/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:37:52,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:37:52,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:37:52,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:37:52,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:37:52,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:37:52,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:37:52,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:37:52,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:37:52,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:37:52,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:37:52,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:37:52,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:37:52,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:37:52,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:37:52,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:37:52,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:37:52,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:37:52,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:37:52,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:37:52,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:37:52,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:37:52,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:37:52,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:37:52,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:37:52,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:37:52,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:37:52,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:37:52,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:37:52,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:37:52,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:37:52,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:37:52,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:37:52,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:37:52,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:37:52,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:37:52,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:37:52,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:37:52,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:37:52,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:37:52,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:37:52,149 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:37:52,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:37:52,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:37:52,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:37:52,164 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:37:52,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:37:52,165 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:37:52,165 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:37:52,165 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:37:52,165 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:37:52,165 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:37:52,166 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:37:52,166 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:37:52,166 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:37:52,166 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:37:52,166 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:52,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:37:52,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:37:52,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:37:52,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:37:52,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:37:52,167 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:37:52,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:37:52,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:37:52,168 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:37:52,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:37:52,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:37:52,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:37:52,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:37:52,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:37:52,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:37:52,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:37:52,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:37:52,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:37:52,354 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:37:52,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:37:52,420 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FTQRr_/tmp/cc4d087a89344bb095925650c2010bad/FLAGa6f09d537 [2020-07-01 10:37:52,744 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:37:52,745 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:37:52,752 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FTQRr_/tmp/cc4d087a89344bb095925650c2010bad/FLAGa6f09d537 [2020-07-01 10:37:53,174 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_FTQRr_/tmp/cc4d087a89344bb095925650c2010bad [2020-07-01 10:37:53,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:37:53,187 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:37:53,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:37:53,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:37:53,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:37:53,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da9c102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53, skipping insertion in model container [2020-07-01 10:37:53,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:37:53,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:37:53,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:37:53,452 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:37:53,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:37:53,482 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:37:53,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53 WrapperNode [2020-07-01 10:37:53,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:37:53,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:37:53,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:37:53,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:37:53,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:37:53,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:37:53,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:37:53,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:37:53,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:37:53,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:37:53,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:37:53,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:37:53,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:37:53,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:37:53,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:37:53,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:37:53,778 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:37:53,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:37:53 BoogieIcfgContainer [2020-07-01 10:37:53,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:37:53,782 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:37:53,782 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:37:53,784 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:37:53,785 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:37:53" (1/1) ... [2020-07-01 10:37:53,798 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 10:37:53,800 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:37:53,801 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:37:53,801 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:37:53,802 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:37:53,803 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:37:53,804 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:37:53,804 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:37:53,819 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:37:53,836 INFO L200 BlockEncoder]: SBE split 4 edges [2020-07-01 10:37:53,840 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:37:53,842 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:37:53,852 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:37:53,854 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 10:37:53,855 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:37:53,855 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:37:53,856 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:37:53,856 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:37:53,856 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 13 edges [2020-07-01 10:37:53,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:37:53 BasicIcfg [2020-07-01 10:37:53,857 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:37:53,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:37:53,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:37:53,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:37:53,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:37:53" (1/4) ... [2020-07-01 10:37:53,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab9a462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:37:53, skipping insertion in model container [2020-07-01 10:37:53,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (2/4) ... [2020-07-01 10:37:53,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab9a462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:37:53, skipping insertion in model container [2020-07-01 10:37:53,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:37:53" (3/4) ... [2020-07-01 10:37:53,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab9a462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:37:53, skipping insertion in model container [2020-07-01 10:37:53,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:37:53" (4/4) ... [2020-07-01 10:37:53,866 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:37:53,876 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:37:53,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:37:53,897 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:37:53,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:37:53,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:37:53,920 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:37:53,920 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:37:53,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:37:53,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:37:53,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:37:53,921 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:37:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-07-01 10:37:53,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:37:53,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-07-01 10:37:53,995 INFO L271 CegarLoopResult]: At program point L18-1(lines 11 23) the Hoare annotation is: true [2020-07-01 10:37:53,995 INFO L268 CegarLoopResult]: For program point L16(lines 16 22) no Hoare annotation was computed. [2020-07-01 10:37:53,995 INFO L268 CegarLoopResult]: For program point L14(lines 14 22) no Hoare annotation was computed. [2020-07-01 10:37:53,995 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:37:53,995 INFO L268 CegarLoopResult]: For program point L12(lines 12 22) no Hoare annotation was computed. [2020-07-01 10:37:53,996 INFO L268 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-07-01 10:37:54,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:37:54 BasicIcfg [2020-07-01 10:37:54,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:37:54,004 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:37:54,004 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:37:54,007 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:37:54,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:37:54,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:37:53" (1/5) ... [2020-07-01 10:37:54,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c29501f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:37:54, skipping