/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:06:06,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:06:06,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:06:06,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:06:06,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:06:06,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:06:06,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:06:06,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:06:06,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:06:06,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:06:06,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:06:06,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:06:06,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:06:06,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:06:06,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:06:06,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:06:06,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:06:06,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:06:06,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:06:06,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:06:06,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:06:06,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:06:06,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:06:06,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:06:06,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:06:06,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:06:06,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:06:06,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:06:06,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:06:06,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:06:06,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:06:06,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:06:06,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:06:06,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:06:07,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:06:07,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:06:07,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:06:07,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:06:07,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:06:07,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:06:07,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:06:07,004 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:06:07,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:06:07,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:06:07,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:06:07,019 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:06:07,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:06:07,019 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:07,020 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:06:07,020 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:06:07,020 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:06:07,020 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:06:07,020 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:06:07,021 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:06:07,021 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:06:07,021 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:06:07,021 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:07,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:06:07,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:06:07,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:06:07,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:06:07,022 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:06:07,022 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:06:07,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:06:07,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:06:07,023 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:06:07,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:06:07,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:06:07,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:06:07,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:06:07,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:06:07,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:06:07,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:06:07,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:06:07,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:06:07,207 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:06:07,208 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:06:07,276 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YFvE8f/tmp/eee98ba7e4984013b43497ff201bf8cf/FLAG4289eb210 [2020-07-01 12:06:07,602 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:06:07,603 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:06:07,609 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YFvE8f/tmp/eee98ba7e4984013b43497ff201bf8cf/FLAG4289eb210 [2020-07-01 12:06:08,016 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_YFvE8f/tmp/eee98ba7e4984013b43497ff201bf8cf [2020-07-01 12:06:08,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:06:08,029 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:06:08,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:06:08,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:06:08,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f41977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:06:08,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:06:08,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,293 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:06:08,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,325 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:06:08,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08 WrapperNode [2020-07-01 12:06:08,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:06:08,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:06:08,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:06:08,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:06:08,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:06:08,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:06:08,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:06:08,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:06:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:06:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:06:08,620 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:06:08,621 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:06:08,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08 BoogieIcfgContainer [2020-07-01 12:06:08,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:06:08,625 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:06:08,625 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:06:08,627 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:06:08,628 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,640 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-07-01 12:06:08,642 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:06:08,642 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:06:08,643 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:06:08,643 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:08,645 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:06:08,646 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:06:08,646 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:06:08,661 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:06:08,676 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:06:08,680 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,682 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,702 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:06:08,705 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:06:08,706 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,706 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,706 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:06:08,707 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:06:08,707 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-07-01 12:06:08,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,708 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:06:08,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:06:08,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:06:08,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:06:08,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:06:08" (1/4) ... [2020-07-01 12:06:08,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6136b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/4) ... [2020-07-01 12:06:08,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6136b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/4) ... [2020-07-01 12:06:08,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6136b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/4) ... [2020-07-01 12:06:08,718 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,728 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:06:08,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:06:08,750 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:06:08,776 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,777 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:06:08,777 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,777 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,777 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,777 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:06:08,777 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,778 