/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 11:28:36,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:28:36,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:28:36,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:28:36,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:28:36,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:28:36,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:28:36,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:28:36,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:28:36,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:28:36,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:28:36,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:28:36,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:28:36,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:28:36,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:28:36,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:28:36,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:28:36,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:28:36,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:28:36,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:28:36,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:28:36,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:28:36,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:28:36,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:28:36,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:28:36,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:28:36,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:28:36,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:28:36,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:28:36,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:28:36,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:28:36,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:28:36,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:28:36,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:28:36,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:28:36,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:28:36,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:28:36,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:28:36,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:28:36,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:28:36,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:28:36,162 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:28:36,177 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:28:36,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:28:36,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:28:36,178 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:28:36,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:28:36,179 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:28:36,179 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:28:36,179 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:28:36,179 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:28:36,179 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:28:36,180 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:28:36,180 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:28:36,180 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:28:36,180 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:28:36,180 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:36,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:28:36,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:28:36,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:28:36,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:28:36,181 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:28:36,181 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:28:36,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:28:36,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:28:36,182 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:28:36,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:28:36,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:28:36,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:28:36,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:28:36,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:28:36,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:28:36,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:28:36,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:28:36,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:28:36,369 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:28:36,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:28:36,432 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_2CtHGS/tmp/47e472e5af074c0ba5225bebd2ed1981/FLAG96f4b6ef0 [2020-07-01 11:28:36,767 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:28:36,768 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:28:36,775 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_2CtHGS/tmp/47e472e5af074c0ba5225bebd2ed1981/FLAG96f4b6ef0 [2020-07-01 11:28:37,187 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_2CtHGS/tmp/47e472e5af074c0ba5225bebd2ed1981 [2020-07-01 11:28:37,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:28:37,200 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:28:37,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:28:37,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:28:37,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:28:37,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c674f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:28:37,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:28:37,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:28:37,464 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:28:37,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:28:37,495 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:28:37,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37 WrapperNode [2020-07-01 11:28:37,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:28:37,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:28:37,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:28:37,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:28:37,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:28:37,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:28:37,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:28:37,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:28:37,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:28:37,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:28:37,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:28:37,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:28:37,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:28:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:28:37,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:28:37,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:28:37,771 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:28:37,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37 BoogieIcfgContainer [2020-07-01 11:28:37,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:28:37,775 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:28:37,775 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:28:37,777 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:28:37,778 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (1/1) ... [2020-07-01 11:28:37,790 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 11:28:37,792 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:28:37,792 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:28:37,793 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:28:37,793 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:28:37,795 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:28:37,796 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:28:37,796 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:28:37,810 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:28:37,817 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:28:37,823 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:28:37,825 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:28:37,839 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:28:37,841 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:28:37,842 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:28:37,842 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:28:37,843 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:28:37,843 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:28:37,843 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 11:28:37,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37 BasicIcfg [2020-07-01 11:28:37,844 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:28:37,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:28:37,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:28:37,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:28:37,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:28:37" (1/4) ... [2020-07-01 11:28:37,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be162cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (2/4) ... [2020-07-01 11:28:37,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be162cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (3/4) ... [2020-07-01 11:28:37,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be162cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37" (4/4) ... [2020-07-01 11:28:37,853 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:28:37,863 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:28:37,870 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:28:37,884 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:28:37,907 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:28:37,907 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:28:37,907 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:28:37,907 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:28:37,907 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:28:37,908 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:28:37,908 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:28:37,908 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:28:37,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:28:37,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:28:37,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:28:37,981 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:28:37,981 INFO L271 CegarLoopResult]: At program point L26-2(lines 26 29) the Hoare annotation is: true [2020-07-01 11:28:37,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37 BasicIcfg [2020-07-01 11:28:37,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:28:37,991 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:28:37,991 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:28:37,994 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:28:37,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:28:37" (1/5) ... [2020-07-01 11:28:37,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36910a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:28:37" (2/5) ... [2020-07-01 11:28:37,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36910a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:28:37" (3/5) ... [2020-07-01 