/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:29:51,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:29:51,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:29:51,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:29:51,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:29:51,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:29:51,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:29:51,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:29:51,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:29:51,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:29:51,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:29:51,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:29:51,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:29:51,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:29:51,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:29:51,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:29:51,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:29:51,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:29:51,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:29:51,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:29:51,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:29:51,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:29:51,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:29:51,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:29:51,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:29:51,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:29:51,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:29:51,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:29:51,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:29:51,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:29:51,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:29:51,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:29:51,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:29:51,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:29:51,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:29:51,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:29:51,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:29:51,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:29:51,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:29:51,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:29:51,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:29:51,677 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:29:51,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:29:51,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:29:51,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:29:51,693 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:29:51,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:29:51,693 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:29:51,693 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:29:51,694 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:29:51,694 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:29:51,694 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:29:51,694 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:29:51,694 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:29:51,694 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:29:51,695 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:29:51,695 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:51,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:29:51,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:29:51,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:29:51,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:29:51,696 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:29:51,696 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:29:51,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:29:51,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:29:51,697 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:29:51,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:29:51,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:29:51,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:29:51,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:29:51,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:29:51,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:29:51,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:29:51,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:29:51,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:29:51,877 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:29:51,878 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:29:51,945 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_NNjc47/tmp/fbb55a4dd3ba4e97a2f84d1c1efcf0a2/FLAGf7f52ce59 [2020-07-01 11:29:52,296 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:29:52,297 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:29:52,303 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_NNjc47/tmp/fbb55a4dd3ba4e97a2f84d1c1efcf0a2/FLAGf7f52ce59 [2020-07-01 11:29:52,692 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_NNjc47/tmp/fbb55a4dd3ba4e97a2f84d1c1efcf0a2 [2020-07-01 11:29:52,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:29:52,704 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:29:52,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:29:52,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:29:52,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:29:52,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:52,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13080565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52, skipping insertion in model container [2020-07-01 11:29:52,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:52,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:29:52,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:29:52,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:29:52,958 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:29:52,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:29:52,987 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:29:52,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52 WrapperNode [2020-07-01 11:29:52,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:29:52,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:29:52,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:29:52,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:29:52,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:29:53,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:29:53,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:29:53,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:29:53,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... [2020-07-01 11:29:53,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:29:53,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:29:53,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:29:53,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:29:53,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:29:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:29:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:29:53,261 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:29:53,261 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:29:53,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:29:53 BoogieIcfgContainer [2020-07-01 11:29:53,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:29:53,265 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:29:53,265 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:29:53,267 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:29:53,268 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:29:53" (1/1) ... [2020-07-01 11:29:53,281 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:29:53,282 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:29:53,283 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:29:53,283 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:29:53,284 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:29:53,285 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:29:53,286 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:29:53,286 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:29:53,300 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:29:53,313 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:29:53,317 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:29:53,319 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:29:53,326 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:29:53,328 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:29:53,330 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:29:53,330 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:29:53,334 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:29:53,334 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:29:53,335 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:29:53,335 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:29:53,335 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:29:53,335 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:29:53,335 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:29:53,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:29:53 BasicIcfg [2020-07-01 11:29:53,336 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:29:53,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:29:53,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:29:53,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:29:53,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:29:52" (1/4) ... [2020-07-01 