/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:20:52,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:20:52,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:20:52,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:20:52,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:20:52,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:20:52,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:20:52,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:20:52,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:20:52,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:20:52,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:20:52,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:20:52,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:20:52,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:20:52,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:20:52,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:20:52,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:20:52,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:20:52,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:20:52,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:20:52,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:20:52,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:20:52,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:20:52,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:20:52,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:20:52,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:20:52,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:20:52,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:20:52,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:20:52,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:20:52,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:20:52,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:20:52,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:20:52,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:20:52,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:20:52,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:20:52,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:20:52,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:20:52,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:20:52,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:20:52,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:20:52,278 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:20:52,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:20:52,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:20:52,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:20:52,294 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:20:52,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:20:52,295 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:52,295 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:20:52,295 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:20:52,295 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:20:52,295 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:20:52,296 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:20:52,296 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:20:52,296 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:20:52,296 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:20:52,296 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:20:52,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:20:52,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:20:52,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:20:52,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:20:52,297 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:20:52,297 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:20:52,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:20:52,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:20:52,298 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:20:52,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:20:52,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:20:52,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:20:52,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:20:52,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:20:52,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:20:52,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:20:52,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:20:52,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:20:52,489 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:20:52,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:20:52,561 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_48ETg3/tmp/584ede7d65854933ba8c2e88274ce328/FLAGf7653a984 [2020-07-01 12:20:52,899 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:20:52,900 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:20:52,907 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_48ETg3/tmp/584ede7d65854933ba8c2e88274ce328/FLAGf7653a984 [2020-07-01 12:20:53,339 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_48ETg3/tmp/584ede7d65854933ba8c2e88274ce328 [2020-07-01 12:20:53,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:20:53,351 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:20:53,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:53,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:20:53,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:20:53,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e97a757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53, skipping insertion in model container [2020-07-01 12:20:53,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:20:53,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:20:53,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:53,616 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:20:53,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:53,648 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:20:53,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53 WrapperNode [2020-07-01 12:20:53,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:53,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:53,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:20:53,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:20:53,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:53,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:20:53,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:20:53,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:20:53,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:20:53,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:20:53,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:20:53,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:20:53,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (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 12:20:53,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:20:53,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:20:53,957 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:20:53,957 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:20:53,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:53 BoogieIcfgContainer [2020-07-01 12:20:53,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:20:53,962 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:20:53,962 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:20:53,964 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:20:53,965 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:53" (1/1) ... [2020-07-01 12:20:53,977 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 17 edges [2020-07-01 12:20:53,979 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:20:53,980 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:20:53,981 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:20:53,981 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:53,983 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:20:53,984 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:20:53,984 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:20:53,999 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:20:54,016 INFO L200 BlockEncoder]: SBE split 5 edges [2020-07-01 12:20:54,020 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:20:54,022 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:54,035 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:20:54,037 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:20:54,038 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:20:54,038 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:54,038 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:20:54,039 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:20:54,039 INFO L313 BlockEncoder]: Encoded RCFG 7 locations, 17 edges [2020-07-01 12:20:54,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:54 BasicIcfg [2020-07-01 12:20:54,040 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:20:54,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:20:54,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:20:54,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:20:54,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:20:53" (1/4) ... [2020-07-01 12:20:54,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4bffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (2/4) ... [2020-07-01 12:20:54,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4bffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:53" (3/4) ... [2020-07-01 12:20:54,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4bffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:54" (4/4) ... [2020-07-01 12:20:54,049 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:20:54,060 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:20:54,067 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:20:54,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:20:54,109 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:20:54,109 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:20:54,109 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:20:54,109 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:20:54,110 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:20:54,110 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:20:54,110 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:20:54,110 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:20:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-01 12:20:54,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:20:54,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-07-01 12:20:54,185 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:20:54,185 INFO L268 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-07-01 12:20:54,186 INFO L268 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-07-01 12:20:54,186 INFO L268 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2020-07-01 12:20:54,186 INFO L268 CegarLoopResult]: For program point L23(lines 23 31) no Hoare annotation was computed. [2020-07-01 12:20:54,186 INFO L268 CegarLoopResult]: For program point L22(lines 22 32) no Hoare annotation was computed. [2020-07-01 12:20:54,186 INFO L271 CegarLoopResult]: At program point L22-1(lines 19 33) the Hoare annotation is: true [2020-07-01 12:20:54,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:54 BasicIcfg [2020-07-01 12:20:54,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:20:54,196 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:20:54,196 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:20:54,200 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:20:54,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:20:54,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:20:53" (1/5) ... [2020-07-01 12:20:54,201 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec708af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:20:54,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:53" (2/5) ... [2020-07-01 12:20:54,202 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec708af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:20:54,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:53" (3/5) ... [2020-07-01 12:20:54,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec708af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:20:54,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:54" (4/5) ... [2020-07-01 12:20:54,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec708af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:20:54, skipping insertion in model container [2020-07-01 12:20:54,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:20:54,204 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:54" (5/5) ... [2020-07-01 