insertion in model container [2020-07-01 10:37:54,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:37:54,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:37:53" (2/5) ... [2020-07-01 10:37:54,010 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c29501f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:37:54, skipping insertion in model container [2020-07-01 10:37:54,010 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:37:54,010 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:37:53" (3/5) ... [2020-07-01 10:37:54,010 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c29501f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:37:54, skipping insertion in model container [2020-07-01 10:37:54,011 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:37:54,011 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:37:53" (4/5) ... [2020-07-01 10:37:54,011 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c29501f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:37:54, skipping insertion in model container [2020-07-01 10:37:54,011 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:37:54,011 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:37:54" (5/5) ... [2020-07-01 10:37:54,013 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:37:54,048 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:37:54,049 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:37:54,049 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:37:54,049 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:37:54,049 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:37:54,049 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:37:54,049 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:37:54,050 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:37:54,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:37:54,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:37:54,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:37:54,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:37:54,077 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:37:54,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:37:54,077 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:37:54,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 10:37:54,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 10:37:54,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:37:54,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:37:54,079 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:37:54,079 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:37:54,084 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L18-1: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 5#L18-1true [2020-07-01 10:37:54,084 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-1true [44] L18-1-->L12: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_5) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[] 6#L12true [59] L12-->L18-1: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 5#L18-1true [2020-07-01 10:37:54,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:37:54,090 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-07-01 10:37:54,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:37:54,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962211812] [2020-07-01 10:37:54,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:37:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,161 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:37:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:37:54,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2384, now seen corresponding path program 1 times [2020-07-01 10:37:54,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:37:54,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816187164] [2020-07-01 10:37:54,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:37:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:37:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:37:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash 68693, now seen corresponding path program 1 times [2020-07-01 10:37:54,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:37:54,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976586231] [2020-07-01 10:37:54,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:37:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:37:54,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:37:54,237 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:37:54,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:37:54,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:37:54,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:37:54,239 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:37:54,239 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,239 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:37:54,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:37:54,239 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:37:54,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:37:54,240 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:37:54,258 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 10:37:54,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:37:54,323 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:37:54,324 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 10:37:54,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,330 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:37:54,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:37:54,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,388 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 10:37:54,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,426 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:37:54,468 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:37:54,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:37:54,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:37:54,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:37:54,469 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:37:54,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:37:54,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:37:54,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:37:54,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:37:54,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:37:54,472 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 10:37:54,476 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 10:37:54,479 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 10:37:54,484 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 10:37:54,489 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 10:37:54,494 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 10:37:54,509 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 10:37:54,588 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:37:54,588 INFO L404 LassoAnalysis]: Checking for nontermination... 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 10:37:54,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,595 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,595 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:37:54,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,633 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,669 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,670 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,780 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,781 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:37:54,813 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:37:54,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:37:54,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:37:54,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:37:54,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2020-07-01 10:37:54,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:37:54 BasicIcfg [2020-07-01 10:37:54,910 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:37:54,912 INFO L168 Benchmark]: Toolchain (without parser) took 1724.47 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 561.7 MB in the beginning and 539.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 66.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,913 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:37:54,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.36 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 561.7 MB in the beginning and 657.5 MB in the end (delta: -95.9 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 694.2 MB. Free memory was 657.5 MB in the beginning and 654.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,915 INFO L168 Benchmark]: Boogie Preprocessor took 20.34 ms. Allocated memory is still 694.2 MB. Free memory is still 654.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:37:54,915 INFO L168 Benchmark]: RCFGBuilder took 241.09 ms. Allocated memory is still 694.2 MB. Free memory was 653.5 MB in the beginning and 640.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,916 INFO L168 Benchmark]: BlockEncodingV2 took 75.06 ms. Allocated memory is still 694.2 MB. Free memory was 640.1 MB in the beginning and 634.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,916 INFO L168 Benchmark]: TraceAbstraction took 144.95 ms. Allocated memory is still 694.2 MB. Free memory was 633.4 MB in the beginning and 625.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,917 INFO L168 Benchmark]: BuchiAutomizer took 905.73 ms. Allocated memory is still 694.2 MB. Free memory was 625.2 MB in the beginning and 539.4 MB in the end (delta: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:37:54,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 13 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.36 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 561.7 MB in the beginning and 657.5 MB in the end (delta: -95.9 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 694.2 MB. Free memory was 657.5 MB in the beginning and 654.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.34 ms. Allocated memory is still 694.2 MB. Free memory is still 654.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 241.09 ms. Allocated memory is still 694.2 MB. Free memory was 653.5 MB in the beginning and 640.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.06 ms. Allocated memory is still 694.2 MB. Free memory was 640.1 MB in the beginning and 634.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.95 ms. Allocated memory is still 694.2 MB. Free memory was 633.4 MB in the beginning and 625.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 905.73 ms. Allocated memory is still 694.2 MB. Free memory was 625.2 MB in the beginning and 539.4 MB in the end (delta: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 11]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4996f1d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@209a3ed4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21f91396=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@302d1c25=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a9a8411=0, x=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4996f1d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@209a3ed4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21f91396=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@302d1c25=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a9a8411=0, x=0} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4996f1d3=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@209a3ed4=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21f91396=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@302d1c25=-1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a9a8411=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int x = __VERIFIER_nondet_int(); Loop: [L11] COND TRUE x >= 0 [L12] COND TRUE __VERIFIER_nondet_int() [L13] x += 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:37:49.894 ----------------------------------------------- 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_FTQRr_/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:37:55.162 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check