/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:15:52,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:15:52,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:15:52,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:15:52,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:15:52,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:15:52,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:15:52,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:15:52,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:15:52,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:15:52,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:15:52,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:15:52,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:15:52,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:15:52,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:15:52,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:15:52,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:15:52,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:15:52,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:15:52,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:15:52,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:15:52,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:15:52,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:15:52,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:15:52,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:15:52,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:15:52,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:15:52,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:15:52,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:15:52,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:15:52,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:15:52,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:15:52,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:15:52,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:15:52,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:15:52,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:15:52,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:15:52,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:15:52,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:15:52,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:15:52,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:15:52,704 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:15:52,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:15:52,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:15:52,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:15:52,720 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:15:52,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:15:52,720 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:15:52,720 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:15:52,721 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:15:52,721 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:15:52,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:15:52,721 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:15:52,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:15:52,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:15:52,722 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:15:52,722 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:52,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:15:52,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:15:52,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:15:52,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:15:52,723 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:15:52,723 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:15:52,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:15:52,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:15:52,724 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:15:52,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:15:52,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:15:52,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:15:52,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:15:52,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:15:52,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:15:52,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:15:52,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:15:52,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:15:52,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:15:52,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:15:52,977 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_BZnIEd/tmp/be6b8e9ce8ad411aaea9cad79e038a25/FLAG51950f352 [2020-07-01 11:15:53,314 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:15:53,315 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:15:53,321 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_BZnIEd/tmp/be6b8e9ce8ad411aaea9cad79e038a25/FLAG51950f352 [2020-07-01 11:15:53,735 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_BZnIEd/tmp/be6b8e9ce8ad411aaea9cad79e038a25 [2020-07-01 11:15:53,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:15:53,747 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:15:53,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:15:53,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:15:53,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:15:53,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:15:53" (1/1) ... [2020-07-01 11:15:53,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35dfb915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:53, skipping insertion in model container [2020-07-01 11:15:53,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:15:53" (1/1) ... [2020-07-01 11:15:53,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:15:53,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:15:54,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:15:54,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:15:54,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:15:54,037 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:15:54,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54 WrapperNode [2020-07-01 11:15:54,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:15:54,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:15:54,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:15:54,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:15:54,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:15:54,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:15:54,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:15:54,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:15:54,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:15:54,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:15:54,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:15:54,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:15:54,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:15:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:15:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:15:54,313 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:15:54,314 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:15:54,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:15:54 BoogieIcfgContainer [2020-07-01 11:15:54,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:15:54,318 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:15:54,318 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:15:54,320 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:15:54,321 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:15:54" (1/1) ... [2020-07-01 11:15:54,333 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 8 edges [2020-07-01 11:15:54,335 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:15:54,336 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:15:54,336 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:15:54,336 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:15:54,338 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:15:54,339 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:15:54,339 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:15:54,353 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:15:54,368 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:15:54,372 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:15:54,374 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:15:54,383 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:15:54,385 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:15:54,386 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:15:54,386 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:15:54,386 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:15:54,387 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:15:54,387 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:15:54,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:15:54 BasicIcfg [2020-07-01 11:15:54,387 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:15:54,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:15:54,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:15:54,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:15:54,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:15:53" (1/4) ... [2020-07-01 11:15:54,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2996488d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (2/4) ... [2020-07-01 11:15:54,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2996488d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:15:54" (3/4) ... [2020-07-01 11:15:54,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2996488d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:15:54" (4/4) ... [2020-07-01 11:15:54,396 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:15:54,406 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:15:54,413 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:15:54,427 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:15:54,449 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:15:54,450 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:15:54,450 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:15:54,450 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:15:54,450 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:15:54,450 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:15:54,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:15:54,451 