NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:55:55,153 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:55:55,155 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:55:55,167 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:55:55,168 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:55:55,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:55:55,170 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:55:55,171 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:55:55,173 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:55:55,174 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:55:55,175 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:55:55,175 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:55:55,176 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:55:55,177 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:55:55,178 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:55:55,178 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:55:55,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:55:55,181 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:55:55,182 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:55:55,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:55:55,185 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:55:55,186 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:55:55,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:55:55,188 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:55:55,188 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:55:55,189 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:55:55,189 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:55:55,190 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:55:55,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:55:55,191 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:55:55,192 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:55:55,193 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:55:55,194 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:55:55,194 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:55:55,194 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:55:55,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:55:55,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:55:55,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:55:55,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:55:55,197 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-21 22:55:55,211 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:55:55,211 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:55:55,212 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:55:55,212 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:55:55,212 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:55:55,212 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:55:55,212 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:55:55,213 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:55:55,213 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:55:55,213 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:55:55,213 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:55:55,213 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:55:55,213 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:55:55,214 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:55:55,214 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:55:55,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:55:55,214 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:55:55,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:55:55,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:55:55,215 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:55:55,215 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:55:55,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:55:55,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:55:55,215 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:55:55,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:55:55,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:55:55,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:55:55,216 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:55:55,216 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:55:55,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:55:55,254 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:55:55,257 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:55:55,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:55:55,259 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:55:55,260 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 22:55:55,381 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/c6ad8d78cb264ce1a7f892e9620aefa8/FLAG7f7f53885 [2020-06-21 22:55:55,716 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:55:55,717 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 22:55:55,723 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/c6ad8d78cb264ce1a7f892e9620aefa8/FLAG7f7f53885 [2020-06-21 22:55:56,121 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/c6ad8d78cb264ce1a7f892e9620aefa8 [2020-06-21 22:55:56,132 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:55:56,133 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:55:56,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:55:56,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:55:56,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:55:56,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446011ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56, skipping insertion in model container [2020-06-21 22:55:56,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:55:56,165 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:55:56,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:55:56,327 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:55:56,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:55:56,437 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:55:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56 WrapperNode [2020-06-21 22:55:56,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:55:56,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:55:56,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:55:56,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:55:56,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:55:56,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:55:56,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:55:56,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:55:56,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:55:56,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:55:56,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:55:56,502 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:55:56,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:55:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-21 22:55:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:55:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:55:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-21 22:55:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-06-21 22:55:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-21 22:55:56,770 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:55:56,770 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:55:56,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:55:56 BoogieIcfgContainer [2020-06-21 22:55:56,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:55:56,772 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:55:56,773 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:55:56,775 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:55:56,776 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:55:56" (1/1) ... [2020-06-21 22:55:56,791 INFO L313 BlockEncoder]: Initial Icfg 21 locations, 22 edges [2020-06-21 22:55:56,793 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:55:56,794 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:55:56,794 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:55:56,794 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:55:56,796 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:55:56,797 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:55:56,797 