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:06:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:06:08,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:06:08,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:06:08,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:06:08,852 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-01 12:06:08,853 INFO L268 CegarLoopResult]: For program point L10-2(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:06:08,853 INFO L268 CegarLoopResult]: For program point L7(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:06:08,853 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 17) the Hoare annotation is: true [2020-07-01 12:06:08,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:06:08,862 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:06:08,862 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:06:08,866 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:06:08,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:06:08" (1/5) ... [2020-07-01 12:06:08,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8a588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/5) ... [2020-07-01 12:06:08,868 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8a588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/5) ... [2020-07-01 12:06:08,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8a588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/5) ... [2020-07-01 12:06:08,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8a588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08" (5/5) ... [2020-07-01 12:06:08,871 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,899 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,900 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:06:08,900 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,900 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,900 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,900 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:06:08,900 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,901 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:06:08,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:06:08,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:08,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,927 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,927 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:06:08,927 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:06:08,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:06:08,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:08,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,928 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,929 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:06:08,934 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 7#L6-2true [2020-07-01 12:06:08,934 INFO L796 eck$LassoCheckResult]: Loop: 7#L6-2true [48] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~x_4) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[] 5#L7true [36] L7-->L10-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 (- 1))) (< v_ULTIMATE.start_test_fun_~z_5 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 6#L10-2true [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 7#L6-2true [2020-07-01 12:06:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 12:06:08,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:08,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110150126] [2020-07-01 12:06:08,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,024 INFO L82 PathProgramCache]: Analyzing trace with hash 77074, now seen corresponding path program 1 times [2020-07-01 12:06:09,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387616143] [2020-07-01 12:06:09,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,039 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1983698, now seen corresponding path program 1 times [2020-07-01 12:06:09,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124948529] [2020-07-01 12:06:09,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,057 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,102 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,103 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,104 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:09,104 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,105 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,190 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,190 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,197 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:09,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,492 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:09,495 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:09,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,496 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,498 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 12:06:09,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,549 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,555 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:09,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:09,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:09,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:09,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:09,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:09,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:09,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:09,571 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:09,580 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:06:09,580 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/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:09,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:06:09,587 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:09,588 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~x - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-07-01 12:06:09,622 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:06:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,664 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,665 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,677 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,677 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:06:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,804 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,811 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 12:06:09,817 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 4 loop predicates [2020-07-01 12:06:09,818 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 12:06:09,903 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 20 states and 32 transitions. Complement of second has 7 states. [2020-07-01 12:06:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:06:09,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:06:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-01 12:06:09,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:06:09,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:06:09,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:06:09,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 32 transitions. [2020-07-01 12:06:09,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:09,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 21 transitions. [2020-07-01 12:06:09,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:06:09,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:06:09,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2020-07-01 12:06:09,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:06:09,926 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-07-01 12:06:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2020-07-01 12:06:09,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2020-07-01 12:06:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:06:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2020-07-01 12:06:09,954 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-07-01 12:06:09,954 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-07-01 12:06:09,955 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:06:09,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2020-07-01 12:06:09,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:09,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:09,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:09,956 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:06:09,956 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:06:09,957 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 79#L6-2 [49] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[] 80#L7 [2020-07-01 12:06:09,957 INFO L796 eck$LassoCheckResult]: Loop: 80#L7 [46] L7-->L10: Formula: (>= v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 74#L10 [32] L10-->L10-2: Formula: (and (= v_ULTIMATE.start_test_fun_~y_5 (+ v_ULTIMATE.start_test_fun_~y_6 (- 1))) (< v_ULTIMATE.start_test_fun_~z_7 v_ULTIMATE.start_test_fun_~y_6)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_7} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y] 75#L10-2 [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 83#L6-2 [49] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_4) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[] 80#L7 [2020-07-01 12:06:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2064, now seen corresponding path program 1 times [2020-07-01 12:06:09,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486114249] [2020-07-01 12:06:09,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,968 INFO L82 PathProgramCache]: Analyzing trace with hash 2325917, now seen corresponding path program 1 times [2020-07-01 12:06:09,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777787761] [2020-07-01 