11:29:53,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34712bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (2/4) ... [2020-07-01 11:29:53,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34712bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:29:53" (3/4) ... [2020-07-01 11:29:53,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34712bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:29:53" (4/4) ... [2020-07-01 11:29:53,345 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:29:53,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:29:53,363 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:29:53,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:29:53,400 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:29:53,400 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:29:53,400 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:29:53,400 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:29:53,401 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:29:53,401 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:29:53,401 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:29:53,401 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:29:53,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:29:53,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:29:53,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:29:53,474 INFO L271 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: true [2020-07-01 11:29:53,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:29:53,475 INFO L268 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2020-07-01 11:29:53,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:29:53 BasicIcfg [2020-07-01 11:29:53,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:29:53,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:29:53,484 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:29:53,489 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:29:53,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:29:53,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:29:52" (1/5) ... [2020-07-01 11:29:53,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@399a8a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:29:53,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:29:52" (2/5) ... [2020-07-01 11:29:53,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@399a8a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:29:53,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:29:53" (3/5) ... [2020-07-01 11:29:53,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@399a8a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:29:53,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:29:53" (4/5) ... [2020-07-01 11:29:53,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@399a8a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:29:53, skipping insertion in model container [2020-07-01 11:29:53,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:29:53,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:29:53" (5/5) ... [2020-07-01 11:29:53,495 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:29:53,523 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:29:53,523 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:29:53,523 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:29:53,524 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:29:53,524 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:29:53,524 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:29:53,524 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:29:53,525 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:29:53,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:29:53,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:53,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:29:53,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:29:53,550 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:29:53,550 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:29:53,550 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:29:53,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:29:53,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:53,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:29:53,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:29:53,551 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:29:53,551 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:29:53,556 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~v2~0_9) (<= 0 v_ULTIMATE.start_main_~n~0_6) (< 0 v_ULTIMATE.start_main_~m~0_8) (= v_ULTIMATE.start_main_~n~0_6 v_ULTIMATE.start_main_~v1~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~v1~0] 4#L19-2true [2020-07-01 11:29:53,557 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 5#L19true [37] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= (+ v_ULTIMATE.start_main_~v1~0_1 1) v_ULTIMATE.start_main_~v1~0_2)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~v1~0] 4#L19-2true [2020-07-01 11:29:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:53,563 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 11:29:53,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:53,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488443267] [2020-07-01 11:29:53,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,646 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:53,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:53,648 INFO L82 PathProgramCache]: Analyzing trace with hash 2114, now seen corresponding path program 1 times [2020-07-01 11:29:53,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:53,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859199529] [2020-07-01 11:29:53,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,663 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:53,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:53,665 INFO L82 PathProgramCache]: Analyzing trace with hash 77072, now seen corresponding path program 1 times [2020-07-01 11:29:53,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:53,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857521805] [2020-07-01 11:29:53,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:53,683 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:53,732 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:29:53,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:29:53,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:29:53,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:29:53,734 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:29:53,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:53,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:29:53,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:29:53,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:29:53,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:29:53,735 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:29:53,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,856 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:29:53,857 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:53,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:29:53,866 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:53,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:29:53,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:29:53,942 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:29:53,944 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:29:53,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:29:53,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:29:53,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:29:53,945 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:29:53,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:29:53,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:29:53,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:29:53,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:29:53,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:29:53,945 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:29:53,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:53,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,030 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:29:54,036 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:29:54,041 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 11:29:54,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:29:54,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:29:54,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:29:54,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:29:54,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:29:54,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:29:54,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:29:54,053 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:29:54,061 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:29:54,061 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:29:54,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:29:54,068 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:29:54,069 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:29:54,069 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] [2020-07-01 11:29:54,103 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:29:54,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:29:54,134 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:29:54,136 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:29:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:29:54,146 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:29:54,146 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:29:54,159 