/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:46:36,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:46:36,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:46:36,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:46:36,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:46:36,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:46:36,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:46:36,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:46:36,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:46:36,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:46:36,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:46:36,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:46:36,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:46:36,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:46:36,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:46:36,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:46:36,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:46:36,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:46:36,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:46:36,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:46:36,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:46:36,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:46:36,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:46:36,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:46:37,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:46:37,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:46:37,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:46:37,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:46:37,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:46:37,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:46:37,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:46:37,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:46:37,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:46:37,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:46:37,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:46:37,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:46:37,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:46:37,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:46:37,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:46:37,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:46:37,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:46:37,010 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:46:37,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:46:37,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:46:37,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:46:37,025 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:46:37,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:46:37,026 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:46:37,026 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:46:37,026 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:46:37,026 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:46:37,026 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:46:37,027 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:46:37,027 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:46:37,027 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:46:37,027 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:46:37,027 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:37,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:46:37,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:46:37,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:46:37,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:46:37,028 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:46:37,028 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:46:37,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:46:37,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:46:37,029 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:46:37,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:46:37,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:46:37,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:46:37,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:46:37,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:46:37,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:46:37,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:46:37,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:46:37,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:46:37,211 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:46:37,212 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:46:37,316 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_nJOZ5U/tmp/193a20a889a94f5686dad946717511c0/FLAG6214fca2a [2020-07-01 11:46:37,646 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:46:37,647 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:46:37,654 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_nJOZ5U/tmp/193a20a889a94f5686dad946717511c0/FLAG6214fca2a [2020-07-01 11:46:38,047 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_nJOZ5U/tmp/193a20a889a94f5686dad946717511c0 [2020-07-01 11:46:38,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:46:38,060 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:46:38,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:46:38,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:46:38,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:46:38,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5059fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:46:38,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:46:38,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:46:38,329 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:46:38,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:46:38,359 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:46:38,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38 WrapperNode [2020-07-01 11:46:38,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:46:38,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:46:38,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:46:38,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:46:38,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:46:38,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:46:38,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:46:38,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:46:38,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:46:38,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:46:38,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:46:38,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:46:38,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:46:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:46:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:46:38,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:46:38,648 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 11:46:38,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:46:38 BoogieIcfgContainer [2020-07-01 11:46:38,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:46:38,652 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:46:38,652 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:46:38,655 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:46:38,655 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:46:38" (1/1) ... [2020-07-01 11:46:38,667 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-07-01 11:46:38,669 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:46:38,669 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:46:38,670 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:46:38,670 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:46:38,672 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:46:38,673 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:46:38,673 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:46:38,687 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:46:38,694 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:46:38,699 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:46:38,701 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:46:38,717 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-07-01 11:46:38,719 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:46:38,721 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:46:38,721 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:46:38,721 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:46:38,722 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:46:38,722 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:46:38,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:46:38 BasicIcfg [2020-07-01 11:46:38,722 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:46:38,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:46:38,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:46:38,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:46:38,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:46:38" (1/4) ... [2020-07-01 11:46:38,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8e37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (2/4) ... [2020-07-01 11:46:38,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8e37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:46:38" (3/4) ... [2020-07-01 11:46:38,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8e37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:46:38" (4/4) ... [2020-07-01 11:46:38,731 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:46:38,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:46:38,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:46:38,762 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:46:38,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:46:38,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:46:38,786 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:46:38,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:46:38,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:46:38,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:46:38,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:46:38,787 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:46:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:46:38,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:46:38,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:46:38,862 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:46:38,862 