/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:32:39,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:32:39,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:32:39,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:32:39,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:32:39,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:32:39,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:32:39,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:32:39,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:32:39,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:32:39,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:32:39,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:32:39,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:32:39,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:32:39,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:32:39,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:32:39,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:32:39,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:32:39,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:32:39,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:32:39,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:32:39,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:32:39,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:32:39,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:32:39,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:32:39,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:32:39,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:32:39,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:32:39,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:32:39,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:32:39,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:32:39,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:32:39,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:32:39,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:32:39,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:32:39,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:32:39,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:32:39,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:32:39,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:32:39,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:32:39,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:32:39,298 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:32:39,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:32:39,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:32:39,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:32:39,314 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:32:39,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:32:39,314 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:32:39,314 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:32:39,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:32:39,315 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:32:39,315 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:32:39,315 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:32:39,315 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:32:39,315 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:32:39,316 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:32:39,316 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:39,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:32:39,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:32:39,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:32:39,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:32:39,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:32:39,317 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:32:39,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:32:39,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:32:39,317 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:32:39,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:32:39,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:32:39,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:32:39,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:32:39,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:32:39,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:32:39,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:32:39,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:32:39,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:32:39,511 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:32:39,512 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:32:39,570 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_TbKR8v/tmp/9a24303d3a9b4645a19bb909fc0a318c/FLAGbd1fbf1d8 [2020-07-01 10:32:39,922 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:32:39,923 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:32:39,930 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_TbKR8v/tmp/9a24303d3a9b4645a19bb909fc0a318c/FLAGbd1fbf1d8 [2020-07-01 10:32:40,322 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_TbKR8v/tmp/9a24303d3a9b4645a19bb909fc0a318c [2020-07-01 10:32:40,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:32:40,335 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:32:40,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:32:40,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:32:40,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:32:40,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2587fea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40, skipping insertion in model container [2020-07-01 10:32:40,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:32:40,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:32:40,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:32:40,588 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:32:40,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:32:40,618 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:32:40,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40 WrapperNode [2020-07-01 10:32:40,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:32:40,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:32:40,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:32:40,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:32:40,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:32:40,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:32:40,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:32:40,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:32:40,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:32:40,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:32:40,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:32:40,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:32:40,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:32:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:32:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:32:40,874 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:32:40,874 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:32:40,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:40 BoogieIcfgContainer [2020-07-01 10:32:40,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:32:40,878 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:32:40,878 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:32:40,880 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:32:40,881 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:40" (1/1) ... [2020-07-01 10:32:40,893 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 10:32:40,894 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:32:40,895 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:32:40,895 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:32:40,896 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:32:40,897 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:32:40,898 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:32:40,898 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:32:40,913 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:32:40,928 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 10:32:40,932 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:32:40,934 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:32:40,945 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:32:40,947 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 10:32:40,949 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:32:40,949 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:32:40,955 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 10:32:40,955 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:32:40,956 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:32:40,956 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:32:40,956 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:32:40,956 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:32:40,957 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 10:32:40,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:32:40 BasicIcfg [2020-07-01 10:32:40,957 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:32:40,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:32:40,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:32:40,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:32:40,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:32:40" (1/4) ... [2020-07-01 10:32:40,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2891d184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:32:40, skipping insertion in model container [2020-07-01 10:32:40,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (2/4) ... [2020-07-01 10:32:40,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2891d184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:32:40, skipping insertion in model container [2020-07-01 10:32:40,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:40" (3/4) ... [2020-07-01 10:32:40,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2891d184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:32:40, skipping insertion in