12:20:54,205 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:20:54,235 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:20:54,236 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:20:54,236 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:20:54,236 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:20:54,236 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:20:54,236 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:20:54,236 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:20:54,236 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:20:54,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 12:20:54,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 12:20:54,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:20:54,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:20:54,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:20:54,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:20:54,264 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:20:54,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 12:20:54,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 12:20:54,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:20:54,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:20:54,266 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:20:54,266 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:20:54,271 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L22-1: Formula: (and (= v_ULTIMATE.start_main_~N~0_1 10) (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 3#L22-1true [2020-07-01 12:20:54,272 INFO L796 eck$LassoCheckResult]: Loop: 3#L22-1true [47] L22-1-->L22: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~N~0_7) (= v_ULTIMATE.start_main_~r~0_6 |v_ULTIMATE.start_main_#t~nondet0_3|)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~r~0] 6#L22true [68] L22-->L22-1: Formula: (> v_ULTIMATE.start_main_~r~0_5 3) InVars {ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5} OutVars{ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5} AuxVars[] AssignedVars[] 3#L22-1true [2020-07-01 12:20:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:54,278 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 12:20:54,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:54,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035728089] [2020-07-01 12:20:54,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,359 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:20:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:54,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 1 times [2020-07-01 12:20:54,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:54,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834864994] [2020-07-01 12:20:54,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:20:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:54,379 INFO L82 PathProgramCache]: Analyzing trace with hash 77444, now seen corresponding path program 1 times [2020-07-01 12:20:54,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:54,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228306153] [2020-07-01 12:20:54,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:54,396 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:20:54,448 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:20:54,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:20:54,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:20:54,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:20:54,467 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:20:54,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:20:54,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:20:54,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:20:54,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:20:54,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:20:54,468 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:20:54,487 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 12:20:54,507 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 12:20:54,512 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 12:20:54,515 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 12:20:54,610 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:20:54,611 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 12:20:54,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:20:54,619 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 12:20:54,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:20:54,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:20:54,856 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:20:54,859 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:20:54,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:20:54,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:20:54,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:20:54,859 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:20:54,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:20:54,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:20:54,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:20:54,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:20:54,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:20:54,860 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:20:54,862 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 12:20:54,872 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 12:20:54,879 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 12:20:54,884 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 12:20:54,960 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:20:54,966 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 12:20:54,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:20:54,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:20:54,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:20:54,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:20:54,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:20:54,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:20:54,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:20:54,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:20:54,982 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:20:54,990 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:20:54,990 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2020-07-01 12:20:54,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:20:54,997 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:20:54,998 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:20:54,999 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2020-07-01 12:20:55,033 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:20:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:20:55,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:20:55,077 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:20:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:20:55,091 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:20:55,091 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:20:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:20:55,162 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:20:55,167 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:20:55,169 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states. Second operand 3 states. [2020-07-01 12:20:55,241 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states.. Second operand 3 states. Result 14 states and 33 transitions. Complement of second has 4 states. [2020-07-01 12:20:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:20:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:20:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2020-07-01 12:20:55,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:20:55,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:20:55,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:20:55,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:20:55,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:20:55,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:20:55,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 33 transitions. [2020-07-01 12:20:55,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:20:55,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-07-01 12:20:55,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:20:55,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:20:55,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:20:55,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:20:55,264 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:20:55,264 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:20:55,264 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:20:55,264 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:20:55,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:20:55,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:20:55,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:20:55,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:20:55 BasicIcfg [2020-07-01 12:20:55,270 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:20:55,273 INFO L168 Benchmark]: Toolchain (without parser) took 1920.71 ms. Allocated memory was 514.9 MB in the beginning and 555.2 MB in the end (delta: 40.4 MB). Free memory was 438.4 MB in the beginning and 411.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 67.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,274 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:20:55,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.76 ms. Allocated memory was 514.9 MB in the beginning and 555.2 MB in the end (delta: 40.4 MB). Free memory was 438.4 MB in the beginning and 522.6 MB in the end (delta: -84.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 555.2 MB. Free memory was 522.6 MB in the beginning and 521.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,276 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 ms. Allocated memory is still 555.2 MB. Free memory was 521.3 MB in the beginning and 519.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,276 INFO L168 Benchmark]: RCFGBuilder took 254.59 ms. Allocated memory is still 555.2 MB. Free memory was 519.9 MB in the beginning and 507.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,277 INFO L168 Benchmark]: BlockEncodingV2 took 78.38 ms. Allocated memory is still 555.2 MB. Free memory was 506.4 MB in the beginning and 501.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,277 INFO L168 Benchmark]: TraceAbstraction took 154.33 ms. Allocated memory is still 555.2 MB. Free memory was 500.4 MB in the beginning and 492.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,278 INFO L168 Benchmark]: BuchiAutomizer took 1074.35 ms. Allocated memory is still 555.2 MB. Free memory was 492.0 MB in the beginning and 411.7 MB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:55,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 17 edges - StatisticsResult: Encoded RCFG 7 locations, 17 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 296.76 ms. Allocated memory was 514.9 MB in the beginning and 555.2 MB in the end (delta: 40.4 MB). Free memory was 438.4 MB in the beginning and 522.6 MB in the end (delta: -84.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 555.2 MB. Free memory was 522.6 MB in the beginning and 521.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.67 ms. Allocated memory is still 555.2 MB. Free memory was 521.3 MB in the beginning and 519.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 254.59 ms. Allocated memory is still 555.2 MB. Free memory was 519.9 MB in the beginning and 507.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.38 ms. Allocated memory is still 555.2 MB. Free memory was 506.4 MB in the beginning and 501.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.33 ms. Allocated memory is still 555.2 MB. Free memory was 500.4 MB in the beginning and 492.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1074.35 ms. Allocated memory is still 555.2 MB. Free memory was 492.0 MB in the beginning and 411.7 MB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 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: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred 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 Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function -1 * i + N and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 32 SDslu, 45 SDs, 0 SdLazy, 51 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:20:50.041 ----------------------------------------------- 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_48ETg3/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:20:55.717 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check