/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 12:07:37,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:07:37,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:07:37,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:07:37,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:07:37,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:07:37,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:07:37,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:07:37,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:07:37,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:07:37,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:07:37,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:07:37,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:07:37,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:07:37,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:07:37,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:07:37,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:07:37,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:07:37,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:07:37,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:07:37,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:07:37,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:07:37,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:07:37,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:07:37,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:07:37,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:07:37,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:07:37,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:07:37,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:07:37,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:07:37,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:07:37,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:07:37,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:07:37,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:07:37,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:07:37,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:07:37,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:07:37,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:07:37,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:07:37,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:07:37,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:07:37,396 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:07:37,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:07:37,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:07:37,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:07:37,412 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:07:37,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:07:37,413 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:07:37,413 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:07:37,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:07:37,413 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:07:37,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:07:37,413 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:07:37,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:07:37,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:07:37,414 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:07:37,414 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:37,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:07:37,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:07:37,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:07:37,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:07:37,415 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:07:37,415 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:07:37,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:07:37,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:07:37,416 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:07:37,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:07:37,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:07:37,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:07:37,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:07:37,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:07:37,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:07:37,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:07:37,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:07:37,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:07:37,603 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:07:37,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:07:37,667 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Q2Q3yu/tmp/8a49953b67704d46b62da763545281c0/FLAG900e32d4f [2020-07-01 12:07:38,005 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:07:38,006 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:07:38,013 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Q2Q3yu/tmp/8a49953b67704d46b62da763545281c0/FLAG900e32d4f [2020-07-01 12:07:38,411 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_Q2Q3yu/tmp/8a49953b67704d46b62da763545281c0 [2020-07-01 12:07:38,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:07:38,423 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:07:38,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:07:38,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:07:38,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:07:38,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3deac49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38, skipping insertion in model container [2020-07-01 12:07:38,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:07:38,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:07:38,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:07:38,685 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:07:38,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:07:38,716 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:07:38,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38 WrapperNode [2020-07-01 12:07:38,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:07:38,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:07:38,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:07:38,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:07:38,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:07:38,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:07:38,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:07:38,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:07:38,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:07:38,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:07:38,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:07:38,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:07:38,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (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 12:07:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:07:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:07:39,017 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:07:39,017 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:07:39,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39 BoogieIcfgContainer [2020-07-01 12:07:39,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:07:39,021 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:07:39,022 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:07:39,024 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:07:39,025 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (1/1) ... [2020-07-01 12:07:39,038 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 11 edges [2020-07-01 12:07:39,039 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:07:39,040 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:07:39,041 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:07:39,041 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:07:39,043 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:07:39,044 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:07:39,044 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:07:39,059 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:07:39,066 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:07:39,072 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:07:39,074 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:07:39,091 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:07:39,093 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:07:39,095 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:07:39,095 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:07:39,095 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:07:39,095 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:07:39,096 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-07-01 12:07:39,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39 BasicIcfg [2020-07-01 12:07:39,096 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:07:39,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:07:39,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:07:39,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:07:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:07:38" (1/4) ... [2020-07-01 12:07:39,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f193dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (2/4) ... [2020-07-01 12:07:39,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f193dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (3/4) ... [2020-07-01 12:07:39,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f193dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39" (4/4) ... [2020-07-01 12:07:39,105 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:07:39,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:07:39,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:07:39,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:07:39,164 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:07:39,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:07:39,164 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:07:39,165 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:07:39,165 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:07:39,165 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:07:39,165 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:07:39,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:07:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 12:07:39,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:07:39,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 12:07:39,242 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:07:39,242 INFO L268 CegarLoopResult]: For program point L7(lines 7 11) no Hoare annotation was computed. [2020-07-01 12:07:39,243 INFO L268 CegarLoopResult]: For program point L7-2(lines 7 11) no Hoare annotation was computed. [2020-07-01 12:07:39,243 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-07-01 12:07:39,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39 BasicIcfg [2020-07-01 12:07:39,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:07:39,252 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:07:39,252 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:07:39,256 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:07:39,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:07:38" (1/5) ... [2020-07-01 12:07:39,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b74daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (2/5) ... [2020-07-01 12:07:39,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b74daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (3/5) ... [2020-07-01 12:07:39,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b74daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39" (4/5) ... [2020-07-01 12:07:39,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b74daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39" (5/5) ... [2020-07-01 12:07:39,261 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:07:39,288 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:07:39,289 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:07:39,289 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:07:39,289 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:07:39,289 