/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:05:20,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:05:20,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:05:20,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:05:20,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:05:20,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:05:20,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:05:20,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:05:20,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:05:20,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:05:20,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:05:20,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:05:20,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:05:20,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:05:20,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:05:20,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:05:20,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:05:20,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:05:20,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:05:20,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:05:20,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:05:21,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:05:21,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:05:21,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:05:21,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:05:21,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:05:21,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:05:21,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:05:21,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:05:21,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:05:21,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:05:21,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:05:21,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:05:21,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:05:21,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:05:21,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:05:21,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:05:21,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:05:21,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:05:21,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:05:21,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:05:21,013 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:05:21,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:05:21,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:05:21,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:05:21,029 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:05:21,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:05:21,029 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:05:21,029 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:05:21,029 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:05:21,030 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:05:21,031 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:21,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:05:21,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:05:21,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:05:21,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:05:21,032 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:05:21,032 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:05:21,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:05:21,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:05:21,032 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:05:21,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:05:21,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:05:21,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:05:21,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:05:21,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:05:21,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:05:21,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:05:21,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:05:21,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:05:21,216 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:05:21,216 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:05:21,281 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_oglUfx/tmp/b4d806ac883942c8b03252b6d198e8ae/FLAGbab89587f [2020-07-01 12:05:21,606 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:05:21,607 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:05:21,614 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_oglUfx/tmp/b4d806ac883942c8b03252b6d198e8ae/FLAGbab89587f [2020-07-01 12:05:22,014 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_oglUfx/tmp/b4d806ac883942c8b03252b6d198e8ae [2020-07-01 12:05:22,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:05:22,027 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:05:22,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:05:22,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:05:22,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:05:22,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1435b818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:05:22,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:05:22,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:05:22,290 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:05:22,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:05:22,323 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:05:22,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22 WrapperNode [2020-07-01 12:05:22,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:05:22,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:05:22,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:05:22,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:05:22,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:05:22,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:05:22,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:05:22,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:05:22,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:05:22,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:05:22,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:05:22,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:05:22,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:05:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:05:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:05:22,624 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:05:22,624 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:05:22,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:05:22 BoogieIcfgContainer [2020-07-01 12:05:22,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:05:22,628 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:05:22,629 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:05:22,631 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:05:22,631 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:05:22" (1/1) ... [2020-07-01 12:05:22,643 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 12:05:22,645 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:05:22,646 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:05:22,646 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:05:22,646 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:05:22,648 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:05:22,649 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:05:22,649 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:05:22,664 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:05:22,679 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:05:22,683 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:05:22,685 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:05:22,703 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:05:22,705 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:05:22,706 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:05:22,707 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:05:22,707 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:05:22,707 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:05:22,707 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2020-07-01 12:05:22,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:05:22 BasicIcfg [2020-07-01 12:05:22,708 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:05:22,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:05:22,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:05:22,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:05:22,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:05:22" (1/4) ... [2020-07-01 12:05:22,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685fdc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (2/4) ... [2020-07-01 12:05:22,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685fdc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:05:22" (3/4) ... [2020-07-01 12:05:22,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685fdc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:05:22" (4/4) ... [2020-07-01 12:05:22,717 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:05:22,727 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:05:22,734 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:05:22,748 