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 11:29:54,183 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:29:54,188 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 11:29:54,207 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:29:54,240 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 11 transitions. Complement of second has 4 states. [2020-07-01 11:29:54,241 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 11:29:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:29:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:29:54,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:29:54,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:54,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:29:54,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:54,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:29:54,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:54,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-07-01 11:29:54,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:54,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2020-07-01 11:29:54,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:29:54,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:29:54,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-01 11:29:54,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:29:54,260 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-01 11:29:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-01 11:29:54,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-01 11:29:54,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:29:54,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:29:54,288 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:29:54,289 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:29:54,289 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:29:54,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:29:54,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:54,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:29:54,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:29:54,290 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:29:54,290 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:29:54,291 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~v2~0_9) (<= 0 v_ULTIMATE.start_main_~n~0_6) (< 0 v_ULTIMATE.start_main_~m~0_8) (= v_ULTIMATE.start_main_~n~0_6 v_ULTIMATE.start_main_~v1~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~v1~0] 45#L19-2 [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 47#L19 [2020-07-01 11:29:54,291 INFO L796 eck$LassoCheckResult]: Loop: 47#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_5)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 46#L19-2 [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 47#L19 [2020-07-01 11:29:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2485, now seen corresponding path program 1 times [2020-07-01 11:29:54,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327728914] [2020-07-01 11:29:54,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,301 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash 2330, now seen corresponding path program 1 times [2020-07-01 11:29:54,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968912912] [2020-07-01 11:29:54,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2389454, now seen corresponding path program 1 times [2020-07-01 11:29:54,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034312952] [2020-07-01 11:29:54,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:29:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:29:54,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034312952] [2020-07-01 11:29:54,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:29:54,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 11:29:54,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758054979] [2020-07-01 11:29:54,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:29:54,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 11:29:54,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 11:29:54,369 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 11:29:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:29:54,378 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2020-07-01 11:29:54,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 11:29:54,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2020-07-01 11:29:54,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:54,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 10 transitions. [2020-07-01 11:29:54,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:29:54,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:29:54,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2020-07-01 11:29:54,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:29:54,382 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-07-01 11:29:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2020-07-01 11:29:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-01 11:29:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 11:29:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-07-01 11:29:54,384 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-07-01 11:29:54,384 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-07-01 11:29:54,384 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:29:54,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2020-07-01 11:29:54,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:29:54,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:29:54,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:29:54,385 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 11:29:54,385 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:29:54,386 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~v2~0_9) (<= 0 v_ULTIMATE.start_main_~n~0_6) (< 0 v_ULTIMATE.start_main_~m~0_8) (= v_ULTIMATE.start_main_~n~0_6 v_ULTIMATE.start_main_~v1~0_9)) InVars {} OutVars{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_~v2~0=v_ULTIMATE.start_main_~v2~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~v1~0] 69#L19-2 [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 70#L19 [37] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_1 (+ v_ULTIMATE.start_main_~v2~0_2 1)) (< v_ULTIMATE.start_main_~v2~0_2 v_ULTIMATE.start_main_~m~0_1) (= (+ v_ULTIMATE.start_main_~v1~0_1 1) v_ULTIMATE.start_main_~v1~0_2)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_2, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_1, ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~v1~0] 75#L19-2 [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 73#L19 [2020-07-01 11:29:54,386 INFO L796 eck$LassoCheckResult]: Loop: 73#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~v2~0_6 0) (>= v_ULTIMATE.start_main_~v2~0_7 v_ULTIMATE.start_main_~m~0_5)) InVars {ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{ULTIMATE.start_main_~v2~0=v_ULTIMATE.start_main_~v2~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~v2~0] 74#L19-2 [36] L19-2-->L19: Formula: (< 0 v_ULTIMATE.start_main_~v1~0_8) InVars {ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} OutVars{ULTIMATE.start_main_~v1~0=v_ULTIMATE.start_main_~v1~0_8} AuxVars[] AssignedVars[] 73#L19 [2020-07-01 11:29:54,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2389268, now seen corresponding path program 2 times [2020-07-01 11:29:54,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390526942] [2020-07-01 11:29:54,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,398 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash 2330, now seen corresponding path program 2 times [2020-07-01 11:29:54,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744742792] [2020-07-01 11:29:54,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,405 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1998879379, now seen corresponding path program 1 times [2020-07-01 11:29:54,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:29:54,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288510248] [2020-07-01 11:29:54,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:29:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:29:54,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:29:54,477 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:29:54,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:29:54,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:29:54,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:29:54,478 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:29:54,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:54,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:29:54,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:29:54,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:29:54,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:29:54,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:29:54,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,605 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:29:54,605 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:54,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:29:54,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:29:54,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:29:54,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:54,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:29:54,650 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:29:54,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:29:54,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:29:54,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:29:54,834 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:29:54,834 