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:07:39,289 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:07:39,289 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:07:39,289 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:07:39,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:07:39,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:39,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:39,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:39,315 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:07:39,315 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:39,315 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:07:39,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:07:39,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:39,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:39,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:39,316 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:07:39,316 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:39,321 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [28] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 6#L6-2true [2020-07-01 12:07:39,322 INFO L796 eck$LassoCheckResult]: Loop: 6#L6-2true [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 5#L7true [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 3#L7-2true [27] L7-2-->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] 6#L6-2true [2020-07-01 12:07:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-07-01 12:07:39,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567670358] [2020-07-01 12:07:39,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,410 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash 66584, now seen corresponding path program 1 times [2020-07-01 12:07:39,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656829644] [2020-07-01 12:07:39,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,429 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1794462, now seen corresponding path program 1 times [2020-07-01 12:07:39,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382525216] [2020-07-01 12:07:39,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,449 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,503 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:39,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:39,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:39,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:39,504 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:07:39,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:39,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:39,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:07:39,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:39,506 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:39,524 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 12:07:39,534 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 12:07:39,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:39,607 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 12:07:39,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:39,615 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 12:07:39,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:39,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:39,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:07:39,675 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:39,709 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:39,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:40,021 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:07:40,023 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:40,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:40,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:40,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:40,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:07:40,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:40,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:40,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:07:40,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:40,083 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:40,085 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 12:07:40,090 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 12:07:40,149 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:40,155 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,160 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 12:07:40,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:40,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:40,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:40,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:40,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:40,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:40,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:40,171 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,204 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 12:07:40,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:40,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:40,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:40,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:40,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:40,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:40,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:40,213 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:07:40,219 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:07:40,219 INFO L444 ModelExtractionUtils]: 1 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 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 12:07:40,225 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:07:40,226 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:07:40,226 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:07:40,227 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~x) = -2*ULTIMATE.start_test_fun_~z + 2*ULTIMATE.start_test_fun_~x + 1 Supporting invariants [] [2020-07-01 12:07:40,260 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:07:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,303 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,305 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,317 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,318 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,352 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 12:07:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,398 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,398 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,399 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:07:40,405 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 12:07:40,406 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-07-01 12:07:40,444 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-07-01 12:07:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:07:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:07:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-01 12:07:40,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:07:40,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:07:40,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:07:40,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-07-01 12:07:40,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:40,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2020-07-01 12:07:40,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:07:40,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:07:40,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-07-01 12:07:40,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:07:40,469 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 12:07:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-07-01 12:07:40,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-07-01 12:07:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-01 12:07:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-07-01 12:07:40,498 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-07-01 12:07:40,498 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-07-01 12:07:40,498 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:07:40,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-07-01 12:07:40,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:40,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:40,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:40,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:07:40,500 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:40,501 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY [28] 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] 64#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 65#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 58#L7-2 [2020-07-01 12:07:40,501 INFO L796 eck$LassoCheckResult]: Loop: 58#L7-2 [27] L7-2-->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] 59#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 67#L7 [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 58#L7-2 [2020-07-01 12:07:40,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,501 INFO L82 PathProgramCache]: Analyzing trace with hash 57875, now seen corresponding path program 1 times [2020-07-01 12:07:40,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219079672] [2020-07-01 12:07:40,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,514 INFO L82 PathProgramCache]: Analyzing trace with hash 56924, now seen corresponding path program 2 times [2020-07-01 12:07:40,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617136077] [2020-07-01 12:07:40,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,523 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1724181258, now seen corresponding path program 1 times [2020-07-01 12:07:40,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125743110] [2020-07-01 12:07:40,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,540 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,560 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:40,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:40,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:40,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:40,561 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:07:40,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:40,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:40,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:40,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:07:40,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:40,562 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:40,563 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 12:07:40,567 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 12:07:40,609 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:40,610 INFO L404 LassoAnalysis]: Checking for nontermination... 