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:05:22,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:05:22,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:05:22,771 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:05:22,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:05:22,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:05:22,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:05:22,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:05:22,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:05:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:05:22,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:05:22,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:05:22,848 INFO L268 CegarLoopResult]: For program point L18-2(lines 17 28) no Hoare annotation was computed. [2020-07-01 12:05:22,849 INFO L271 CegarLoopResult]: At program point L16-2(lines 16 31) the Hoare annotation is: true [2020-07-01 12:05:22,849 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:05:22,849 INFO L271 CegarLoopResult]: At program point L23-1(lines 17 28) the Hoare annotation is: true [2020-07-01 12:05:22,849 INFO L268 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-07-01 12:05:22,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:05:22 BasicIcfg [2020-07-01 12:05:22,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:05:22,858 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:05:22,858 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:05:22,862 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:05:22,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:05:22,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:05:22" (1/5) ... [2020-07-01 12:05:22,863 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fde05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,863 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:05:22,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:05:22" (2/5) ... [2020-07-01 12:05:22,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fde05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:05:22,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:05:22" (3/5) ... [2020-07-01 12:05:22,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fde05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:05:22,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:05:22" (4/5) ... [2020-07-01 12:05:22,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fde05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:05:22, skipping insertion in model container [2020-07-01 12:05:22,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:05:22,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:05:22" (5/5) ... [2020-07-01 12:05:22,867 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:05:22,896 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:05:22,897 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:05:22,897 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:05:22,897 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:05:22,897 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:05:22,897 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:05:22,897 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:05:22,897 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:05:22,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:05:22,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:05:22,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:22,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:22,925 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:05:22,925 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:05:22,926 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:05:22,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:05:22,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:05:22,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:22,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:22,927 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:05:22,927 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:05:22,932 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [44] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 7#L16-2true [2020-07-01 12:05:22,932 INFO L796 eck$LassoCheckResult]: Loop: 7#L16-2true [57] L16-2-->L23-1: Formula: (< v_ULTIMATE.start_main_~a~0_9 30) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} AuxVars[] AssignedVars[] 5#L23-1true [65] L23-1-->L16-2: Formula: (and (<= v_ULTIMATE.start_main_~a~0_18 v_ULTIMATE.start_main_~b~0_17) (= (+ v_ULTIMATE.start_main_~b~0_17 (- 10)) v_ULTIMATE.start_main_~b~0_16) (= (+ v_ULTIMATE.start_main_~a~0_18 2) v_ULTIMATE.start_main_~a~0_17)) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_18, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_17} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_17, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~b~0] 7#L16-2true [2020-07-01 12:05:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:22,939 INFO L82 PathProgramCache]: Analyzing trace with hash 75, now seen corresponding path program 1 times [2020-07-01 12:05:22,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:22,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574157540] [2020-07-01 12:05:22,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,022 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:23,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:23,023 INFO L82 PathProgramCache]: Analyzing trace with hash 2793, now seen corresponding path program 1 times [2020-07-01 12:05:23,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:23,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438428916] [2020-07-01 12:05:23,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,041 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:23,044 INFO L82 PathProgramCache]: Analyzing trace with hash 73907, now seen corresponding path program 1 times [2020-07-01 12:05:23,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:23,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479560880] [2020-07-01 12:05:23,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:23,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:23,105 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:23,106 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:23,106 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:23,106 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:23,106 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:05:23,106 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:23,106 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:23,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:23,107 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:05:23,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:23,107 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:23,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:23,137 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 12:05:23,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:23,239 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:23,240 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:23,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:23,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:23,255 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:05:23,256 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 12:05:23,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:23,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:23,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:05:23,296 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 12:05:23,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:23,330 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:23,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:05:23,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:23,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:05:23,411 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:23,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:23,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:23,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:23,412 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:05:23,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:23,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:23,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:23,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:05:23,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:23,413 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:23,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:23,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:23,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:23,500 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:23,506 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:23,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:23,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:23,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:23,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:23,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:23,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:05:23,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:05:23,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:23,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:23,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:23,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:23,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:23,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:23,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:05:23,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:05:23,568 