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:15:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:15:54,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:15:54,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:15:54,524 INFO L271 CegarLoopResult]: At program point L18-2(lines 17 26) the Hoare annotation is: true [2020-07-01 11:15:54,524 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:15:54,524 INFO L268 CegarLoopResult]: For program point L18(lines 18 25) no Hoare annotation was computed. [2020-07-01 11:15:54,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:15:54 BasicIcfg [2020-07-01 11:15:54,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:15:54,533 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:15:54,534 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:15:54,537 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:15:54,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:15:54,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:15:53" (1/5) ... [2020-07-01 11:15:54,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@add45b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:15:54,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:15:54" (2/5) ... [2020-07-01 11:15:54,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@add45b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:15:54,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:15:54" (3/5) ... [2020-07-01 11:15:54,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@add45b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:15:54,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:15:54" (4/5) ... [2020-07-01 11:15:54,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@add45b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:15:54, skipping insertion in model container [2020-07-01 11:15:54,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:15:54,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:15:54" (5/5) ... [2020-07-01 11:15:54,542 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:15:54,570 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:15:54,570 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:15:54,571 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:15:54,571 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:15:54,571 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:15:54,571 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:15:54,571 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:15:54,571 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:15:54,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:15:54,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:15:54,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:15:54,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:15:54,598 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:15:54,599 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:15:54,599 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:15:54,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:15:54,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:15:54,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:15:54,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:15:54,600 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:15:54,600 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:15:54,605 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [22] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 4#L18-2true [2020-07-01 11:15:54,606 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [25] L18-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~d~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} AuxVars[] AssignedVars[] 5#L18true [35] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~d~0_6 |v_ULTIMATE.start_main_#t~nondet4_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 4#L18-2true [2020-07-01 11:15:54,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:54,612 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-07-01 11:15:54,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:54,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75702126] [2020-07-01 11:15:54,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:54,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1771, now seen corresponding path program 1 times [2020-07-01 11:15:54,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:54,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839887866] [2020-07-01 11:15:54,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,708 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:54,710 INFO L82 PathProgramCache]: Analyzing trace with hash 51743, now seen corresponding path program 1 times [2020-07-01 11:15:54,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:54,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976479801] [2020-07-01 11:15:54,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:54,724 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:54,790 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:54,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:54,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:54,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:54,791 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:15:54,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:54,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:54,792 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:54,792 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:15:54,792 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:54,792 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:54,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:54,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:54,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:54,840 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 11:15:54,946 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:54,947 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:54,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:54,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:54,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:15:54,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:55,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:55,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:55,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:15:55,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:15:55,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:55,044 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:15:55,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:15:55,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:55,118 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:15:55,120 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:55,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:55,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:55,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:55,121 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:15:55,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:55,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:55,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:55,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:15:55,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:55,122 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:55,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,205 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:55,211 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:15:55,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:55,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:55,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:55,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:55,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:55,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:55,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:55,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:55,225 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 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 11:15:55,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:55,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:55,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:55,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:55,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:55,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:55,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:55,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:55,300 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:55,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:55,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:55,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:55,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:55,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:55,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:55,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:55,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:55,340 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:15:55,344 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:15:55,344 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:55,350 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:15:55,351 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:15:55,351 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:15:55,352 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 11:15:55,385 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:15:55,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:55,418 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:15:55,420 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:55,437 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:15:55,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:15:55,478 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:15:55,483 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:15:55,485 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:15:55,521 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 12 transitions. Complement of second has 4 states. [2020-07-01 11:15:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:15:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:15:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:15:55,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:15:55,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:55,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:15:55,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:55,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:15:55,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:55,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 