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 12:07:40,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:40,613 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:40,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:40,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:40,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:07:40,666 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:40,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:40,699 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:40,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:40,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:41,051 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:07:41,054 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:41,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:41,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:41,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:41,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:07:41,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:41,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:41,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:07:41,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:41,055 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:41,057 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 12:07:41,065 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 12:07:41,112 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:41,113 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,117 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 12:07:41,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:41,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:41,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:41,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:41,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:41,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:41,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:41,124 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,157 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 12:07:41,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:41,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:41,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:41,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:41,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:41,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:41,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:41,170 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:07:41,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:07:41,179 INFO L444 ModelExtractionUtils]: 1 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 12:07:41,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:07:41,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:07:41,185 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:07:41,185 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_~x) = -2*ULTIMATE.start_test_fun_~z + 2*ULTIMATE.start_test_fun_~x + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,216 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:07:41,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:41,241 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:07:41,242 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:41,247 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:41,248 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:07:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:41,254 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:41,255 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:41,309 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:07:41,310 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 12:07:41,310 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 12:07:41,329 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 17 transitions. Complement of second has 4 states. [2020-07-01 12:07:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:07:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:07:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 12:07:41,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 12:07:41,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:41,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:07:41,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:41,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 12:07:41,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:41,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2020-07-01 12:07:41,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 12:07:41,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 17 transitions. [2020-07-01 12:07:41,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:07:41,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:07:41,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-07-01 12:07:41,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:07:41,335 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-07-01 12:07:41,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-07-01 12:07:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2020-07-01 12:07:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 12:07:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-07-01 12:07:41,336 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-01 12:07:41,337 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-01 12:07:41,337 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:07:41,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-07-01 12:07:41,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 12:07:41,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:41,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:41,338 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:07:41,338 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:41,339 INFO L794 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY [28] 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] 132#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 133#L7 [2020-07-01 12:07:41,339 INFO L796 eck$LassoCheckResult]: Loop: 133#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 127#L7-2 [27] L7-2-->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] 129#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 133#L7 [2020-07-01 12:07:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:41,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 1 times [2020-07-01 12:07:41,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:41,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800945701] [2020-07-01 12:07:41,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,348 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:41,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:41,349 INFO L82 PathProgramCache]: Analyzing trace with hash 58534, now seen corresponding path program 1 times [2020-07-01 12:07:41,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:41,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907683752] [2020-07-01 12:07:41,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:41,358 INFO L82 PathProgramCache]: Analyzing trace with hash 55618749, now seen corresponding path program 1 times [2020-07-01 12:07:41,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:41,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435886342] [2020-07-01 12:07:41,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:41,370 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:41,395 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:41,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:41,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:41,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:41,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:07:41,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:41,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:41,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:41,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:07:41,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:41,396 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:41,397 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 12:07:41,403 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 12:07:41,469 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:41,469 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:41,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:41,475 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:41,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:41,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:41,536 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:07:41,537 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:41,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:41,577 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:41,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:41,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:41,915 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:07:41,918 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:41,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:41,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:41,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:41,919 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:07:41,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:41,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:41,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:07:41,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:41,919 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:41,921 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 12:07:41,924 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 12:07:41,962 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:41,962 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:41,966 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 12:07:41,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:41,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:41,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:41,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:41,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:41,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:41,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:41,972 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:42,005 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 12:07:42,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:42,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:42,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:42,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:42,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:42,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:42,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:42,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:07:42,017 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:07:42,017 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:42,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:07:42,022 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:07:42,022 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:07:42,022 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 12:07:42,052 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:07:42,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:42,072 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:07:42,072 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:42,078 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:42,079 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:42,091 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 12:07:42,105 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:07:42,105 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 12:07:42,105 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-01 12:07:42,133 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 6 states. [2020-07-01 12:07:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:07:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:07:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-01 12:07:42,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 12:07:42,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:42,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:07:42,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:42,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:07:42,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:42,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-07-01 12:07:42,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-01 12:07:42,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 15 transitions. [2020-07-01 12:07:42,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:07:42,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:07:42,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-07-01 12:07:42,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:07:42,139 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-01 12:07:42,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-07-01 12:07:42,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-07-01 12:07:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-01 12:07:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-07-01 12:07:42,141 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-07-01 12:07:42,141 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-07-01 12:07:42,141 