INFO L271 CegarLoopResult]: At program point L7-2(lines 7 10) the Hoare annotation is: true [2020-07-01 11:46:38,863 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-07-01 11:46:38,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:46:38 BasicIcfg [2020-07-01 11:46:38,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:46:38,872 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:46:38,872 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:46:38,875 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:46:38,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:46:38,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:46:38" (1/5) ... [2020-07-01 11:46:38,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23a105b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:46:38,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:46:38" (2/5) ... [2020-07-01 11:46:38,877 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23a105b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:46:38,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:46:38" (3/5) ... [2020-07-01 11:46:38,878 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23a105b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:46:38,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:46:38" (4/5) ... [2020-07-01 11:46:38,879 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23a105b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:46:38, skipping insertion in model container [2020-07-01 11:46:38,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:46:38,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:46:38" (5/5) ... [2020-07-01 11:46:38,880 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:46:38,908 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:46:38,908 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:46:38,909 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:46:38,909 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:46:38,909 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:46:38,909 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:46:38,909 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:46:38,909 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:46:38,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:46:38,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:46:38,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:46:38,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:46:38,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:46:38,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:46:38,937 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:46:38,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:46:38,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:46:38,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:46:38,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:46:38,938 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:46:38,938 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:46:38,943 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 5#L6-2true [2020-07-01 11:46:38,944 INFO L796 eck$LassoCheckResult]: Loop: 5#L6-2true [43] L6-2-->L7-2: Formula: (< 0 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 3#L7-2true [48] L7-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~c~0_9 (+ v_ULTIMATE.start_test_fun_~c~0_10 1)) (= v_ULTIMATE.start_test_fun_~x_8 (+ v_ULTIMATE.start_test_fun_~x_9 (- 1))) (<= v_ULTIMATE.start_test_fun_~y_6 0)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_9, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_10} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_9} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 5#L6-2true [2020-07-01 11:46:38,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:38,951 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2020-07-01 11:46:38,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:38,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501993911] [2020-07-01 11:46:38,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2342, now seen corresponding path program 1 times [2020-07-01 11:46:39,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:39,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456700765] [2020-07-01 11:46:39,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,054 INFO L82 PathProgramCache]: Analyzing trace with hash 65768, now seen corresponding path program 1 times [2020-07-01 11:46:39,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:39,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775395467] [2020-07-01 11:46:39,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,068 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,117 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:46:39,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:46:39,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:46:39,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:46:39,118 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:46:39,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:39,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:46:39,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:46:39,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:46:39,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:46:39,119 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:46:39,138 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 11:46:39,153 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 11:46:39,159 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 11:46:39,220 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:46:39,220 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:39,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:46:39,228 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:39,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:46:39,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:46:39,304 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:46:39,307 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:46:39,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:46:39,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:46:39,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:46:39,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:46:39,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:46:39,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:46:39,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:46:39,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:46:39,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:46:39,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:46:39,309 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 11:46:39,319 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 11:46:39,323 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 11:46:39,373 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:46:39,379 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:46:39,383 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 11:46:39,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:46:39,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:46:39,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:46:39,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:46:39,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:46:39,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:46:39,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:46:39,414 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:46:39,422 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:46:39,422 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/sandbox/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 11:46:39,434 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:46:39,434 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:46:39,435 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:46:39,436 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x) = 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-07-01 11:46:39,470 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:46:39,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:46:39,503 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:46:39,504 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:46:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:46:39,514 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:46:39,515 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:46:39,527 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 11:46:39,551 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:46:39,556 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 11:46:39,557 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:46:39,584 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:46:39,584 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 11:46:39,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:46:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:46:39,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:46:39,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:46:39,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:46:39,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:46:39,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:46:39,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:46:39,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:46:39,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:46:39,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 11:46:39,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:46:39,603 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:46:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 11:46:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:46:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:46:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:46:39,631 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:46:39,632 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:46:39,632 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:46:39,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:46:39,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:46:39,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:46:39,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:46:39,633 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:46:39,633 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:46:39,633 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 46#L6-2 [43] L6-2-->L7-2: Formula: (< 0 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 42#L7-2 [2020-07-01 11:46:39,634 INFO L796 eck$LassoCheckResult]: Loop: 42#L7-2 [35] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (< 0 v_ULTIMATE.start_test_fun_~y_5) (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~c~0] 42#L7-2 [2020-07-01 11:46:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2120, now seen corresponding path program 1 times [2020-07-01 11:46:39,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:39,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838356583] [2020-07-01 11:46:39,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,643 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,643 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-07-01 11:46:39,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:39,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391376166] [2020-07-01 11:46:39,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,650 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash 65755, now seen corresponding path program 1 times [2020-07-01 11:46:39,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:46:39,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039078157] [2020-07-01 11:46:39,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:46:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:46:39,662 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:46:39,678 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:46:39,678 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:46:39,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:46:39,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:46:39,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:46:39,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:39,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:46:39,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:46:39,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:46:39,679 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:46:39,679 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:46:39,680 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 11:46:39,688 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 11:46:39,723 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:46:39,723 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:46:39,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:46:39,727 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:46:39,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:46:39,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:46:39,800 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:46:39,802 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:46:39,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:46:39,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:46:39,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:46:39,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:46:39,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:46:39,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:46:39,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:46:39,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:46:39,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:46:39,804 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:46:39,805 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 11:46:39,811 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 11:46:39,838 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:46:39,838 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:46:39,842 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 11:46:39,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:46:39,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:46:39,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:46:39,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:46:39,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:46:39,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:46:39,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:46:39,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:46:39,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:46:39,853 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:46:39,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:46:39,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:46:39,858 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:46:39,859 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y) = 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-07-01 11:46:39,889 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:46:39,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:46:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:46:39,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:46:39,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:46:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:46:39,916 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:46:39,916 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:46:39,917 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 11:46:39,917 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:46:39,917 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 1 loop predicates [2020-07-01 11:46:39,918 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:46:39,926 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 16 transitions. Complement of second has 6 states. [2020-07-01 11:46:39,927 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 11:46:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:46:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-01 11:46:39,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:46:39,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:46:39,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:46:39,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:46:39,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-07-01 11:46:39,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:46:39,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 11:46:39,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:46:39,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:46:39,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:46:39,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:46:39,933 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:46:39,933 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:46:39,933 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:46:39,933 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:46:39,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:46:39,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:46:39,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:46:39,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:46:39 BasicIcfg [2020-07-01 11:46:39,939 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:46:39,942 INFO L168 Benchmark]: Toolchain (without parser) took 1880.97 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 436.4 MB in the beginning and 406.7 MB in the end (delta: 29.7 MB). Peak memory consumption was 81.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,942 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:46:39,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.20 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 436.4 MB in the beginning and 536.3 MB in the end (delta: -99.8 MB). Peak memory consumption was 29.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.01 ms. Allocated memory is still 566.2 MB. Free memory was 536.3 MB in the beginning and 534.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,944 INFO L168 Benchmark]: Boogie Preprocessor took 20.07 ms. Allocated memory is still 566.2 MB. Free memory was 534.0 MB in the beginning and 533.2 MB in the end (delta: 756.2 kB). Peak memory consumption was 756.2 kB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,945 INFO L168 Benchmark]: RCFGBuilder took 235.39 ms. Allocated memory is still 566.2 MB. Free memory was 533.2 MB in the beginning and 521.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,945 INFO L168 Benchmark]: BlockEncodingV2 took 70.32 ms. Allocated memory is still 566.2 MB. Free memory was 521.1 MB in the beginning and 515.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,946 INFO L168 Benchmark]: TraceAbstraction took 147.20 ms. Allocated memory is still 566.2 MB. Free memory was 514.7 MB in the beginning and 506.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,946 INFO L168 Benchmark]: BuchiAutomizer took 1067.81 ms. Allocated memory is still 566.2 MB. Free memory was 506.3 MB in the beginning and 406.7 MB in the end (delta: 99.7 MB). Peak memory consumption was 99.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:46:39,950 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 299.20 ms. Allocated memory was 514.9 MB in the beginning and 566.2 MB in the end (delta: 51.4 MB). Free memory was 436.4 MB in the beginning and 536.3 MB in the end (delta: -99.8 MB). Peak memory consumption was 29.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.01 ms. Allocated memory is still 566.2 MB. Free memory was 536.3 MB in the beginning and 534.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.07 ms. Allocated memory is still 566.2 MB. Free memory was 534.0 MB in the beginning and 533.2 MB in the end (delta: 756.2 kB). Peak memory consumption was 756.2 kB. Max. memory is 50.3 GB. * RCFGBuilder took 235.39 ms. Allocated memory is still 566.2 MB. Free memory was 533.2 MB in the beginning and 521.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.32 ms. Allocated memory is still 566.2 MB. Free memory was 521.1 MB in the beginning and 515.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.20 ms. Allocated memory is still 566.2 MB. Free memory was 514.7 MB in the beginning and 506.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1067.81 ms. Allocated memory is still 566.2 MB. Free memory was 506.3 MB in the beginning and 406.7 MB in the end (delta: 99.7 MB). Peak memory consumption was 99.7 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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 and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 3 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 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:46:34.667 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_nJOZ5U/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:46:40.600 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check