model container [2020-07-01 10:32:40,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:32:40" (4/4) ... [2020-07-01 10:32:40,966 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:32:40,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:32:40,983 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:32:40,997 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:32:41,020 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:32:41,020 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:32:41,020 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:32:41,020 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:32:41,020 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:32:41,021 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:32:41,021 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:32:41,021 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:32:41,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 10:32:41,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:32:41,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 10:32:41,094 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:32:41,094 INFO L268 CegarLoopResult]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-07-01 10:32:41,094 INFO L271 CegarLoopResult]: At program point L20-2(lines 19 27) the Hoare annotation is: true [2020-07-01 10:32:41,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:32:41 BasicIcfg [2020-07-01 10:32:41,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:32:41,104 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:32:41,104 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:32:41,107 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:32:41,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:32:41,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:32:40" (1/5) ... [2020-07-01 10:32:41,109 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793408d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:32:41, skipping insertion in model container [2020-07-01 10:32:41,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:32:41,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:32:40" (2/5) ... [2020-07-01 10:32:41,109 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793408d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:32:41, skipping insertion in model container [2020-07-01 10:32:41,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:32:41,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:40" (3/5) ... [2020-07-01 10:32:41,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793408d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:32:41, skipping insertion in model container [2020-07-01 10:32:41,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:32:41,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:32:40" (4/5) ... [2020-07-01 10:32:41,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793408d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:32:41, skipping insertion in model container [2020-07-01 10:32:41,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:32:41,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:32:41" (5/5) ... [2020-07-01 10:32:41,112 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:32:41,142 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:32:41,143 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:32:41,143 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:32:41,143 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:32:41,143 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:32:41,143 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:32:41,143 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:32:41,144 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:32:41,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:32:41,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:32:41,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:32:41,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:32:41,171 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:32:41,171 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:32:41,171 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:32:41,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:32:41,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:32:41,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:32:41,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:32:41,172 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:32:41,172 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:32:41,177 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L20-2: Formula: (let ((.cse0 (* v_ULTIMATE.start_main_~r~0_10 2))) (and (= v_ULTIMATE.start_main_~da~0_11 .cse0) (<= 0 v_ULTIMATE.start_main_~r~0_10) (= .cse0 v_ULTIMATE.start_main_~db~0_7))) InVars {} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_11, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_7, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_5, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~temp~0, ULTIMATE.start_main_~r~0] 4#L20-2true [2020-07-01 10:32:41,178 INFO L796 eck$LassoCheckResult]: Loop: 4#L20-2true [36] L20-2-->L20: Formula: (<= v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} AuxVars[] AssignedVars[] 5#L20true [40] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~db~0_4 v_ULTIMATE.start_main_~da~0_6) (= v_ULTIMATE.start_main_~da~0_6 (+ v_ULTIMATE.start_main_~db~0_5 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|) (= v_ULTIMATE.start_main_~temp~0_4 v_ULTIMATE.start_main_~da~0_7)) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_7, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_5} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_6, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_4, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_~temp~0] 4#L20-2true [2020-07-01 10:32:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:41,184 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 10:32:41,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:41,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268259812] [2020-07-01 10:32:41,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,268 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:41,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2117, now seen corresponding path program 1 times [2020-07-01 10:32:41,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:41,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091842847] [2020-07-01 10:32:41,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:41,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:41,285 INFO L82 PathProgramCache]: Analyzing trace with hash 77075, now seen corresponding path program 1 times [2020-07-01 10:32:41,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:41,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279231845] [2020-07-01 10:32:41,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:41,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:41,367 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:32:41,368 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:32:41,368 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:32:41,368 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:32:41,368 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:32:41,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:32:41,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:32:41,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:32:41,369 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:32:41,369 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:32:41,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:41,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:41,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:41,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:41,557 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:32:41,558 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:41,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:41,574 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:41,575 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/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:41,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:41,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:41,613 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/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:41,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:41,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:41,652 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/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:41,685 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:41,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:32:41,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:48,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:32:48,374 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:32:48,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:32:48,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:32:48,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:32:48,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:32:48,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:32:48,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:32:48,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:32:48,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:32:48,375 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:32:48,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:48,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:48,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:48,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:48,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:32:48,478 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,482 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 10:32:48,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:48,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:32:48,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:32:48,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,531 