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:55:56,815 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:55:56,835 INFO L200 BlockEncoder]: SBE split 9 edges [2020-06-21 22:55:56,840 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:55:56,842 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:55:56,864 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-06-21 22:55:56,866 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-21 22:55:56,868 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:55:56,868 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:55:56,875 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 22:55:56,875 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:55:56,876 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:55:56,876 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:55:56,876 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:55:56,877 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:55:56,877 INFO L313 BlockEncoder]: Encoded RCFG 14 locations, 23 edges [2020-06-21 22:55:56,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:55:56 BasicIcfg [2020-06-21 22:55:56,878 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:55:56,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:55:56,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:55:56,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:55:56,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:55:56" (1/4) ... [2020-06-21 22:55:56,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22be50da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:55:56, skipping insertion in model container [2020-06-21 22:55:56,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (2/4) ... [2020-06-21 22:55:56,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22be50da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:55:56, skipping insertion in model container [2020-06-21 22:55:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:55:56" (3/4) ... [2020-06-21 22:55:56,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22be50da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:55:56, skipping insertion in model container [2020-06-21 22:55:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:55:56" (4/4) ... [2020-06-21 22:55:56,887 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:55:56,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:55:56,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-06-21 22:55:56,922 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-06-21 22:55:56,950 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:55:56,950 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:55:56,951 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:55:56,951 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:55:56,951 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:55:56,951 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:55:56,951 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:55:56,951 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:55:56,952 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:55:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-06-21 22:55:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-21 22:55:56,972 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:55:56,973 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-21 22:55:56,973 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:55:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash 75118, now seen corresponding path program 1 times [2020-06-21 22:55:56,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:56,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:55:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:55:57,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:55:57,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-21 22:55:57,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-21 22:55:57,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:55:57,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,158 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-06-21 22:55:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:55:57,235 INFO L93 Difference]: Finished difference Result 14 states and 23 transitions. [2020-06-21 22:55:57,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:55:57,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-06-21 22:55:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:55:57,248 INFO L225 Difference]: With dead ends: 14 [2020-06-21 22:55:57,248 INFO L226 Difference]: Without dead ends: 10 [2020-06-21 22:55:57,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-06-21 22:55:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-21 22:55:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-21 22:55:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2020-06-21 22:55:57,287 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 15 transitions. Word has length 3 [2020-06-21 22:55:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:55:57,287 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-21 22:55:57,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-21 22:55:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 15 transitions. [2020-06-21 22:55:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-21 22:55:57,288 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:55:57,288 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-21 22:55:57,288 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:55:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:57,289 INFO L82 PathProgramCache]: Analyzing trace with hash 75120, now seen corresponding path program 1 times [2020-06-21 22:55:57,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:57,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:55:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:55:57,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:55:57,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-21 22:55:57,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-21 22:55:57,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:55:57,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,309 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. Second operand 3 states. [2020-06-21 22:55:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:55:57,343 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-06-21 22:55:57,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:55:57,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-06-21 22:55:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:55:57,344 INFO L225 Difference]: With dead ends: 14 [2020-06-21 22:55:57,344 INFO L226 Difference]: Without dead ends: 10 [2020-06-21 22:55:57,345 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-06-21 22:55:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-21 22:55:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-21 22:55:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-06-21 22:55:57,348 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2020-06-21 22:55:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:55:57,348 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-06-21 22:55:57,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-21 22:55:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-06-21 22:55:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-21 22:55:57,349 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:55:57,349 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-21 22:55:57,349 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:55:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:57,350 INFO L82 PathProgramCache]: Analyzing trace with hash 75121, now seen corresponding path program 1 times [2020-06-21 22:55:57,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:57,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:55:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:55:57,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:55:57,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-21 22:55:57,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-21 22:55:57,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:55:57,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,376 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-06-21 