11:28:37,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36910a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:28:37" (4/5) ... [2020-07-01 11:28:37,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36910a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:37, skipping insertion in model container [2020-07-01 11:28:37,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:28:37,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:28:37" (5/5) ... [2020-07-01 11:28:38,000 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:28:38,028 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:28:38,028 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:28:38,028 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:28:38,028 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:28:38,028 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:28:38,029 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:28:38,029 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:28:38,029 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:28:38,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:28:38,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:28:38,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:38,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:38,055 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:28:38,055 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:28:38,055 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:28:38,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:28:38,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:28:38,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:28:38,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:28:38,056 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:28:38,056 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:28:38,061 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L26-2true [2020-07-01 11:28:38,062 INFO L796 eck$LassoCheckResult]: Loop: 4#L26-2true [22] L26-2-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (< v_ULTIMATE.start_main_~x~0_8 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L26-2true [2020-07-01 11:28:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-07-01 11:28:38,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399118147] [2020-07-01 11:28:38,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,150 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-07-01 11:28:38,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351580607] [2020-07-01 11:28:38,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:28:38,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2020-07-01 11:28:38,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:28:38,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221465840] [2020-07-01 11:28:38,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:28:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:28:38,180 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:28:38,229 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:38,230 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:38,230 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:38,230 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:38,230 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:38,230 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,230 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:38,231 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:38,231 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:28:38,231 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:38,231 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:38,252 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 11:28:38,262 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 11:28:38,267 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 11:28:38,371 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:38,372 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 11:28:38,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,431 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,464 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:38,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,597 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}] Lambdas: [3, 1, 1] Nus: [0, 1] [2020-07-01 11:28:38,645 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:28:38,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:28:38,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:28:38,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:28:38,645 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:28:38,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:28:38,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:28:38,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:28:38,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:28:38,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:28:38,646 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:28:38,649 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 11:28:38,653 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 11:28:38,658 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 11:28:38,662 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 11:28:38,674 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 11:28:38,677 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 11:28:38,760 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:28:38,760 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:28:38,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,768 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,768 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 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 11:28:38,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,806 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=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 11:28:38,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:38,842 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:38,843 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 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 11:28:38,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:38,876 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:28:38,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:28:38,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:39,005 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:39,006 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=0}] Lambdas: [3, 1, 1] Nus: [0, 1] 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 11:28:39,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:39,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:39,043 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:39,043 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:28:39,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:28:39,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:28:39,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:28:39,080 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:28:39,119 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,122 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:28:39 BasicIcfg [2020-07-01 11:28:39,136 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:28:39,138 INFO L168 Benchmark]: Toolchain (without parser) took 1937.58 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 438.4 MB in the beginning and 426.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 58.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,139 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:28:39,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.83 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 437.9 MB in the beginning and 529.5 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.49 ms. Allocated memory is still 561.0 MB. Free memory was 529.5 MB in the beginning and 527.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,141 INFO L168 Benchmark]: Boogie Preprocessor took 19.42 ms. Allocated memory is still 561.0 MB. Free memory was 527.9 MB in the beginning and 526.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,142 INFO L168 Benchmark]: RCFGBuilder took 223.64 ms. Allocated memory is still 561.0 MB. Free memory was 526.3 MB in the beginning and 514.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,142 INFO L168 Benchmark]: BlockEncodingV2 took 68.78 ms. Allocated memory is still 561.0 MB. Free memory was 514.3 MB in the beginning and 509.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,143 INFO L168 Benchmark]: TraceAbstraction took 145.28 ms. Allocated memory is still 561.0 MB. Free memory was 508.9 MB in the beginning and 501.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,143 INFO L168 Benchmark]: BuchiAutomizer took 1144.91 ms. Allocated memory is still 561.0 MB. Free memory was 500.4 MB in the beginning and 426.0 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:28:39,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 294.83 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 437.9 MB in the beginning and 529.5 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.49 ms. Allocated memory is still 561.0 MB. Free memory was 529.5 MB in the beginning and 527.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.42 ms. Allocated memory is still 561.0 MB. Free memory was 527.9 MB in the beginning and 526.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.64 ms. Allocated memory is still 561.0 MB. Free memory was 526.3 MB in the beginning and 514.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.78 ms. Allocated memory is still 561.0 MB. Free memory was 514.3 MB in the beginning and 509.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.28 ms. Allocated memory is still 561.0 MB. Free memory was 508.9 MB in the beginning and 501.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1144.91 ms. Allocated memory is still 561.0 MB. Free memory was 500.4 MB in the beginning and 426.0 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 26]: Nontermination argument in form of an infinite program execution. [2020-07-01 11:28:39,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:28:39,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:28:39,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b2bbf9=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e50fedf=0, ~unnamed0~0~false=0, x=-1, y=-1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b2bbf9=0, ~unnamed0~0~true=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e50fedf=0, ~unnamed0~0~false=0, x=-1, y=-1} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b2bbf9=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e50fedf=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, x=-1 + sum_{k=0}^i -1 + -1*k, y=-1 + sum_{k=0}^i -1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [3, 1, 1] Mus: [0, 1] - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() Loop: [L26] COND TRUE x < 0 [L27] x = x + y [L28] y = y - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:28:33.903 ----------------------------------------------- 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_2CtHGS/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:28:39.393 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check