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:07:42,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-07-01 12:07:42,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 12:07:42,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:42,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:42,142 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:07:42,142 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2020-07-01 12:07:42,156 INFO L794 eck$LassoCheckResult]: Stem: 193#ULTIMATE.startENTRY [28] 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] 194#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 195#L7 [2020-07-01 12:07:42,157 INFO L796 eck$LassoCheckResult]: Loop: 195#L7 [29] L7-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 1)) (< v_ULTIMATE.start_test_fun_~x_6 v_ULTIMATE.start_test_fun_~z_3)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 190#L7-2 [27] L7-2-->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] 191#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 196#L7 [39] L7-->L7-2: Formula: (and (>= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~z_5) (= v_ULTIMATE.start_test_fun_~z_4 (+ v_ULTIMATE.start_test_fun_~z_5 1))) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_5} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~z] 197#L7-2 [27] L7-2-->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] 198#L6-2 [37] L6-2-->L7: Formula: (< v_ULTIMATE.start_test_fun_~x_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_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 195#L7 [2020-07-01 12:07:42,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:42,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 2 times [2020-07-01 12:07:42,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:42,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256780416] [2020-07-01 12:07:42,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:42,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1743824747, now seen corresponding path program 1 times [2020-07-01 12:07:42,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:42,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204981917] [2020-07-01 12:07:42,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,180 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash -919186444, now seen corresponding path program 2 times [2020-07-01 12:07:42,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:42,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129776829] [2020-07-01 12:07:42,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:42,201 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:42,248 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:42,248 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:42,248 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:42,248 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:42,248 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:07:42,248 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:42,249 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:42,249 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:42,249 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:07:42,249 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:42,249 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:42,250 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 12:07:42,263 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 12:07:42,316 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:42,317 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:42,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:42,319 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:42,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:42,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:42,889 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:07:42,891 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:42,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:42,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:42,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:42,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:07:42,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:42,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:42,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:42,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:07:42,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:42,892 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:42,894 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 12:07:42,909 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 12:07:42,963 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:42,964 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:42,966 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 12:07:42,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:42,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:42,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:42,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:42,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:42,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:42,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:42,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:07:42,978 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:07:42,978 INFO L444 ModelExtractionUtils]: 1 out of 5 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 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:42,983 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:07:42,983 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:07:42,983 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:07:42,983 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~y) = -1*ULTIMATE.start_test_fun_~x + 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-07-01 12:07:43,013 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:07:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:43,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:07:43,030 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:43,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:43,036 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:43,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:07:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:43,069 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:43,070 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:43,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:43,080 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:43,083 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:07:43,083 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 12:07:43,083 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-07-01 12:07:43,118 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 25 states and 31 transitions. Complement of second has 9 states. [2020-07-01 12:07:43,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:07:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:07:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-07-01 12:07:43,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:07:43,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:43,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 8 letters. Loop has 6 letters. [2020-07-01 12:07:43,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:43,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 12 letters. [2020-07-01 12:07:43,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:43,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2020-07-01 12:07:43,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:07:43,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2020-07-01 12:07:43,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:07:43,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:07:43,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:07:43,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:07:43,124 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:07:43,124 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:07:43,124 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:07:43,125 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:07:43,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:07:43,125 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:07:43,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:07:43,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:43 BasicIcfg [2020-07-01 12:07:43,131 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:07:43,133 INFO L168 Benchmark]: Toolchain (without parser) took 4709.24 ms. Allocated memory was 649.6 MB in the beginning and 755.0 MB in the end (delta: 105.4 MB). Free memory was 561.4 MB in the beginning and 630.4 MB in the end (delta: -69.0 MB). Peak memory consumption was 36.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,134 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:07:43,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.42 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.4 MB in the beginning and 653.0 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.62 ms. Allocated memory is still 690.5 MB. Free memory was 653.0 MB in the beginning and 651.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,136 INFO L168 Benchmark]: Boogie Preprocessor took 20.36 ms. Allocated memory is still 690.5 MB. Free memory was 651.9 MB in the beginning and 650.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,136 INFO L168 Benchmark]: RCFGBuilder took 247.29 ms. Allocated memory is still 690.5 MB. Free memory was 650.9 MB in the beginning and 635.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,137 INFO L168 Benchmark]: BlockEncodingV2 took 75.04 ms. Allocated memory is still 690.5 MB. Free memory was 635.2 MB in the beginning and 630.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,137 INFO L168 Benchmark]: TraceAbstraction took 154.19 ms. Allocated memory is still 690.5 MB. Free memory was 629.8 MB in the beginning and 621.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,138 INFO L168 Benchmark]: BuchiAutomizer took 3878.65 ms. Allocated memory was 690.5 MB in the beginning and 755.0 MB in the end (delta: 64.5 MB). Free memory was 621.2 MB in the beginning and 630.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 55.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:43,142 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 292.42 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 561.4 MB in the beginning and 653.0 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.62 ms. Allocated memory is still 690.5 MB. Free memory was 653.0 MB in the beginning and 651.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.36 ms. Allocated memory is still 690.5 MB. Free memory was 651.9 MB in the beginning and 650.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 247.29 ms. Allocated memory is still 690.5 MB. Free memory was 650.9 MB in the beginning and 635.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.04 ms. Allocated memory is still 690.5 MB. Free memory was 635.2 MB in the beginning and 630.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.19 ms. Allocated memory is still 690.5 MB. Free memory was 629.8 MB in the beginning and 621.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3878.65 ms. Allocated memory was 690.5 MB in the beginning and 755.0 MB in the end (delta: 64.5 MB). Free memory was 621.2 MB in the beginning and 630.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 55.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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 4 terminating modules (0 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * x + z and consists of 3 locations. One nondeterministic module has affine ranking function -1 * x + y and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 21 SDtfs, 31 SDslu, 14 SDs, 0 SdLazy, 44 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp74 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp95 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:07:35.178 ----------------------------------------------- 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_Q2Q3yu/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:07:43.575 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check