/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:11:07,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:11:07,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:11:07,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:11:07,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:11:07,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:11:07,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:11:07,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:11:07,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:11:07,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:11:07,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:11:07,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:11:07,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:11:07,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:11:07,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:11:07,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:11:07,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:11:07,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:11:07,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:11:07,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:11:07,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:11:07,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:11:07,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:11:07,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:11:07,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:11:07,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:11:07,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:11:07,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:11:07,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:11:07,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:11:07,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:11:07,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:11:07,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:11:07,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:11:07,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:11:07,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:11:07,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:11:07,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:11:07,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:11:07,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:11:07,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:11:07,636 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 13:11:07,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:11:07,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:11:07,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:11:07,652 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:11:07,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:11:07,652 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:11:07,652 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:11:07,653 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:11:07,653 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:11:07,653 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:11:07,653 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:11:07,653 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:11:07,653 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:11:07,654 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:11:07,654 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:07,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:11:07,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:11:07,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:11:07,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:11:07,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:11:07,655 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:11:07,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:11:07,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:11:07,655 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:11:07,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:11:07,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:11:07,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:11:07,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:11:07,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:11:07,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:11:07,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:11:07,835 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:11:07,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:11:07,837 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:11:07,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:11:07,895 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_0mzV5g/tmp/1e0e4ea786d8464aa731dde3a13b3560/FLAG168ffdb00 [2020-07-01 13:11:08,226 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:11:08,226 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:11:08,233 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_0mzV5g/tmp/1e0e4ea786d8464aa731dde3a13b3560/FLAG168ffdb00 [2020-07-01 13:11:08,640 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_0mzV5g/tmp/1e0e4ea786d8464aa731dde3a13b3560 [2020-07-01 13:11:08,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:11:08,652 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:11:08,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:11:08,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:11:08,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:11:08,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:08,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4a30ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08, skipping insertion in model container [2020-07-01 13:11:08,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:08,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:11:08,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:11:08,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:11:08,920 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:11:08,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:11:08,952 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:11:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08 WrapperNode [2020-07-01 13:11:08,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:11:08,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:11:08,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:11:08,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:11:08,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:08,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:08,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:11:08,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:11:08,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:11:08,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:11:08,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:08,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... [2020-07-01 13:11:09,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:11:09,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:11:09,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:11:09,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:11:09,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:11:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:11:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:11:09,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:11:09,249 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:11:09,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:11:09 BoogieIcfgContainer [2020-07-01 13:11:09,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:11:09,253 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:11:09,253 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:11:09,255 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:11:09,256 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:11:09" (1/1) ... [2020-07-01 13:11:09,268 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 13:11:09,270 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:11:09,271 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:11:09,271 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:11:09,272 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:11:09,274 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:11:09,274 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:11:09,275 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:11:09,288 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:11:09,303 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 13:11:09,307 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:11:09,308 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:11:09,319 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 13:11:09,320 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 13:11:09,322 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:11:09,322 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:11:09,322 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:11:09,322 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:11:09,323 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 13:11:09,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:11:09 BasicIcfg [2020-07-01 13:11:09,323 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:11:09,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:11:09,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:11:09,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:11:09,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:11:08" (1/4) ... [2020-07-01 13:11:09,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (2/4) ... [2020-07-01 13:11:09,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:11:09" (3/4) ... [2020-07-01 13:11:09,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:11:09" (4/4) ... [2020-07-01 13:11:09,332 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:11:09,342 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:11:09,349 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:11:09,362 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:11:09,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:11:09,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:11:09,385 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:11:09,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:11:09,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:11:09,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:11:09,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:11:09,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:11:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 