} AuxVars[] AssignedVars[id_#in~x]< 7#idENTRYtrue [2020-07-01 10:52:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1890, now seen corresponding path program 1 times [2020-07-01 10:52:23,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439632724] [2020-07-01 10:52:23,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:23,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,526 INFO L82 PathProgramCache]: Analyzing trace with hash 60980, now seen corresponding path program 1 times [2020-07-01 10:52:23,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366859688] [2020-07-01 10:52:23,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,538 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,540 INFO L82 PathProgramCache]: Analyzing trace with hash 56336179, now seen corresponding path program 1 times [2020-07-01 10:52:23,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403870831] [2020-07-01 10:52:23,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:23,613 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 10:52:23,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403870831] [2020-07-01 10:52:23,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 10:52:23,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 10:52:23,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022223490] [2020-07-01 10:52:23,686 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:23,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:23,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:23,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:23,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:23,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:23,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:23,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:23,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:52:23,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:23,704 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:23,719 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 10:52:23,726 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 10:52:23,729 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 10:52:23,740 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 10:52:23,795 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:23,796 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 10:52:23,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:52:23,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:23,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,884 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:23,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:23,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-1} Honda state: {id_#in~x=-1} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 0, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/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 10:52:23,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:52:24,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 10:52:24,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 10:52:24,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 10:52:24,027 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 5 states. [2020-07-01 10:52:24,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 10:52:24,095 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-07-01 10:52:24,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 10:52:24,098 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 10:52:24,102 INFO L168 Benchmark]: Toolchain (without parser) took 1540.87 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 439.0 MB in the beginning and 452.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,103 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:52:24,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.28 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 439.0 MB in the beginning and 534.4 MB in the end (delta: -95.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.35 ms. Allocated memory is still 566.2 MB. Free memory was 534.4 MB in the beginning and 532.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,105 INFO L168 Benchmark]: Boogie Preprocessor took 16.67 ms. Allocated memory is still 566.2 MB. Free memory was 532.9 MB in the beginning and 531.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,105 INFO L168 Benchmark]: RCFGBuilder took 218.81 ms. Allocated memory is still 566.2 MB. Free memory was 531.5 MB in the beginning and 519.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,106 INFO L168 Benchmark]: BlockEncodingV2 took 71.46 ms. Allocated memory is still 566.2 MB. Free memory was 519.4 MB in the beginning and 514.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,107 INFO L168 Benchmark]: TraceAbstraction took 156.94 ms. Allocated memory is still 566.2 MB. Free memory was 514.0 MB in the beginning and 504.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,107 INFO L168 Benchmark]: BuchiAutomizer took 745.39 ms. Allocated memory is still 566.2 MB. Free memory was 504.3 MB in the beginning and 452.7 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:24,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 16 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.28 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 439.0 MB in the beginning and 534.4 MB in the end (delta: -95.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.35 ms. Allocated memory is still 566.2 MB. Free memory was 534.4 MB in the beginning and 532.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.67 ms. Allocated memory is still 566.2 MB. Free memory was 532.9 MB in the beginning and 531.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 218.81 ms. Allocated memory is still 566.2 MB. Free memory was 531.5 MB in the beginning and 519.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.46 ms. Allocated memory is still 566.2 MB. Free memory was 519.4 MB in the beginning and 514.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 156.94 ms. Allocated memory is still 566.2 MB. Free memory was 514.0 MB in the beginning and 504.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 745.39 ms. Allocated memory is still 566.2 MB. Free memory was 504.3 MB in the beginning and 452.7 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 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=8occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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 10:52:19.271 ----------------------------------------------- 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_eaTwzL/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:52:24.344 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check