12:06:09,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1907549740, now seen corresponding path program 1 times [2020-07-01 12:06:09,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053121065] [2020-07-01 12:06:09,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,994 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:10,023 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:10,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:10,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:10,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:10,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:10,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:10,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:10,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:06:10,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:10,025 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:10,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:10,029 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 12:06:10,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:10,066 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 12:06:10,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,072 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:06:10,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:10,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,141 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] 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 12:06:10,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,197 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:10,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,688 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:10,691 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:10,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:10,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:10,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:10,692 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:10,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:10,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:10,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:06:10,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:10,692 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:10,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:10,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:10,743 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:10,743 INFO L489 LassoAnalysis]: Using template 'affine'. 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 12:06:10,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:10,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:10,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:10,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:10,753 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 12:06:10,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:10,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:10,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:10,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:10,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:10,798 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:06:10,798 INFO L444 ModelExtractionUtils]: 2 out of 5 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 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 12:06:10,801 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:10,801 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:06:10,802 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:10,802 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~y) = -1*ULTIMATE.start_test_fun_~z + 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-07-01 12:06:10,832 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:06:10,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:10,854 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:06:10,854 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:10,861 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:10,861 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:06:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:10,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:10,877 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:10,905 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:06:10,905 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:06:10,905 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 19 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-07-01 12:06:10,966 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 19 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 73 states and 111 transitions. Complement of second has 18 states. [2020-07-01 12:06:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:06:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:06:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-07-01 12:06:10,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 12:06:10,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:10,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:06:10,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:10,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 12:06:10,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:10,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 111 transitions. [2020-07-01 12:06:10,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:10,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2020-07-01 12:06:10,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:06:10,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:06:10,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:06:10,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:06:10,976 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:10,976 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:10,976 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:10,976 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:06:10,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:06:10,977 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:10,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:06:10,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:10 BasicIcfg [2020-07-01 12:06:10,983 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:06:10,985 INFO L168 Benchmark]: Toolchain (without parser) took 2955.91 ms. Allocated memory was 514.9 MB in the beginning and 589.8 MB in the end (delta: 75.0 MB). Free memory was 438.5 MB in the beginning and 502.0 MB in the end (delta: -63.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,986 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:06:10,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.81 ms. Allocated memory was 514.9 MB in the beginning and 562.0 MB in the end (delta: 47.2 MB). Free memory was 438.5 MB in the beginning and 529.6 MB in the end (delta: -91.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 562.0 MB. Free memory was 529.6 MB in the beginning and 528.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,988 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 ms. Allocated memory is still 562.0 MB. Free memory was 528.2 MB in the beginning and 526.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,988 INFO L168 Benchmark]: RCFGBuilder took 242.55 ms. Allocated memory is still 562.0 MB. Free memory was 526.9 MB in the beginning and 513.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,989 INFO L168 Benchmark]: BlockEncodingV2 took 82.97 ms. Allocated memory is still 562.0 MB. Free memory was 513.5 MB in the beginning and 507.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,989 INFO L168 Benchmark]: TraceAbstraction took 152.64 ms. Allocated memory is still 562.0 MB. Free memory was 506.8 MB in the beginning and 498.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,990 INFO L168 Benchmark]: BuchiAutomizer took 2120.43 ms. Allocated memory was 562.0 MB in the beginning and 589.8 MB in the end (delta: 27.8 MB). Free memory was 498.0 MB in the beginning and 502.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,994 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.81 ms. Allocated memory was 514.9 MB in the beginning and 562.0 MB in the end (delta: 47.2 MB). Free memory was 438.5 MB in the beginning and 529.6 MB in the end (delta: -91.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 562.0 MB. Free memory was 529.6 MB in the beginning and 528.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.23 ms. Allocated memory is still 562.0 MB. Free memory was 528.2 MB in the beginning and 526.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 242.55 ms. Allocated memory is still 562.0 MB. Free memory was 526.9 MB in the beginning and 513.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 82.97 ms. Allocated memory is still 562.0 MB. Free memory was 513.5 MB in the beginning and 507.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.64 ms. Allocated memory is still 562.0 MB. Free memory was 506.8 MB in the beginning and 498.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2120.43 ms. Allocated memory was 562.0 MB in the beginning and 589.8 MB in the end (delta: 27.8 MB). Free memory was 498.0 MB in the beginning and 502.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 affine ranking function x + -1 * z and consists of 5 locations. One nondeterministic module has affine ranking function -1 * z + y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 36 SDslu, 7 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:06:04.758 ----------------------------------------------- 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_YFvE8f/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:06:11.428 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check