13:11:09,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:11:09,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 13:11:09,461 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:11:09,461 INFO L268 CegarLoopResult]: For program point L22(lines 22 28) no Hoare annotation was computed. [2020-07-01 13:11:09,475 INFO L271 CegarLoopResult]: At program point L22-2(lines 21 29) the Hoare annotation is: true [2020-07-01 13:11:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:11:09 BasicIcfg [2020-07-01 13:11:09,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:11:09,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:11:09,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:11:09,488 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:11:09,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:11:09,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:11:08" (1/5) ... [2020-07-01 13:11:09,489 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2da67155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:11:09,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:11:08" (2/5) ... [2020-07-01 13:11:09,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2da67155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:11:09,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:11:09" (3/5) ... [2020-07-01 13:11:09,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2da67155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:11:09,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:11:09" (4/5) ... [2020-07-01 13:11:09,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2da67155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:11:09, skipping insertion in model container [2020-07-01 13:11:09,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:11:09,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:11:09" (5/5) ... [2020-07-01 13:11:09,493 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:11:09,520 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:11:09,520 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:11:09,520 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:11:09,521 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:11:09,521 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:11:09,521 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:11:09,521 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:11:09,521 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:11:09,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:11:09,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:11:09,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:11:09,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:11:09,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:11:09,549 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:11:09,549 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:11:09,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:11:09,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:11:09,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:11:09,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:11:09,551 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:11:09,551 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:11:09,556 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [24] ULTIMATE.startENTRY-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~tx~0_1 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet3_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 5#L22-2true [2020-07-01 13:11:09,557 INFO L796 eck$LassoCheckResult]: Loop: 5#L22-2true [32] L22-2-->L22: Formula: (and (<= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~tx~0_7)) (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 4#L22true [37] L22-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~tx~0_8 v_ULTIMATE.start_main_~x~0_9) (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_8 |v_ULTIMATE.start_main_#t~nondet5_3|) (> 0 |v_ULTIMATE.start_main_#t~nondet4_3|)) InVars {ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~tx~0=v_ULTIMATE.start_main_~tx~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~tx~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 5#L22-2true [2020-07-01 13:11:09,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:09,563 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-07-01 13:11:09,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:11:09,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352922241] [2020-07-01 13:11:09,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:11:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,644 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:11:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:09,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2020-07-01 13:11:09,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:11:09,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574484596] [2020-07-01 13:11:09,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:11:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:11:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:09,667 INFO L82 PathProgramCache]: Analyzing trace with hash 53884, now seen corresponding path program 1 times [2020-07-01 13:11:09,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:11:09,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818931233] [2020-07-01 13:11:09,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:11:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:11:09,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:11:09,750 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:11:09,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:11:09,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:11:09,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:11:09,752 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:11:09,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:09,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:11:09,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:11:09,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:11:09,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:11:09,753 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:11:09,773 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 13:11:09,783 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 13:11:09,787 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 13:11:09,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 13:11:09,905 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:11:09,906 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:09,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:11:09,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:11:09,924 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:11:09,924 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:09,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:11:09,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:11:09,962 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:11:09,962 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:09,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:11:09,995 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:11:10,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:11:10,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:11:10,738 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:11:10,741 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:11:10,741 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:11:10,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:11:10,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:11:10,741 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:11:10,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:10,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:11:10,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:11:10,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:11:10,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:11:10,742 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:11:10,745 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 13:11:10,750 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 13:11:10,755 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 13:11:10,769 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 13:11:10,864 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:11:10,870 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:10,875 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 13:11:10,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:10,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:10,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:10,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:11:10,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:11:10,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:11:10,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:10,928 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 13:11:10,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:10,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:10,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:10,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:11:10,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:11:10,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:11:10,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 13:11:10,975 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 13:11:10,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:10,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:11:10,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:10,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:10,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:11:10,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:11:10,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:11:10,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 13:11:11,019 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 13:11:11,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:11,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:11:11,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:11,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:11,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:11:11,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:11:11,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:11:11,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 13:11:11,054 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:11,057 