12 transitions. [2020-07-01 11:15:55,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:15:55,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:15:55,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:15:55,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:15:55,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12 transitions. [2020-07-01 11:15:55,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:15:55,541 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:15:55,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 12 transitions. [2020-07-01 11:15:55,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:15:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:15:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:15:55,570 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:15:55,571 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:15:55,571 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:15:55,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 11:15:55,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:15:55,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:15:55,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:15:55,572 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:15:55,572 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:15:55,573 INFO L794 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY [22] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) 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_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_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, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |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_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 49#L18-2 [25] L18-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~d~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} AuxVars[] AssignedVars[] 47#L18 [27] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (= v_ULTIMATE.start_main_~d~0_7 (+ v_ULTIMATE.start_main_~d~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 43#L18-2 [2020-07-01 11:15:55,573 INFO L796 eck$LassoCheckResult]: Loop: 43#L18-2 [25] L18-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~d~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} AuxVars[] AssignedVars[] 44#L18 [35] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~d~0_6 |v_ULTIMATE.start_main_#t~nondet4_3|)) InVars {ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 43#L18-2 [2020-07-01 11:15:55,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:55,573 INFO L82 PathProgramCache]: Analyzing trace with hash 51735, now seen corresponding path program 1 times [2020-07-01 11:15:55,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:55,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558438753] [2020-07-01 11:15:55,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,588 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:55,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:55,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1771, now seen corresponding path program 2 times [2020-07-01 11:15:55,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:55,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352762287] [2020-07-01 11:15:55,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,598 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:55,598 INFO L82 PathProgramCache]: Analyzing trace with hash 49718145, now seen corresponding path program 1 times [2020-07-01 11:15:55,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:55,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589614956] [2020-07-01 11:15:55,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:55,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:55,641 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:55,641 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:55,641 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:55,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:55,642 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:15:55,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:55,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:55,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:55,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:15:55,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:55,643 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:55,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,708 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:55,708 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:15:55,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:55,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:55,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:15:55,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:15:55,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:55,759 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:15:55,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:15:55,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:55,838 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:15:55,840 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:55,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:55,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:55,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:55,841 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:15:55,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:55,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:55,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:55,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:15:55,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:55,842 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:55,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:55,927 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:55,927 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:15:55,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:55,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:55,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:55,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:55,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:55,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:55,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:55,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:55,940 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 11:15:55,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:55,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:55,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:55,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:55,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:55,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:55,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:55,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:55,981 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:15:55,985 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:15:55,986 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 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 11:15:55,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:15:55,992 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:15:55,993 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:15:55,993 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 11:15:56,023 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:15:56,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:56,055 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:15:56,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:56,073 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:15:56,074 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:15:56,100 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:15:56,100 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:15:56,101 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:15:56,128 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 9 states and 15 transitions. Complement of second has 4 states. [2020-07-01 11:15:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:15:56,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:15:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:15:56,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:15:56,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:15:56,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:15:56,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 15 transitions. [2020-07-01 11:15:56,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:15:56,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 15 transitions. [2020-07-01 11:15:56,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:15:56,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:15:56,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-07-01 11:15:56,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:15:56,135 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 11:15:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-07-01 11:15:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 11:15:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:15:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:15:56,137 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:15:56,137 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:15:56,137 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:15:56,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:15:56,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:15:56,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:15:56,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:15:56,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:15:56,138 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:15:56,139 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY [22] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~d~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 95#L18-2 [2020-07-01 11:15:56,139 INFO L796 eck$LassoCheckResult]: Loop: 95#L18-2 [25] L18-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_5) (< 0 v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~d~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} AuxVars[] AssignedVars[] 97#L18 [27] L18-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (= v_ULTIMATE.start_main_~d~0_7 (+ v_ULTIMATE.start_main_~d~0_8 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~d~0] 95#L18-2 [2020-07-01 11:15:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:56,139 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 2 times [2020-07-01 11:15:56,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:56,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341223571] [2020-07-01 11:15:56,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:56,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:56,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1763, now seen corresponding path program 1 times [2020-07-01 11:15:56,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:56,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469787019] [2020-07-01 11:15:56,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,157 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash 51735, now seen corresponding path program 2 times [2020-07-01 11:15:56,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:15:56,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850602142] [2020-07-01 11:15:56,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:15:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:15:56,170 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:15:56,215 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:56,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:56,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:56,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:56,215 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:15:56,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:15:56,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:56,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:56,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:15:56,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:56,216 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:56,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,310 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:56,310 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 11:15:56,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:56,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:56,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:15:56,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:15:56,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:15:56,352 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:15:56,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:15:56,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:15:56,424 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:15:56,426 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:15:56,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:15:56,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:15:56,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:15:56,426 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:15:56,426 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:56,426 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:15:56,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:15:56,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:15:56,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:15:56,427 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:15:56,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:15:56,507 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:15:56,508 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:15:56,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:56,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:56,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:56,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:56,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:56,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:56,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:56,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:56,517 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 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 11:15:56,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:15:56,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:15:56,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:15:56,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:15:56,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:15:56,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:15:56,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:15:56,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:15:56,557 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:15:56,560 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:15:56,560 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 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 11:15:56,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:15:56,579 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:15:56,579 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:15:56,579 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 11:15:56,609 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:15:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:15:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:56,646 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:15:56,646 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:15:56,652 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:15:56,652 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:15:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:15:56,669 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:15:56,669 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:15:56,669 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-01 11:15:56,695 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 20 transitions. Complement of second has 4 states. [2020-07-01 11:15:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:15:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:15:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-01 11:15:56,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:15:56,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:15:56,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:15:56,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:15:56,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. [2020-07-01 11:15:56,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:15:56,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 11:15:56,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:15:56,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:15:56,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:15:56,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:15:56,700 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:15:56,700 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:15:56,700 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:15:56,700 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:15:56,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:15:56,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:15:56,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:15:56,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:15:56 BasicIcfg [2020-07-01 11:15:56,706 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:15:56,709 INFO L168 Benchmark]: Toolchain (without parser) took 2960.80 ms. Allocated memory was 649.6 MB in the beginning and 760.7 MB in the end (delta: 111.1 MB). Free memory was 557.0 MB in the beginning and 691.9 MB in the end (delta: -134.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:15:56,709 INFO L168 Benchmark]: CDTParser took 0.16 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 11:15:56,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.80 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 557.0 MB in the beginning and 655.9 MB in the end (delta: -98.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.53 ms. Allocated memory is still 692.1 MB. Free memory was 655.9 MB in the beginning and 653.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,711 INFO L168 Benchmark]: Boogie Preprocessor took 19.85 ms. Allocated memory is still 692.1 MB. Free memory was 653.7 MB in the beginning and 652.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,712 INFO L168 Benchmark]: RCFGBuilder took 223.57 ms. Allocated memory is still 692.1 MB. Free memory was 652.6 MB in the beginning and 637.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,712 INFO L168 Benchmark]: BlockEncodingV2 took 69.96 ms. Allocated memory is still 692.1 MB. Free memory was 637.9 MB in the beginning and 633.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,713 INFO L168 Benchmark]: TraceAbstraction took 144.32 ms. Allocated memory is still 692.1 MB. Free memory was 632.5 MB in the beginning and 623.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,713 INFO L168 Benchmark]: BuchiAutomizer took 2173.10 ms. Allocated memory was 692.1 MB in the beginning and 760.7 MB in the end (delta: 68.7 MB). Free memory was 623.9 MB in the beginning and 691.9 MB in the end (delta: -68.0 MB). Peak memory consumption was 688.4 kB. Max. memory is 50.3 GB. [2020-07-01 11:15:56,718 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 8 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.80 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 557.0 MB in the beginning and 655.9 MB in the end (delta: -98.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.53 ms. Allocated memory is still 692.1 MB. Free memory was 655.9 MB in the beginning and 653.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.85 ms. Allocated memory is still 692.1 MB. Free memory was 653.7 MB in the beginning and 652.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.57 ms. Allocated memory is still 692.1 MB. Free memory was 652.6 MB in the beginning and 637.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.96 ms. Allocated memory is still 692.1 MB. Free memory was 637.9 MB in the beginning and 633.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.32 ms. Allocated memory is still 692.1 MB. Free memory was 632.5 MB in the beginning and 623.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2173.10 ms. Allocated memory was 692.1 MB in the beginning and 760.7 MB in the end (delta: 68.7 MB). Free memory was 623.9 MB in the beginning and 691.9 MB in the end (delta: -68.0 MB). Peak memory consumption was 688.4 kB. 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:15:50.479 ----------------------------------------------- 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_BZnIEd/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:15:57.151 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check