/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:37:06,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:37:06,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:37:06,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:37:06,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:37:06,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:37:06,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:37:06,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:37:06,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:37:06,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:37:06,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:37:06,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:37:06,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:37:06,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:37:06,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:37:06,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:37:06,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:37:06,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:37:06,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:37:06,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:37:06,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:37:06,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:37:06,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:37:06,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:37:06,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:37:06,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:37:06,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:37:06,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:37:06,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:37:06,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:37:06,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:37:06,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:37:06,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:37:06,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:37:06,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:37:06,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:37:06,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:37:06,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:37:06,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:37:06,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:37:06,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:37:06,705 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:37:06,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:37:06,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:37:06,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:37:06,721 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:37:06,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:37:06,722 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:37:06,722 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:37:06,722 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:37:06,722 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:37:06,723 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:06,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:37:06,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:37:06,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:37:06,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:37:06,724 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:37:06,724 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:37:06,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:37:06,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:37:06,725 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:37:06,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:37:06,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:37:06,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:37:06,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:37:06,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:37:06,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:37:06,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:37:06,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:37:06,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:37:06,914 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:37:06,915 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:37:06,980 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_0rdvAH/tmp/21df3db82c4e4ffcab2bb96e0a518bbc/FLAG5d2777515 [2020-07-01 12:37:07,310 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:37:07,311 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:37:07,317 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_0rdvAH/tmp/21df3db82c4e4ffcab2bb96e0a518bbc/FLAG5d2777515 [2020-07-01 12:37:07,723 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_0rdvAH/tmp/21df3db82c4e4ffcab2bb96e0a518bbc [2020-07-01 12:37:07,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:37:07,736 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:37:07,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:37:07,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:37:07,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:37:07,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:37:07" (1/1) ... [2020-07-01 12:37:07,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fd4af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:07, skipping insertion in model container [2020-07-01 12:37:07,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:37:07" (1/1) ... [2020-07-01 12:37:07,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:37:07,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:37:07,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:37:07,992 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:37:08,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:37:08,022 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:37:08,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08 WrapperNode [2020-07-01 12:37:08,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:37:08,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:37:08,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:37:08,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:37:08,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:37:08,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:37:08,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:37:08,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:37:08,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:37:08,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:37:08,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:37:08,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:37:08,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:37:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:37:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:37:08,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:37:08,308 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:37:08,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:37:08 BoogieIcfgContainer [2020-07-01 12:37:08,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:37:08,312 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:37:08,312 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:37:08,314 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:37:08,315 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:37:08" (1/1) ... [2020-07-01 12:37:08,328 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-07-01 12:37:08,330 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:37:08,331 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:37:08,331 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:37:08,332 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:37:08,333 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:37:08,334 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:37:08,334 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:37:08,349 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:37:08,363 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:37:08,368 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:37:08,369 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:37:08,384 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:37:08,386 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:37:08,388 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:37:08,388 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:37:08,388 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:37:08,389 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:37:08,389 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-07-01 12:37:08,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:37:08 BasicIcfg [2020-07-01 12:37:08,390 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:37:08,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:37:08,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:37:08,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:37:08,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:37:07" (1/4) ... [2020-07-01 12:37:08,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf865b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (2/4) ... [2020-07-01 12:37:08,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf865b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:37:08" (3/4) ... [2020-07-01 12:37:08,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf865b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:37:08" (4/4) ... [2020-07-01 12:37:08,400 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:37:08,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:37:08,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:37:08,435 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:37:08,460 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:37:08,461 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:37:08,461 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:37:08,461 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:37:08,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:37:08,462 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:37:08,462 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:37:08,462 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:37:08,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:37:08,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:37:08,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:37:08,551 INFO L268 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-07-01 12:37:08,551 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:37:08,551 INFO L268 CegarLoopResult]: For program point L15-2(lines 12 20) no Hoare annotation was computed. [2020-07-01 12:37:08,551 INFO L268 CegarLoopResult]: For program point L12(lines 12 20) no Hoare annotation was computed. [2020-07-01 12:37:08,552 INFO L271 CegarLoopResult]: At program point L11-2(lines 11 22) the Hoare annotation is: true [2020-07-01 12:37:08,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:37:08 BasicIcfg [2020-07-01 12:37:08,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:37:08,561 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:37:08,561 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:37:08,564 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:37:08,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:37:08,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:37:07" (1/5) ... [2020-07-01 12:37:08,566 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c8e07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:37:08,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:37:08" (2/5) ... [2020-07-01 12:37:08,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c8e07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:37:08,567 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:37:08" (3/5) ... [2020-07-01 12:37:08,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c8e07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:37:08,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:37:08" (4/5) ... [2020-07-01 12:37:08,568 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c8e07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:37:08, skipping insertion in model container [2020-07-01 12:37:08,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:37:08,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:37:08" (5/5) ... [2020-07-01 12:37:08,570 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:37:08,598 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:37:08,599 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:37:08,599 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:37:08,599 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:37:08,599 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:37:08,599 