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 13:11:11,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:11,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:11,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:11,060 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:11:11,064 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 13:11:11,065 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 13:11:11,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:11,108 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 13:11:11,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:11,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:11,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:11,111 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:11:11,115 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 13:11:11,115 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 13:11:11,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:11:11,164 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 13:11:11,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:11:11,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:11:11,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:11:11,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:11:11,168 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 13:11:11,171 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 13:11:11,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:11:11,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:11:11,199 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 13:11:11,199 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 13:11:11,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:11:11,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:11:11,207 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:11:11,207 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 - 2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2020-07-01 13:11:11,241 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:11:16,713 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank1 (ite .cse0 .cse1 (+ (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) .cse1 1))) (>= c_oldRank0 (ite .cse0 1 0))))) is different from false [2020-07-01 13:11:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:16,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:11:16,738 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:16,753 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 13:11:16,754 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:16,775 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:11:16,902 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2020-07-01 13:11:16,906 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 13:11:38,926 WARN L192 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 15 [2020-07-01 13:11:44,396 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 13:11:44,401 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 9 loop predicates [2020-07-01 13:11:44,402 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:11:44,483 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 17 transitions. Complement of second has 6 states. [2020-07-01 13:11:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 13:11:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:11:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-07-01 13:11:44,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:11:44,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:11:44,490 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 13:11:49,930 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank1 (ite .cse0 .cse1 (+ (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) .cse1 1))) (>= c_oldRank0 (ite .cse0 1 0))))) is different from false [2020-07-01 13:11:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:49,946 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:11:49,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:49,956 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 13:11:49,956 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:49,959 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:11:50,038 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 13:11:50,039 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 13:11:50,039 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:11:50,045 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 5 states and 9 transitions. Complement of second has 2 states. [2020-07-01 13:11:50,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 13:11:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:11:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 13:11:50,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:11:50,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:11:50,047 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 13:11:55,491 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank1 (ite .cse0 .cse1 (+ (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) .cse1 1))) (>= c_oldRank0 (ite .cse0 1 0))))) is different from false [2020-07-01 13:11:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:11:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:55,509 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:11:55,510 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:11:55,518 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 13:11:55,518 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:11:55,521 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:11:55,602 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 13:12:01,154 WARN L838 $PredicateComparison]: unable to prove that (<= (let ((.cse0 (* 2 c_ULTIMATE.start_main_~z~0))) (ite (> .cse0 0) .cse0 (+ (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) .cse0 1))) c_oldRank1) is different from false [2020-07-01 13:12:01,182 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 13:12:01,182 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2020-07-01 13:12:01,183 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 3 states. Second operand 3 states. [2020-07-01 13:12:33,798 WARN L192 SmtUtils]: Spent 32.58 s on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-07-01 13:12:39,221 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 2 c_ULTIMATE.start_main_~z~0))) (let ((.cse0 (> .cse1 0))) (and (<= c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0) (<= (ite .cse0 .cse1 (+ (* 2 c_ULTIMATE.start_main_~tx~0) (* (- 2) c_ULTIMATE.start_main_~y~0) .cse1 1)) c_oldRank1) (<= (ite .cse0 1 0) c_oldRank0)))) is different from false [2020-07-01 13:12:39,342 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 3 states. Second operand 3 states. Result 20 states and 53 transitions. Complement of second has 21 states 6 powerset states15 rank states. The highest rank that occured is 5 [2020-07-01 13:12:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 13:12:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:12:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-01 13:12:39,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:12:39,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:12:39,344 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 13:12:39,345 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:792) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:551) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 13:12:39,349 INFO L168 Benchmark]: Toolchain (without parser) took 90696.61 ms. Allocated memory was 649.6 MB in the beginning and 748.2 MB in the end (delta: 98.6 MB). Free memory was 560.5 MB in the beginning and 693.7 MB in the end (delta: -133.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:39,349 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:39,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.95 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 560.5 MB in the beginning and 653.3 MB in the end (delta: -92.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 651.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,351 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 ms. Allocated memory is still 690.0 MB. Free memory was 651.9 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,352 INFO L168 Benchmark]: RCFGBuilder took 242.70 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 634.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,353 INFO L168 Benchmark]: BlockEncodingV2 took 70.68 ms. Allocated memory is still 690.0 MB. Free memory was 634.8 MB in the beginning and 630.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,353 INFO L168 Benchmark]: TraceAbstraction took 159.33 ms. Allocated memory is still 690.0 MB. Free memory was 629.4 MB in the beginning and 621.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:39,354 INFO L168 Benchmark]: BuchiAutomizer took 89862.76 ms. Allocated memory was 690.0 MB in the beginning and 748.2 MB in the end (delta: 58.2 MB). Free memory was 621.3 MB in the beginning and 693.7 MB in the end (delta: -72.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:39,358 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 299.95 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 560.5 MB in the beginning and 653.3 MB in the end (delta: -92.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 690.0 MB. Free memory was 653.3 MB in the beginning and 651.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.24 ms. Allocated memory is still 690.0 MB. Free memory was 651.9 MB in the beginning and 650.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 242.70 ms. Allocated memory is still 690.0 MB. Free memory was 650.6 MB in the beginning and 634.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.68 ms. Allocated memory is still 690.0 MB. Free memory was 634.8 MB in the beginning and 630.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 159.33 ms. Allocated memory is still 690.0 MB. Free memory was 629.4 MB in the beginning and 621.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 89862.76 ms. Allocated memory was 690.0 MB in the beginning and 748.2 MB in the end (delta: 58.2 MB). Free memory was 621.3 MB in the beginning and 693.7 MB in the end (delta: -72.4 MB). There was no memory consumed. 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: 21]: 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:792) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-07-01 13:11:05.029 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_0mzV5g/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:12:39.588 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check