22:55:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:55:57,398 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-06-21 22:55:57,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:55:57,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-06-21 22:55:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:55:57,399 INFO L225 Difference]: With dead ends: 10 [2020-06-21 22:55:57,399 INFO L226 Difference]: Without dead ends: 0 [2020-06-21 22:55:57,400 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:55:57,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-06-21 22:55:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-06-21 22:55:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-06-21 22:55:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-06-21 22:55:57,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2020-06-21 22:55:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:55:57,401 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 22:55:57,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-21 22:55:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-06-21 22:55:57,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 22:55:57,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-06-21 22:55:57,425 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2020-06-21 22:55:57,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 22:55:57,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr7REQUIRES_VIOLATION(line 12) no Hoare annotation was computed. [2020-06-21 22:55:57,425 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2020-06-21 22:55:57,426 INFO L448 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,426 INFO L448 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,426 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr5REQUIRES_VIOLATION(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,426 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr6REQUIRES_VIOLATION(line 12) no Hoare annotation was computed. [2020-06-21 22:55:57,426 INFO L444 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#a~0.offset| 0) (= 1 (select |#valid| |ULTIMATE.start_main_~#a~0.base|)) (= (select |#length| |ULTIMATE.start_main_~#a~0.base|) 4192)) [2020-06-21 22:55:57,426 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3REQUIRES_VIOLATION(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr4REQUIRES_VIOLATION(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-06-21 22:55:57,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2REQUIRES_VIOLATION(line 11) no Hoare annotation was computed. [2020-06-21 22:55:57,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-06-21 22:55:57,427 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-21 22:55:57,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2020-06-21 22:55:57,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2020-06-21 22:55:57,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:55:57 BasicIcfg [2020-06-21 22:55:57,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:55:57,443 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:55:57,443 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:55:57,446 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:55:57,447 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:55:57,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 10:55:56" (1/5) ... [2020-06-21 22:55:57,447 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66a4b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:55:57, skipping insertion in model container [2020-06-21 22:55:57,447 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:55:57,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:55:56" (2/5) ... [2020-06-21 22:55:57,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66a4b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:55:57, skipping insertion in model container [2020-06-21 22:55:57,448 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:55:57,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:55:56" (3/5) ... [2020-06-21 22:55:57,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66a4b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:55:57, skipping insertion in model container [2020-06-21 22:55:57,449 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:55:57,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:55:56" (4/5) ... [2020-06-21 22:55:57,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66a4b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:55:57, skipping insertion in model container [2020-06-21 22:55:57,449 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:55:57,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:55:57" (5/5) ... [2020-06-21 22:55:57,451 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:55:57,471 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:55:57,472 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 22:55:57,472 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 22:55:57,472 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:55:57,472 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:55:57,472 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:55:57,472 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 22:55:57,472 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:55:57,472 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 22:55:57,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-06-21 22:55:57,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 22:55:57,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:55:57,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:55:57,485 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 22:55:57,485 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 22:55:57,485 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 22:55:57,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-06-21 22:55:57,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 22:55:57,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:55:57,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:55:57,487 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 22:55:57,487 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 22:55:57,492 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue [45] ULTIMATE.startENTRY-->L-1: Formula: (and (= |v_#NULL.offset_1| 0) (= |v_#NULL.base_1| 0) (= |v_#valid_1| (store |v_#valid_2| 0 0))) InVars {#valid=|v_#valid_2|} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|, #valid=|v_#valid_1|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] 8#L-1true [66] L-1-->L10-3: Formula: (and (= 0 (select |v_#valid_4| |v_ULTIMATE.start_main_~#a~0.base_1|)) (= (store |v_#valid_4| |v_ULTIMATE.start_main_~#a~0.base_1| 1) |v_#valid_3|) (= |v_#length_1| (store |v_#length_2| |v_ULTIMATE.start_main_~#a~0.base_1| 4192)) (< |v_ULTIMATE.start_main_~#a~0.base_1| |v_#StackHeapBarrier_1|) (= 0 |v_ULTIMATE.start_main_~#a~0.offset_1|) (> |v_ULTIMATE.start_main_~#a~0.base_1| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_2|, #valid=|v_#valid_4|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_1|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, #valid=|v_#valid_3|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_1|, #length=|v_#length_1|, ULTIMATE.start_main_#t~mem0=|v_ULTIMATE.start_main_#t~mem0_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#a~0.offset, ULTIMATE.start_main_~#a~0.base, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet2, #valid, ULTIMATE.start_main_#t~mem1, #length, ULTIMATE.start_main_#t~mem0] 5#L10-3true [2020-06-21 22:55:57,493 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-3true [88] L10-3-->L11: Formula: (let ((.cse0 (+ |v_ULTIMATE.start_main_~#a~0.offset_19| 8))) (and (<= 0 .cse0) (<= 0 (select (select |v_#memory_int_11| |v_ULTIMATE.start_main_~#a~0.base_26|) .cse0)) (= 1 (select |v_#valid_23| |v_ULTIMATE.start_main_~#a~0.base_26|)) (<= (+ |v_ULTIMATE.start_main_~#a~0.offset_19| 12) (select |v_#length_13| |v_ULTIMATE.start_main_~#a~0.base_26|)))) InVars {ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_19|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_26|, #valid=|v_#valid_23|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} OutVars{ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_19|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_26|, #valid=|v_#valid_23|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_#t~mem0=|v_ULTIMATE.start_main_#t~mem0_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem0] 