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:37:08,599 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:37:08,599 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:37:08,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:37:08,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:08,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:37:08,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:37:08,625 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:37:08,625 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:37:08,625 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:37:08,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:37:08,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:08,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:37:08,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:37:08,626 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:37:08,626 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:37:08,631 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 7#L11-2true [2020-07-01 12:37:08,632 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [45] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L12true [33] L12-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_9)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 6#L15-2true [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 7#L11-2true [2020-07-01 12:37:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 12:37:08,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:08,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130164136] [2020-07-01 12:37:08,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash 74095, now seen corresponding path program 1 times [2020-07-01 12:37:08,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:08,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658041719] [2020-07-01 12:37:08,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,736 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1921137, now seen corresponding path program 1 times [2020-07-01 12:37:08,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:08,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597490065] [2020-07-01 12:37:08,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:08,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:08,793 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:37:08,794 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:37:08,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:37:08,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:37:08,794 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:37:08,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:08,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:37:08,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:37:08,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:37:08,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:37:08,795 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:37:08,815 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 12:37:08,829 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 12:37:08,835 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 12:37:08,840 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 12:37:08,920 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:37:08,921 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:08,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:37:08,928 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:08,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:37:08,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:37:09,005 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:37:09,008 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:37:09,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:37:09,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:37:09,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:37:09,008 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:37:09,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:09,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:37:09,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:37:09,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:37:09,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:37:09,009 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:37:09,011 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 12:37:09,021 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 12:37:09,031 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 12:37:09,036 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 12:37:09,101 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:37:09,106 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:09,112 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 12:37:09,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:37:09,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:37:09,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:37:09,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:37:09,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:37:09,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:37:09,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:37:09,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:37:09,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:37:09,131 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:09,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:37:09,137 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:37:09,138 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:37:09,139 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:37:09,173 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:37:09,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:09,208 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:37:09,209 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:09,222 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:37:09,222 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:09,268 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 12:37:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:09,325 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:37:09,325 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:09,334 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-07-01 12:37:09,339 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-07-01 12:37:09,341 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 12:37:09,402 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 20 states and 32 transitions. Complement of second has 7 states. [2020-07-01 12:37:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:37:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:37:09,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-01 12:37:09,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:37:09,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:09,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:37:09,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:09,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:37:09,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:09,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 32 transitions. [2020-07-01 12:37:09,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:09,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 21 transitions. [2020-07-01 12:37:09,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:37:09,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:37:09,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2020-07-01 12:37:09,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:37:09,425 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-07-01 12:37:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2020-07-01 12:37:09,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2020-07-01 12:37:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:37:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2020-07-01 12:37:09,454 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-07-01 12:37:09,454 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-07-01 12:37:09,454 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:37:09,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2020-07-01 12:37:09,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:09,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:37:09,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:37:09,456 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:37:09,456 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:37:09,456 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 79#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 80#L12 [2020-07-01 12:37:09,457 INFO L796 eck$LassoCheckResult]: Loop: 80#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 74#L15 [44] L15-->L15-2: Formula: (>= 0 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8} AuxVars[] AssignedVars[] 75#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 83#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 80#L12 [2020-07-01 12:37:09,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 1 times [2020-07-01 12:37:09,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:09,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295199723] [2020-07-01 12:37:09,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,465 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2247980, now seen corresponding path program 1 times [2020-07-01 12:37:09,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:09,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45887249] [2020-07-01 12:37:09,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:09,499 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 12:37:09,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45887249] [2020-07-01 12:37:09,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:37:09,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:37:09,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280904939] [2020-07-01 12:37:09,504 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:37:09,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:37:09,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:37:09,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:37:09,508 INFO L87 Difference]: Start difference. First operand 12 states and 19 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-07-01 12:37:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:37:09,524 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2020-07-01 12:37:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:37:09,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2020-07-01 12:37:09,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:09,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 12 states and 17 transitions. [2020-07-01 12:37:09,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:37:09,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 12:37:09,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2020-07-01 12:37:09,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:37:09,529 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-07-01 12:37:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2020-07-01 12:37:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-01 12:37:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:37:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2020-07-01 12:37:09,531 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-07-01 12:37:09,531 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-07-01 12:37:09,531 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:37:09,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2020-07-01 12:37:09,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:37:09,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:37:09,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:37:09,532 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:37:09,532 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:37:09,532 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 115#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 116#L12 [2020-07-01 12:37:09,533 INFO L796 eck$LassoCheckResult]: Loop: 116#L12 [43] L12-->L15: Formula: (>= 0 v_ULTIMATE.start_main_~x~0_10) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[] 110#L15 [30] L15-->L15-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 111#L15-2 [36] L15-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 119#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~y~0_10) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10} AuxVars[] AssignedVars[] 116#L12 [2020-07-01 12:37:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 2 times [2020-07-01 12:37:09,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:09,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499098774] [2020-07-01 