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 10:32:48,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:48,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:32:48,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:32:48,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,579 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 10:32:48,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:48,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:48,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:32:48,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:48,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,625 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 10:32:48,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:48,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:48,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:32:48,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:48,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 10:32:48,668 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,671 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 10:32:48,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,674 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 10:32:48,678 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 10:32:48,679 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 10:32:48,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,718 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 10:32:48,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,721 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 10:32:48,726 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 10:32:48,726 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 10:32:48,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,767 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 10:32:48,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:48,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,770 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 10:32:48,771 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 10:32:48,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:48,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,806 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 10:32:48,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:48,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:48,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:48,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:48,810 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 10:32:48,812 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 10:32:48,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:48,818 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:32:48,829 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 10:32:48,829 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:48,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:32:48,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:32:48,839 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:32:48,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~r~0 + 2*ULTIMATE.start_main_~db~0 f1 = 2*ULTIMATE.start_main_~da~0 - 2*ULTIMATE.start_main_~r~0 + 1 Supporting invariants [] [2020-07-01 10:32:48,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:32:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:32:48,927 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:32:48,928 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:32:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:32:48,942 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 10:32:48,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:32:48,961 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 10:32:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:32:49,207 INFO L98 LoopCannibalizer]: 8 predicates before loop cannibalization 8 predicates after loop cannibalization [2020-07-01 10:32:49,213 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 8 loop predicates [2020-07-01 10:32:49,215 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 10:32:49,337 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 14 transitions. Complement of second has 4 states. [2020-07-01 10:32:49,338 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 10:32:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:32:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-01 10:32:49,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:32:49,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:49,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:32:49,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:49,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:32:49,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:49,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. [2020-07-01 10:32:49,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:32:49,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 14 transitions. [2020-07-01 10:32:49,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:32:49,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:32:49,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 14 transitions. [2020-07-01 10:32:49,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:32:49,358 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-07-01 10:32:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 14 transitions. [2020-07-01 10:32:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-01 10:32:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 10:32:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 10:32:49,390 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 10:32:49,390 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 10:32:49,391 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:32:49,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 10:32:49,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:32:49,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:32:49,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:32:49,392 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:32:49,392 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:32:49,392 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L20-2: Formula: (let ((.cse0 (* v_ULTIMATE.start_main_~r~0_10 2))) (and (= v_ULTIMATE.start_main_~da~0_11 .cse0) (<= 0 v_ULTIMATE.start_main_~r~0_10) (= .cse0 v_ULTIMATE.start_main_~db~0_7))) InVars {} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_11, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~db~0=v_ULTIMATE.start_main_~db~0_7, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~temp~0=v_ULTIMATE.start_main_~temp~0_5, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~db~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~temp~0, ULTIMATE.start_main_~r~0] 55#L20-2 [36] L20-2-->L20: Formula: (<= v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} AuxVars[] AssignedVars[] 57#L20 [2020-07-01 10:32:49,393 INFO L796 eck$LassoCheckResult]: Loop: 57#L20 [44] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~da~0_1 (+ v_ULTIMATE.start_main_~da~0_2 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet1_2|)) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_2, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~da~0, ULTIMATE.start_main_#t~nondet1] 56#L20-2 [36] L20-2-->L20: Formula: (<= v_ULTIMATE.start_main_~r~0_9 v_ULTIMATE.start_main_~da~0_10) InVars {ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} OutVars{ULTIMATE.start_main_~da~0=v_ULTIMATE.start_main_~da~0_10, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_9} AuxVars[] AssignedVars[] 57#L20 [2020-07-01 10:32:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:49,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2485, now seen corresponding path program 1 times [2020-07-01 10:32:49,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:49,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924431757] [2020-07-01 10:32:49,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:49,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2361, now seen corresponding path program 1 times [2020-07-01 10:32:49,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:49,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603606812] [2020-07-01 10:32:49,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,411 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:49,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:49,412 INFO L82 PathProgramCache]: Analyzing trace with hash 2389485, now seen corresponding path program 1 times [2020-07-01 10:32:49,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:32:49,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335141079] [2020-07-01 10:32:49,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:32:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:32:49,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:32:49,441 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:32:49,441 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:32:49,441 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:32:49,442 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:32:49,442 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:32:49,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,442 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:32:49,442 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:32:49,442 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:32:49,442 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:32:49,442 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:32:49,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:49,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:49,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:49,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:49,519 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:32:49,519 