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 12:05:23,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:23,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:23,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:05:23,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:23,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:23,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:23,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:05:23,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:05:23,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:05:23,616 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:05:23,616 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:05:23,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:05:23,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:05:23,626 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:05:23,627 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0) = -1*ULTIMATE.start_main_~a~0 + 30 Supporting invariants [] [2020-07-01 12:05:23,661 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:05:23,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:23,704 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:05:23,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:23,721 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:05:23,721 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:23,759 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:05:23,764 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 12:05:23,765 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 3 states. [2020-07-01 12:05:23,825 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 3 states. Result 21 states and 39 transitions. Complement of second has 6 states. [2020-07-01 12:05:23,826 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 12:05:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:05:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-07-01 12:05:23,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:05:23,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:23,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:05:23,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:23,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:05:23,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:23,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 39 transitions. [2020-07-01 12:05:23,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:23,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 15 states and 29 transitions. [2020-07-01 12:05:23,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 12:05:23,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 12:05:23,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 29 transitions. [2020-07-01 12:05:23,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:05:23,848 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 29 transitions. [2020-07-01 12:05:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 29 transitions. [2020-07-01 12:05:23,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-07-01 12:05:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-01 12:05:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 26 transitions. [2020-07-01 12:05:23,878 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 26 transitions. [2020-07-01 12:05:23,878 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 26 transitions. [2020-07-01 12:05:23,879 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:05:23,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 26 transitions. [2020-07-01 12:05:23,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:23,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:23,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:23,880 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:05:23,880 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:05:23,881 INFO L794 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY [44] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~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_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 67#L16-2 [57] L16-2-->L23-1: Formula: (< v_ULTIMATE.start_main_~a~0_9 30) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} AuxVars[] AssignedVars[] 71#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 74#L18 [60] L18-->L18-2: Formula: (and (>= 5 v_ULTIMATE.start_main_~b~0_13) (= v_ULTIMATE.start_main_~b~0_12 (+ v_ULTIMATE.start_main_~b~0_13 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 73#L18-2 [63] L18-2-->L23-1: Formula: (and (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1)) (> v_ULTIMATE.start_main_~b~0_15 12)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 72#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 68#L18 [2020-07-01 12:05:23,881 INFO L796 eck$LassoCheckResult]: Loop: 68#L18 [51] L18-->L18-2: Formula: (and (< 5 v_ULTIMATE.start_main_~b~0_11) (= v_ULTIMATE.start_main_~b~0_10 (+ v_ULTIMATE.start_main_~b~0_11 7))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 62#L18-2 [46] L18-2-->L23-1: Formula: (and (= v_ULTIMATE.start_main_~a~0_12 (+ v_ULTIMATE.start_main_~a~0_13 10)) (<= v_ULTIMATE.start_main_~b~0_14 12) (<= 10 v_ULTIMATE.start_main_~b~0_14)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_14, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_14, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 63#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 68#L18 [2020-07-01 12:05:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:23,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2093591061, now seen corresponding path program 1 times [2020-07-01 12:05:23,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:23,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580385467] [2020-07-01 12:05:23,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:23,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580385467] [2020-07-01 12:05:23,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:05:23,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 12:05:23,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011388930] [2020-07-01 12:05:23,930 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:05:23,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:23,931 INFO L82 PathProgramCache]: Analyzing trace with hash 80278, now seen corresponding path program 1 times [2020-07-01 12:05:23,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:23,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427933327] [2020-07-01 12:05:23,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:23,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427933327] [2020-07-01 12:05:23,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:05:23,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:05:23,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726412035] [2020-07-01 12:05:23,948 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:05:23,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:05:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:05:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:05:23,952 INFO L87 Difference]: Start difference. First operand 13 states and 26 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-07-01 12:05:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:05:24,001 INFO L93 Difference]: Finished difference Result 21 states and 37 transitions. [2020-07-01 12:05:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:05:24,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 37 transitions. [2020-07-01 12:05:24,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:05:24,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 37 transitions. [2020-07-01 12:05:24,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 12:05:24,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:05:24,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 37 transitions. [2020-07-01 12:05:24,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:05:24,009 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 37 transitions. [2020-07-01 12:05:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 37 transitions. [2020-07-01 12:05:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-01 12:05:24,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-01 12:05:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 37 transitions. [2020-07-01 12:05:24,012 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 37 transitions. [2020-07-01 12:05:24,012 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 37 transitions. [2020-07-01 12:05:24,012 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:05:24,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 37 transitions. [2020-07-01 12:05:24,013 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:05:24,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:24,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:24,014 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:05:24,014 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:05:24,014 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY [44] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~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_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 108#L16-2 [57] L16-2-->L23-1: Formula: (< v_ULTIMATE.start_main_~a~0_9 30) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} AuxVars[] AssignedVars[] 112#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 120#L18 [51] L18-->L18-2: Formula: (and (< 5 v_ULTIMATE.start_main_~b~0_11) (= v_ULTIMATE.start_main_~b~0_10 (+ v_ULTIMATE.start_main_~b~0_11 7))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 121#L18-2 [63] L18-2-->L23-1: Formula: (and (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1)) (> v_ULTIMATE.start_main_~b~0_15 12)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 115#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 109#L18 [2020-07-01 12:05:24,015 INFO L796 eck$LassoCheckResult]: Loop: 109#L18 [51] L18-->L18-2: Formula: (and (< 5 v_ULTIMATE.start_main_~b~0_11) (= v_ULTIMATE.start_main_~b~0_10 (+ v_ULTIMATE.start_main_~b~0_11 7))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 103#L18-2 [63] L18-2-->L23-1: Formula: (and (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1)) (> v_ULTIMATE.start_main_~b~0_15 12)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 104#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 109#L18 [2020-07-01 12:05:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2093599710, now seen corresponding path program 1 times [2020-07-01 12:05:24,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:24,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941402662] [2020-07-01 12:05:24,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:24,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,035 INFO L82 PathProgramCache]: Analyzing trace with hash 80805, now seen corresponding path program 1 times [2020-07-01 12:05:24,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:24,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344251100] [2020-07-01 12:05:24,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1086162916, now seen corresponding path program 2 times [2020-07-01 12:05:24,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:24,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809628399] [2020-07-01 12:05:24,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,065 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:24,104 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:24,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:24,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:24,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:24,105 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:05:24,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:24,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:24,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:24,105 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:05:24,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:24,106 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:24,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:24,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:24,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:24,188 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:24,188 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:24,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:24,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:24,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:05:24,201 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:24,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:24,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:24,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:05:24,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:24,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:24,273 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:24,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:05:24,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:24,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:05:24,433 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:24,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:24,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:24,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:24,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:05:24,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:24,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:24,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:24,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:05:24,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:24,434 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:24,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:24,443 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 12:05:24,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:24,509 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:24,509 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:24,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:24,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:24,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:24,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:24,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:24,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:05:24,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:05:24,523 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:24,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:24,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:24,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:24,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:24,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:24,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:05:24,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:05:24,574 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:24,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:24,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:24,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:05:24,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:24,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:24,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:24,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:05:24,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:05:24,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:05:24,622 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:05:24,622 INFO L444 ModelExtractionUtils]: 0 out of 4 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:24,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:05:24,625 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:05:24,625 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:05:24,625 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~a~0) = -1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 Supporting invariants [] [2020-07-01 12:05:24,657 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:05:24,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,680 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:05:24,680 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,686 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:05:24,686 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,728 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:05:24,728 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:24,780 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 12:05:24,780 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 5 loop predicates [2020-07-01 12:05:24,781 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 19 Second operand 4 states. [2020-07-01 12:05:24,837 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 19. Second operand 4 states. Result 21 states and 37 transitions. Complement of second has 3 states. [2020-07-01 12:05:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 0 non-accepting loop states 2 accepting loop states [2020-07-01 12:05:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:05:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-01 12:05:24,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:05:24,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:24,858 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:05:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,876 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:05:24,876 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,881 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:05:24,882 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:24,899 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 3 loop predicates [2020-07-01 12:05:24,899 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 19 Second operand 4 states. [2020-07-01 12:05:24,948 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 21 states and 37 transitions. cyclomatic complexity: 19. Second operand 4 states. Result 34 states and 56 transitions. Complement of second has 8 states. [2020-07-01 12:05:24,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 12:05:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:05:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-07-01 12:05:24,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:05:24,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:24,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 