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:29:54,834 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:29:54,834 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:29:54,834 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:29:54,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:29:54,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:29:54,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:29:54,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:29:54,835 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:29:54,835 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:29:54,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:29:54,952 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:29:54,952 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 11:29:54,957 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 11:29:54,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:29:54,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:29:54,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:29:54,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:29:54,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:29:54,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:29:54,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:29:54,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 11:29:54,998 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 11:29:55,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:29:55,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:29:55,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:29:55,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:29:55,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:29:55,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:29:55,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:29:55,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 11:29:55,039 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 11:29:55,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:29:55,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:29:55,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:29:55,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:29:55,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:29:55,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:29:55,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:29:55,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 11:29:55,081 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 11:29:55,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:29:55,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:29:55,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:29:55,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:29:55,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:29:55,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:29:55,097 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:29:55,107 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:29:55,107 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/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 11:29:55,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:29:55,126 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:29:55,127 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:29:55,127 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0) = 1*ULTIMATE.start_main_~v2~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2020-07-01 11:29:55,161 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:29:55,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:29:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:29:55,212 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:29:55,212 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:29:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:29:55,227 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:29:55,227 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:29:55,249 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 11:29:55,300 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 11:29:55,300 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-07-01 11:29:55,300 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-07-01 11:29:55,435 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 45 states and 56 transitions. Complement of second has 26 states. [2020-07-01 11:29:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 11:29:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:29:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2020-07-01 11:29:55,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:29:55,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:55,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:29:55,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:55,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:29:55,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:29:55,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2020-07-01 11:29:55,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:29:55,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2020-07-01 11:29:55,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:29:55,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:29:55,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:29:55,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:29:55,446 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:29:55,447 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:29:55,447 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:29:55,447 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:29:55,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:29:55,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:29:55,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:29:55,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:29:55 BasicIcfg [2020-07-01 11:29:55,454 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:29:55,457 INFO L168 Benchmark]: Toolchain (without parser) took 2751.53 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 561.7 MB in the beginning and 400.7 MB in the end (delta: 161.0 MB). Peak memory consumption was 191.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,457 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 584.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:29:55,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.52 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 561.7 MB in the beginning and 643.3 MB in the end (delta: -81.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.97 ms. Allocated memory is still 680.0 MB. Free memory was 643.3 MB in the beginning and 640.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,459 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 680.0 MB. Free memory was 640.6 MB in the beginning and 639.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,459 INFO L168 Benchmark]: RCFGBuilder took 223.79 ms. Allocated memory is still 680.0 MB. Free memory was 639.3 MB in the beginning and 625.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,460 INFO L168 Benchmark]: BlockEncodingV2 took 71.03 ms. Allocated memory is still 680.0 MB. Free memory was 625.0 MB in the beginning and 618.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,460 INFO L168 Benchmark]: TraceAbstraction took 146.38 ms. Allocated memory is still 680.0 MB. Free memory was 618.5 MB in the beginning and 609.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,461 INFO L168 Benchmark]: BuchiAutomizer took 1969.54 ms. Allocated memory is still 680.0 MB. Free memory was 609.0 MB in the beginning and 400.7 MB in the end (delta: 208.3 MB). Peak memory consumption was 208.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:29:55,465 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, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 584.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 282.52 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 561.7 MB in the beginning and 643.3 MB in the end (delta: -81.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.97 ms. Allocated memory is still 680.0 MB. Free memory was 643.3 MB in the beginning and 640.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 680.0 MB. Free memory was 640.6 MB in the beginning and 639.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.79 ms. Allocated memory is still 680.0 MB. Free memory was 639.3 MB in the beginning and 625.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.03 ms. Allocated memory is still 680.0 MB. Free memory was 625.0 MB in the beginning and 618.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.38 ms. Allocated memory is still 680.0 MB. Free memory was 618.5 MB in the beginning and 609.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1969.54 ms. Allocated memory is still 680.0 MB. Free memory was 609.0 MB in the beginning and 400.7 MB in the end (delta: 208.3 MB). Peak memory consumption was 208.3 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: 18]: 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 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function v1 and consists of 3 locations. One nondeterministic module has affine ranking function v2 and consists of 8 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 18 SDslu, 11 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf92 smp100 dnf100 smp100 tf106 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 51ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:29:49.450 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_NNjc47/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:29:56.100 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check