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:49,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:49,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:49,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:49,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:49,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:49,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:49,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:49,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:32:49,612 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:32:49,644 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:32:49,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:32:49,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:32:50,012 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:32:50,015 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:32:50,015 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:32:50,015 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:32:50,015 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:32:50,015 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:32:50,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:32:50,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:32:50,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:32:50,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:32:50,016 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:32:50,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:50,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:50,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:50,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:32:50,076 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:32:50,076 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,080 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 10:32:50,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:50,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:50,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:50,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:50,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:32:50,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:32:50,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,136 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 10:32:50,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:50,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:50,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:50,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:50,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:50,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:32:50,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:50,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,174 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 10:32:50,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:50,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:50,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:50,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:50,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:32:50,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:32:50,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,215 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 10:32:50,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:32:50,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:32:50,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:32:50,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:32:50,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:32:50,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:32:50,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:32:50,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:32:50,225 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 10:32:50,226 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:32:50,228 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:32:50,228 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:32:50,228 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:32:50,229 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~da~0) = -1*ULTIMATE.start_main_~r~0 + 1*ULTIMATE.start_main_~da~0 Supporting invariants [] [2020-07-01 10:32:50,259 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:32:50,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:32:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:32:50,278 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:32:50,278 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:32:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:32:50,282 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:32:50,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:32:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:32:50,292 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:32:50,292 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 2 loop predicates [2020-07-01 10:32:50,292 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 10:32:50,315 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 10 states and 20 transitions. Complement of second has 4 states. [2020-07-01 10:32:50,316 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 10:32:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:32:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 10:32:50,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 10:32:50,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:50,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 10:32:50,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:50,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 10:32:50,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:32:50,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 20 transitions. [2020-07-01 10:32:50,321 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:32:50,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-07-01 10:32:50,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:32:50,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:32:50,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:32:50,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:32:50,321 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:32:50,321 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:32:50,321 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:32:50,322 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:32:50,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:32:50,322 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:32:50,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:32:50,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:32:50 BasicIcfg [2020-07-01 10:32:50,328 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:32:50,330 INFO L168 Benchmark]: Toolchain (without parser) took 9994.71 ms. Allocated memory was 649.6 MB in the beginning and 752.9 MB in the end (delta: 103.3 MB). Free memory was 561.7 MB in the beginning and 673.3 MB in the end (delta: -111.6 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:32:50,331 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:32:50,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.59 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 561.7 MB in the beginning and 653.3 MB in the end (delta: -91.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.04 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 651.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,333 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 ms. Allocated memory is still 690.0 MB. Free memory was 651.9 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,333 INFO L168 Benchmark]: RCFGBuilder took 206.20 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 636.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,334 INFO L168 Benchmark]: BlockEncodingV2 took 79.24 ms. Allocated memory is still 690.0 MB. Free memory was 636.2 MB in the beginning and 630.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,334 INFO L168 Benchmark]: TraceAbstraction took 144.57 ms. Allocated memory is still 690.0 MB. Free memory was 629.4 MB in the beginning and 621.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,335 INFO L168 Benchmark]: BuchiAutomizer took 9224.35 ms. Allocated memory was 690.0 MB in the beginning and 752.9 MB in the end (delta: 62.9 MB). Free memory was 621.4 MB in the beginning and 673.3 MB in the end (delta: -52.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:32:50,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.59 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 561.7 MB in the beginning and 653.3 MB in the end (delta: -91.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.04 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 651.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.86 ms. Allocated memory is still 690.0 MB. Free memory was 651.9 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 206.20 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 636.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.24 ms. Allocated memory is still 690.0 MB. Free memory was 636.2 MB in the beginning and 630.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.57 ms. Allocated memory is still 690.0 MB. Free memory was 629.4 MB in the beginning and 621.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 9224.35 ms. Allocated memory was 690.0 MB in the beginning and 752.9 MB in the end (delta: 62.9 MB). Free memory was 621.4 MB in the beginning and 673.3 MB in the end (delta: -52.0 MB). Peak memory consumption was 11.0 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, 3 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=3occurred 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has 2-nested ranking function (if -2 * r + 2 * db > 0 then 1 else 0), (if -2 * r + 2 * db > 0 then -2 * r + 2 * db else 2 * da + -2 * r + 1) and consists of 3 locations. One nondeterministic module has affine ranking function -1 * r + da and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 8.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 7.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:32:37.026 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_TbKR8v/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:32:50.772 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check