12:05:24,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:24,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 12:05:24,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:24,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 56 transitions. [2020-07-01 12:05:24,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:24,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 40 transitions. [2020-07-01 12:05:24,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:05:24,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:05:24,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 40 transitions. [2020-07-01 12:05:24,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:05:24,956 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 40 transitions. [2020-07-01 12:05:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 40 transitions. [2020-07-01 12:05:24,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2020-07-01 12:05:24,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 12:05:24,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 34 transitions. [2020-07-01 12:05:24,958 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 34 transitions. [2020-07-01 12:05:24,958 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 34 transitions. [2020-07-01 12:05:24,958 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:05:24,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 34 transitions. [2020-07-01 12:05:24,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:24,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:24,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:24,960 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:05:24,960 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:05:24,960 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY [44] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~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_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 279#L16-2 [57] L16-2-->L23-1: Formula: (< v_ULTIMATE.start_main_~a~0_9 30) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} AuxVars[] AssignedVars[] 290#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 296#L18 [60] L18-->L18-2: Formula: (and (>= 5 v_ULTIMATE.start_main_~b~0_13) (= v_ULTIMATE.start_main_~b~0_12 (+ v_ULTIMATE.start_main_~b~0_13 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 295#L18-2 [62] L18-2-->L23-1: Formula: (and (> 10 v_ULTIMATE.start_main_~b~0_15) (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 293#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 285#L18 [2020-07-01 12:05:24,960 INFO L796 eck$LassoCheckResult]: Loop: 285#L18 [60] L18-->L18-2: Formula: (and (>= 5 v_ULTIMATE.start_main_~b~0_13) (= v_ULTIMATE.start_main_~b~0_12 (+ v_ULTIMATE.start_main_~b~0_13 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 280#L18-2 [46] L18-2-->L23-1: Formula: (and (= v_ULTIMATE.start_main_~a~0_12 (+ v_ULTIMATE.start_main_~a~0_13 10)) (<= v_ULTIMATE.start_main_~b~0_14 12) (<= 10 v_ULTIMATE.start_main_~b~0_14)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_14, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_14, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 281#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 285#L18 [2020-07-01 12:05:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash -2093591092, now seen corresponding path program 1 times [2020-07-01 12:05:24,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:24,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408288428] [2020-07-01 12:05:24,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:24,974 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:24,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:24,974 INFO L82 PathProgramCache]: Analyzing trace with hash 88927, now seen corresponding path program 1 times [2020-07-01 12:05:24,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:24,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417071731] [2020-07-01 12:05:24,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:24,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417071731] [2020-07-01 12:05:24,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:05:24,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:05:24,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086315300] [2020-07-01 12:05:24,987 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:05:24,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:05:24,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:05:24,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:05:24,988 INFO L87 Difference]: Start difference. First operand 19 states and 34 transitions. cyclomatic complexity: 17 Second operand 3 states. [2020-07-01 12:05:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:05:25,008 INFO L93 Difference]: Finished difference Result 21 states and 33 transitions. [2020-07-01 12:05:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:05:25,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 33 transitions. [2020-07-01 12:05:25,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:25,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 33 transitions. [2020-07-01 12:05:25,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 12:05:25,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:05:25,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 33 transitions. [2020-07-01 12:05:25,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:05:25,012 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 33 transitions. [2020-07-01 12:05:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 33 transitions. [2020-07-01 12:05:25,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-07-01 12:05:25,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-01 12:05:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-07-01 12:05:25,014 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-07-01 12:05:25,014 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-07-01 12:05:25,014 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:05:25,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2020-07-01 12:05:25,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:05:25,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:05:25,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:05:25,016 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:05:25,016 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:05:25,016 INFO L794 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY [44] ULTIMATE.startENTRY-->L16-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~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_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 329#L16-2 [57] L16-2-->L23-1: Formula: (< v_ULTIMATE.start_main_~a~0_9 30) InVars {ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} OutVars{ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9} AuxVars[] AssignedVars[] 334#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 339#L18 [60] L18-->L18-2: Formula: (and (>= 5 v_ULTIMATE.start_main_~b~0_13) (= v_ULTIMATE.start_main_~b~0_12 (+ v_ULTIMATE.start_main_~b~0_13 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 338#L18-2 [62] L18-2-->L23-1: Formula: (and (> 10 v_ULTIMATE.start_main_~b~0_15) (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 336#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 330#L18 [2020-07-01 12:05:25,016 INFO L796 eck$LassoCheckResult]: Loop: 330#L18 [60] L18-->L18-2: Formula: (and (>= 5 v_ULTIMATE.start_main_~b~0_13) (= v_ULTIMATE.start_main_~b~0_12 (+ v_ULTIMATE.start_main_~b~0_13 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_13} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~b~0] 324#L18-2 [62] L18-2-->L23-1: Formula: (and (> 10 v_ULTIMATE.start_main_~b~0_15) (= v_ULTIMATE.start_main_~a~0_14 (+ v_ULTIMATE.start_main_~a~0_15 1))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_15} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_15, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0] 325#L23-1 [50] L23-1-->L18: Formula: (< v_ULTIMATE.start_main_~b~0_9 v_ULTIMATE.start_main_~a~0_11) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_11} AuxVars[] AssignedVars[] 330#L18 [2020-07-01 12:05:25,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:25,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2093591092, now seen corresponding path program 2 times [2020-07-01 12:05:25,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:25,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027658100] [2020-07-01 12:05:25,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,028 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:25,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash 89423, now seen corresponding path program 1 times [2020-07-01 12:05:25,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:25,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474461086] [2020-07-01 12:05:25,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,037 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:25,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1342910372, now seen corresponding path program 3 times [2020-07-01 12:05:25,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:05:25,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257376332] [2020-07-01 12:05:25,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:05:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:05:25,051 