12:37:09,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,541 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:09,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2234526, now seen corresponding path program 1 times [2020-07-01 12:37:09,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:09,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535231652] [2020-07-01 12:37:09,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,550 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:09,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1847429484, now seen corresponding path program 1 times [2020-07-01 12:37:09,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:37:09,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649966071] [2020-07-01 12:37:09,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:37:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:37:09,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:37:09,593 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:37:09,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:37:09,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:37:09,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:37:09,609 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:37:09,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:09,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:37:09,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:37:09,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:37:09,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:37:09,610 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:37:09,612 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 12:37:09,616 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 12:37:09,620 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 12:37:09,624 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 12:37:09,631 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 12:37:09,706 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:37:09,706 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:09,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:37:09,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:37:09,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:37:09,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:09,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:37:09,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:37:09,757 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:37:09,758 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:37:09,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:37:09,792 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 12:37:09,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:37:09,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:37:09,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:37:09,845 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=-1}] Lambdas: [11, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/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 12:37:09,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:37:09,879 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 12:37:09,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:37:09,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:37:10,008 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:37:10,010 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:37:10,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:37:10,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:37:10,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:37:10,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:37:10,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:37:10,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:37:10,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:37:10,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:37:10,012 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:37:10,014 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 12:37:10,020 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 12:37:10,024 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 12:37:10,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:37:10,036 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 12:37:10,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:37:10,099 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,105 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 12:37:10,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:37:10,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:37:10,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:37:10,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:37:10,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:37:10,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:37:10,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,152 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 12:37:10,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:37:10,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:37:10,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:37:10,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:37:10,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:37:10,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:37:10,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,196 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 12:37:10,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:37:10,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:37:10,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:37:10,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:37:10,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:37:10,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:37:10,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:37:10,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,236 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 12:37:10,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:37:10,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:37:10,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:37:10,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:37:10,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:37:10,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:37:10,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:37:10,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:37:10,246 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:37:10,247 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:37:10,253 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:37:10,254 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:37:10,254 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:37:10,254 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:37:10,284 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:37:10,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:37:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:10,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:37:10,301 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:10,305 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:37:10,306 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:10,315 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 12:37:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:37:10,322 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:37:10,323 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:37:10,348 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:37:10,349 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 12:37:10,349 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-07-01 12:37:10,393 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 36 states and 54 transitions. Complement of second has 9 states. [2020-07-01 12:37:10,394 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 12:37:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:37:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-01 12:37:10,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 12:37:10,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:10,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:37:10,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:10,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 12:37:10,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:37:10,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2020-07-01 12:37:10,401 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:37:10,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2020-07-01 12:37:10,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:37:10,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:37:10,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:37:10,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:37:10,402 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:37:10,402 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:37:10,402 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:37:10,402 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:37:10,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:37:10,402 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:37:10,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:37:10,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:37:10 BasicIcfg [2020-07-01 12:37:10,409 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:37:10,411 INFO L168 Benchmark]: Toolchain (without parser) took 2674.84 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 561.2 MB in the beginning and 414.7 MB in the end (delta: 146.6 MB). Peak memory consumption was 181.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,412 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:37:10,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.59 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 561.2 MB in the beginning and 647.0 MB in the end (delta: -85.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.98 ms. Allocated memory is still 684.2 MB. Free memory was 647.0 MB in the beginning and 645.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,413 INFO L168 Benchmark]: Boogie Preprocessor took 20.12 ms. Allocated memory is still 684.2 MB. Free memory was 645.9 MB in the beginning and 644.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,414 INFO L168 Benchmark]: RCFGBuilder took 232.83 ms. Allocated memory is still 684.2 MB. Free memory was 644.8 MB in the beginning and 630.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,414 INFO L168 Benchmark]: BlockEncodingV2 took 78.58 ms. Allocated memory is still 684.2 MB. Free memory was 630.3 MB in the beginning and 624.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,415 INFO L168 Benchmark]: TraceAbstraction took 168.69 ms. Allocated memory is still 684.2 MB. Free memory was 623.8 MB in the beginning and 615.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,415 INFO L168 Benchmark]: BuchiAutomizer took 1848.14 ms. Allocated memory is still 684.2 MB. Free memory was 615.2 MB in the beginning and 414.7 MB in the end (delta: 200.5 MB). Peak memory consumption was 200.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:37:10,419 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 8 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 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 286.59 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 561.2 MB in the beginning and 647.0 MB in the end (delta: -85.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.98 ms. Allocated memory is still 684.2 MB. Free memory was 647.0 MB in the beginning and 645.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.12 ms. Allocated memory is still 684.2 MB. Free memory was 645.9 MB in the beginning and 644.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 232.83 ms. Allocated memory is still 684.2 MB. Free memory was 644.8 MB in the beginning and 630.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.58 ms. Allocated memory is still 684.2 MB. Free memory was 630.3 MB in the beginning and 624.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 168.69 ms. Allocated memory is still 684.2 MB. Free memory was 623.8 MB in the beginning and 615.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1848.14 ms. Allocated memory is still 684.2 MB. Free memory was 615.2 MB in the beginning and 414.7 MB in the end (delta: 200.5 MB). Peak memory consumption was 200.5 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 37 SDslu, 31 SDs, 0 SdLazy, 50 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax173 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:37:04.488 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_0rdvAH/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:37:11.054 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check