13#L11true [46] L11-->L11-1: Formula: (let ((.cse0 (+ |v_ULTIMATE.start_main_~#a~0.offset_6| 8))) (and (<= 0 .cse0) (<= (+ |v_ULTIMATE.start_main_~#a~0.offset_6| 12) (select |v_#length_5| |v_ULTIMATE.start_main_~#a~0.base_7|)) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#a~0.base_7|) 1) (= |v_ULTIMATE.start_main_#t~mem1_2| (select (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#a~0.base_7|) .cse0)))) InVars {#memory_int=|v_#memory_int_2|, ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_6|, #length=|v_#length_5|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_7|, #valid=|v_#valid_7|} OutVars{ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_6|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_7|, #valid=|v_#valid_7|, #memory_int=|v_#memory_int_2|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_2|, #length=|v_#length_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem1] 9#L11-1true [85] L11-1-->L12: Formula: (let ((.cse0 (+ |v_ULTIMATE.start_main_~#a~0.offset_16| 8))) (and (= |v_#memory_int_7| (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#a~0.base_22| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#a~0.base_22|) .cse0 (+ |v_ULTIMATE.start_main_#t~mem1_6| (- 1))))) (<= 0 .cse0) (<= (+ |v_ULTIMATE.start_main_~#a~0.offset_16| 12) (select |v_#length_11| |v_ULTIMATE.start_main_~#a~0.base_22|)) (= 1 (select |v_#valid_19| |v_ULTIMATE.start_main_~#a~0.base_22|)))) InVars {ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_16|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_22|, #valid=|v_#valid_19|, #memory_int=|v_#memory_int_8|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_6|, #length=|v_#length_11|} OutVars{ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_16|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_22|, #valid=|v_#valid_19|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_5|, #length=|v_#length_11|} AuxVars[] AssignedVars[#memory_int, ULTIMATE.start_main_#t~mem1] 14#L12true [87] L12-->L10-3: Formula: (let ((.cse0 (+ |v_ULTIMATE.start_main_~#a~0.offset_18| 8))) (and (= 1 (select |v_#valid_22| |v_ULTIMATE.start_main_~#a~0.base_25|)) (<= 0 .cse0) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#a~0.base_25| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#a~0.base_25|) .cse0 |v_ULTIMATE.start_main_#t~nondet2_5|))) (<= (+ |v_ULTIMATE.start_main_~#a~0.offset_18| 12) (select |v_#length_12| |v_ULTIMATE.start_main_~#a~0.base_25|)))) InVars {ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_18|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_22|, #memory_int=|v_#memory_int_10|, #length=|v_#length_12|} OutVars{ULTIMATE.start_main_~#a~0.offset=|v_ULTIMATE.start_main_~#a~0.offset_18|, ULTIMATE.start_main_~#a~0.base=|v_ULTIMATE.start_main_~#a~0.base_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_22|, #memory_int=|v_#memory_int_9|, #length=|v_#length_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #memory_int] 5#L10-3true [2020-06-21 22:55:57,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:57,494 INFO L82 PathProgramCache]: Analyzing trace with hash 2422, now seen corresponding path program 1 times [2020-06-21 22:55:57,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:57,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:57,525 INFO L82 PathProgramCache]: Analyzing trace with hash 3592057, now seen corresponding path program 1 times [2020-06-21 22:55:57,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:57,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:55:57,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2055530898, now seen corresponding path program 1 times [2020-06-21 22:55:57,541 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:55:57,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:55:57,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:55:57,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:55:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:55:57,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:55:57 BasicIcfg [2020-06-21 22:55:57,684 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:55:57,685 INFO L168 Benchmark]: Toolchain (without parser) took 1552.46 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 564.8 MB in the beginning and 568.6 MB in the end (delta: -3.8 MB). Peak memory consumption was 49.2 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,687 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 22:55:57,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.56 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 564.8 MB in the beginning and 669.3 MB in the end (delta: -104.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.48 ms. Allocated memory is still 702.5 MB. Free memory was 669.3 MB in the beginning and 666.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,689 INFO L168 Benchmark]: Boogie Preprocessor took 23.51 ms. Allocated memory is still 702.5 MB. Free memory was 666.5 MB in the beginning and 664.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,689 INFO L168 Benchmark]: RCFGBuilder took 270.09 ms. Allocated memory is still 702.5 MB. Free memory was 664.3 MB in the beginning and 646.5 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,690 INFO L168 Benchmark]: BlockEncodingV2 took 105.78 ms. Allocated memory is still 702.5 MB. Free memory was 646.5 MB in the beginning and 638.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,691 INFO L168 Benchmark]: TraceAbstraction took 563.32 ms. Allocated memory is still 702.5 MB. Free memory was 638.9 MB in the beginning and 592.4 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,691 INFO L168 Benchmark]: BuchiAutomizer took 241.73 ms. Allocated memory is still 702.5 MB. Free memory was 592.4 MB in the beginning and 568.6 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:55:57,696 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 21 locations, 22 edges - StatisticsResult: Encoded RCFG 14 locations, 23 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 303.56 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 564.8 MB in the beginning and 669.3 MB in the end (delta: -104.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 39.48 ms. Allocated memory is still 702.5 MB. Free memory was 669.3 MB in the beginning and 666.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 23.51 ms. Allocated memory is still 702.5 MB. Free memory was 666.5 MB in the beginning and 664.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 270.09 ms. Allocated memory is still 702.5 MB. Free memory was 664.3 MB in the beginning and 646.5 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 105.78 ms. Allocated memory is still 702.5 MB. Free memory was 646.5 MB in the beginning and 638.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 563.32 ms. Allocated memory is still 702.5 MB. Free memory was 638.9 MB in the beginning and 592.4 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 241.73 ms. Allocated memory is still 702.5 MB. Free memory was 592.4 MB in the beginning and 568.6 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant [2020-06-21 22:55:57,707 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2020-06-21 22:55:57,707 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (a == 0 && 1 == \valid[a]) && unknown-#length-unknown[a] == 4192 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 8 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 24 SDslu, 2 SDs, 0 SdLazy, 31 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 14 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=842} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@6d5331da=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@3cf30f39=0, NULL=0, \result=0, a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dc08412=8586, NULL=842, a=841} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; Loop: [L10] EXPR a[2] [L10] COND TRUE a[2] >= 0 [L11] EXPR a[2] [L11] a[2] = a[2] - 1 [L12] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 22:55:52.841 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 22:55:57.935 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check