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:05:25,076 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:25,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:25,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:25,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:25,077 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:05:25,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:25,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:25,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:25,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 12:05:25,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:25,078 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:25,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,133 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:25,133 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:25,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:05:25,136 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:05:25,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:05:25,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:05:25,210 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:05:25,212 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:05:25,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:05:25,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:05:25,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:05:25,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:05:25,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:25,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:05:25,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:05:25,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 12:05:25,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:05:25,213 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:05:25,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:05:25,267 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:05:25,268 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:25,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:05:25,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:05:25,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:05:25,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:05:25,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:05:25,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:05:25,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:05:25,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:05:25,278 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:05:25,282 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:05:25,282 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:05:25,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:05:25,285 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:05:25,286 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:05:25,286 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0) = -1*ULTIMATE.start_main_~b~0 + 6 Supporting invariants [] [2020-07-01 12:05:25,315 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:05:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:05:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:25,331 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:05:25,332 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:25,336 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:05:25,336 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:05:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:05:25,369 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:05:25,369 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:05:25,371 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:05:25,371 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:05:25,371 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 27 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-07-01 12:05:25,415 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 27 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 29 states and 44 transitions. Complement of second has 10 states. [2020-07-01 12:05:25,415 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 12:05:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:05:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-07-01 12:05:25,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:05:25,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:25,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 12:05:25,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:25,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 12:05:25,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:05:25,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 44 transitions. [2020-07-01 12:05:25,419 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:05:25,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-07-01 12:05:25,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:05:25,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:05:25,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:05:25,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:05:25,421 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:05:25,421 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:05:25,421 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:05:25,422 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 12:05:25,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:05:25,422 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:05:25,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:05:25,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:05:25 BasicIcfg [2020-07-01 12:05:25,429 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:05:25,432 INFO L168 Benchmark]: Toolchain (without parser) took 3404.54 ms. Allocated memory was 514.9 MB in the beginning and 602.9 MB in the end (delta: 88.1 MB). Free memory was 438.9 MB in the beginning and 562.3 MB in the end (delta: -123.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:05:25,432 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:05:25,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.93 ms. Allocated memory was 514.9 MB in the beginning and 567.3 MB in the end (delta: 52.4 MB). Free memory was 438.9 MB in the beginning and 534.7 MB in the end (delta: -95.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 567.3 MB. Free memory was 534.7 MB in the beginning and 533.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,434 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 ms. Allocated memory is still 567.3 MB. Free memory was 533.3 MB in the beginning and 531.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,434 INFO L168 Benchmark]: RCFGBuilder took 246.92 ms. Allocated memory is still 567.3 MB. Free memory was 531.9 MB in the beginning and 519.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,435 INFO L168 Benchmark]: BlockEncodingV2 took 79.81 ms. Allocated memory is still 567.3 MB. Free memory was 519.4 MB in the beginning and 513.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,435 INFO L168 Benchmark]: TraceAbstraction took 148.35 ms. Allocated memory is still 567.3 MB. Free memory was 513.2 MB in the beginning and 504.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:05:25,436 INFO L168 Benchmark]: BuchiAutomizer took 2571.13 ms. Allocated memory was 567.3 MB in the beginning and 602.9 MB in the end (delta: 35.7 MB). Free memory was 504.4 MB in the beginning and 562.3 MB in the end (delta: -57.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:05:25,440 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 5 locations, 9 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.93 ms. Allocated memory was 514.9 MB in the beginning and 567.3 MB in the end (delta: 52.4 MB). Free memory was 438.9 MB in the beginning and 534.7 MB in the end (delta: -95.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 567.3 MB. Free memory was 534.7 MB in the beginning and 533.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.59 ms. Allocated memory is still 567.3 MB. Free memory was 533.3 MB in the beginning and 531.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 246.92 ms. Allocated memory is still 567.3 MB. Free memory was 531.9 MB in the beginning and 519.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.81 ms. Allocated memory is still 567.3 MB. Free memory was 519.4 MB in the beginning and 513.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.35 ms. Allocated memory is still 567.3 MB. Free memory was 513.2 MB in the beginning and 504.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2571.13 ms. Allocated memory was 567.3 MB in the beginning and 602.9 MB in the end (delta: 35.7 MB). Free memory was 504.4 MB in the beginning and 562.3 MB in the end (delta: -57.9 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function -1 * a + 30 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * b + a and consists of 5 locations. One nondeterministic module has affine ranking function -1 * b + 6 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 2. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 36 SDtfs, 56 SDslu, 6 SDs, 0 SdLazy, 124 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:05:18.786 ----------------------------------------------- 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_oglUfx/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:05:25.851 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check