/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:11:20,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:11:20,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:11:20,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:11:20,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:11:20,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:11:20,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:11:20,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:11:20,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:11:20,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:11:20,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:11:20,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:11:20,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:11:20,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:11:20,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:11:20,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:11:20,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:11:20,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:11:20,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:11:20,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:11:20,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:11:20,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:11:20,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:11:20,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:11:20,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:11:20,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:11:20,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:11:20,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:11:20,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:11:20,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:11:20,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:11:20,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:11:20,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:11:20,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:11:20,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:11:20,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:11:20,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:11:20,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:11:20,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:11:20,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:11:20,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:11:20,993 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:11:21,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:11:21,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:11:21,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:11:21,009 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:11:21,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:11:21,009 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:11:21,009 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:11:21,009 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:11:21,010 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:11:21,011 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:21,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:11:21,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:11:21,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:11:21,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:11:21,011 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:11:21,012 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:11:21,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:11:21,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:11:21,012 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:11:21,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:11:21,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:11:21,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:11:21,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:11:21,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:11:21,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:11:21,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:11:21,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:11:21,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:11:21,203 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:11:21,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:11:21,269 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_oR9h0h/tmp/202c3f1eb13a4c2c93d1532a4cc43eeb/FLAGcea181412 [2020-07-01 12:11:21,596 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:11:21,597 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:11:21,604 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_oR9h0h/tmp/202c3f1eb13a4c2c93d1532a4cc43eeb/FLAGcea181412 [2020-07-01 12:11:21,999 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_oR9h0h/tmp/202c3f1eb13a4c2c93d1532a4cc43eeb [2020-07-01 12:11:22,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:11:22,012 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:11:22,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:11:22,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:11:22,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:11:22,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799f0a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:11:22,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:11:22,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:11:22,272 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:11:22,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:11:22,302 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:11:22,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22 WrapperNode [2020-07-01 12:11:22,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:11:22,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:11:22,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:11:22,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:11:22,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:11:22,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:11:22,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:11:22,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:11:22,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:11:22,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:11:22,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:11:22,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:11:22,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:11:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:11:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:11:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2020-07-01 12:11:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2020-07-01 12:11:22,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:11:22,587 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 12:11:22,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:11:22 BoogieIcfgContainer [2020-07-01 12:11:22,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:11:22,592 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:11:22,592 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:11:22,594 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:11:22,595 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:11:22" (1/1) ... [2020-07-01 12:11:22,609 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-07-01 12:11:22,611 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:11:22,611 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:11:22,612 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:11:22,612 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:11:22,614 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:11:22,615 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:11:22,615 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:11:22,628 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:11:22,645 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 12:11:22,649 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:11:22,651 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:11:22,660 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:11:22,662 INFO L70 RemoveSinkStates]: Removed 11 edges and 5 locations by removing sink states [2020-07-01 12:11:22,664 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:11:22,664 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:11:22,664 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:11:22,665 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:11:22,665 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 11 edges [2020-07-01 12:11:22,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:11:22 BasicIcfg [2020-07-01 12:11:22,666 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:11:22,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:11:22,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:11:22,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:11:22,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:11:22" (1/4) ... [2020-07-01 12:11:22,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c5a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (2/4) ... [2020-07-01 12:11:22,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c5a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:11:22" (3/4) ... [2020-07-01 12:11:22,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c5a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:11:22" (4/4) ... [2020-07-01 12:11:22,674 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:11:22,685 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:11:22,692 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:11:22,705 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:11:22,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:11:22,728 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:11:22,728 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:11:22,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:11:22,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:11:22,729 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:11:22,729 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:11:22,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:11:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-01 12:11:22,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:11:22,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-07-01 12:11:22,820 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:11:22,820 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-07-01 12:11:22,821 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-07-01 12:11:22,821 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-07-01 12:11:22,821 INFO L271 CegarLoopResult]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2020-07-01 12:11:22,821 INFO L268 CegarLoopResult]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2020-07-01 12:11:22,822 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-01 12:11:22,822 INFO L268 CegarLoopResult]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2020-07-01 12:11:22,822 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-01 12:11:22,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:11:22 BasicIcfg [2020-07-01 12:11:22,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:11:22,826 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:11:22,827 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:11:22,831 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:11:22,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:11:22,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:11:22" (1/5) ... [2020-07-01 12:11:22,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a28c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:11:22,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:11:22" (2/5) ... [2020-07-01 12:11:22,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a28c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:11:22,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:11:22" (3/5) ... [2020-07-01 12:11:22,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a28c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:11:22,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:11:22" (4/5) ... [2020-07-01 12:11:22,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a28c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:11:22, skipping insertion in model container [2020-07-01 12:11:22,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:11:22,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:11:22" (5/5) ... [2020-07-01 12:11:22,836 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:11:22,865 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:11:22,865 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:11:22,865 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:11:22,865 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:11:22,865 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:11:22,866 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:11:22,866 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:11:22,866 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:11:22,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 12:11:22,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:11:22,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:11:22,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:11:22,898 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:11:22,898 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:11:22,898 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:11:22,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 12:11:22,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:11:22,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:11:22,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:11:22,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:11:22,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:11:22,905 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [39] ULTIMATE.startENTRY-->L26: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 3#L26true [29] L26-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_1| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{f91_#in~x=|v_f91_#in~xInParam_1|} AuxVars[] AssignedVars[f91_#in~x]< 9#f91ENTRYtrue [2020-07-01 12:11:22,906 INFO L796 eck$LassoCheckResult]: Loop: 9#f91ENTRYtrue [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 10#L16true [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 7#L19true [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 9#f91ENTRYtrue [2020-07-01 12:11:22,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:22,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2199, now seen corresponding path program 1 times [2020-07-01 12:11:22,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:22,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061954656] [2020-07-01 12:11:22,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:22,988 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:22,990 INFO L82 PathProgramCache]: Analyzing trace with hash 71644, now seen corresponding path program 1 times [2020-07-01 12:11:22,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:22,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652625027] [2020-07-01 12:11:22,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,009 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:23,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:23,012 INFO L82 PathProgramCache]: Analyzing trace with hash 65552262, now seen corresponding path program 1 times [2020-07-01 12:11:23,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:23,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195226471] [2020-07-01 12:11:23,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:23,097 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:23,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:23,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:23,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:23,098 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:11:23,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:23,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:23,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:11:23,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:23,099 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:23,114 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 12:11:23,122 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 12:11:23,125 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 12:11:23,135 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 12:11:23,138 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 12:11:23,194 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:23,194 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:23,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:23,210 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:23,210 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_~x=0} Honda state: {f91_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:23,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:23,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:23,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:23,281 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:11:23,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:23,354 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:11:23,356 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:23,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:23,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:23,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:23,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:11:23,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:23,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:23,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:23,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:11:23,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:23,358 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:23,359 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 12:11:23,363 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 12:11:23,365 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 12:11:23,373 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 12:11:23,377 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 12:11:23,419 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:23,425 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:23,429 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 12:11:23,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:23,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:23,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:23,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:23,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:23,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:23,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:23,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:23,472 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 12:11:23,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:23,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:23,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:23,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:23,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:23,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:23,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:23,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:23,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:11:23,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:23,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:23,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:23,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:23,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:23,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:23,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:23,520 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:11:23,525 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:11:23,525 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:23,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:11:23,532 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:11:23,532 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:11:23,533 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2020-07-01 12:11:23,567 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:11:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:23,627 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:11:23,629 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:23,648 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 12:11:23,649 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:23,688 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 12:11:23,710 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:11:23,716 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 12:11:23,717 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states. Second operand 4 states. [2020-07-01 12:11:23,803 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states.. Second operand 4 states. Result 31 states and 39 transitions. Complement of second has 16 states. [2020-07-01 12:11:23,804 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 12:11:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:11:23,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-01 12:11:23,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 12:11:23,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:23,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:11:23,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:23,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:11:23,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:23,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-07-01 12:11:23,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:11:23,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 20 states and 27 transitions. [2020-07-01 12:11:23,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 12:11:23,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-07-01 12:11:23,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2020-07-01 12:11:23,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:11:23,833 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-07-01 12:11:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2020-07-01 12:11:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-01 12:11:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 12:11:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2020-07-01 12:11:23,867 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-07-01 12:11:23,867 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-07-01 12:11:23,867 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:11:23,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2020-07-01 12:11:23,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:11:23,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:11:23,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:11:23,870 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:11:23,870 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:11:23,870 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L26: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 96#L26 [29] L26-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_1| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{f91_#in~x=|v_f91_#in~xInParam_1|} AuxVars[] AssignedVars[f91_#in~x]< 97#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 109#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 102#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 107#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 111#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 112#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 113#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 99#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 106#f91ENTRY [2020-07-01 12:11:23,871 INFO L796 eck$LassoCheckResult]: Loop: 106#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 114#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 100#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 106#f91ENTRY [2020-07-01 12:11:23,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:23,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1787708875, now seen corresponding path program 1 times [2020-07-01 12:11:23,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:23,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863405942] [2020-07-01 12:11:23,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:23,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:23,892 INFO L82 PathProgramCache]: Analyzing trace with hash 71644, now seen corresponding path program 2 times [2020-07-01 12:11:23,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:23,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101029470] [2020-07-01 12:11:23,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,899 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:23,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:23,900 INFO L82 PathProgramCache]: Analyzing trace with hash -40582872, now seen corresponding path program 2 times [2020-07-01 12:11:23,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:23,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895952199] [2020-07-01 12:11:23,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:23,920 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:23,956 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:23,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:23,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:23,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:23,956 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:11:23,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:23,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:23,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:23,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:11:23,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:23,957 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:23,958 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 12:11:23,962 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 12:11:23,965 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 12:11:23,967 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 12:11:23,970 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 12:11:24,008 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:24,008 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:24,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:24,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:24,015 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:24,015 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_~x=0} Honda state: {f91_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:24,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:24,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:24,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:24,054 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret0=0} Honda state: {f91_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:24,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:24,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:24,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:24,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 12:11:24,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:24,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:24,129 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:24,130 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret1=0} Honda state: {f91_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:24,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:24,174 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:24,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:11:24,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:24,248 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:11:24,250 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:24,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:24,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:24,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:24,251 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:11:24,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:24,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:24,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:24,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:11:24,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:24,252 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:24,253 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 12:11:24,256 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 12:11:24,262 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 12:11:24,264 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 12:11:24,272 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 12:11:24,319 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:24,319 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:24,323 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 12:11:24,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:24,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:24,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:24,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:24,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:24,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:24,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:24,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:11:24,367 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 12:11:24,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:24,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:24,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:24,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:24,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:24,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:24,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:24,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:24,407 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 12:11:24,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:24,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:24,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:24,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:24,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:24,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:24,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:24,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:24,452 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 12:11:24,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:24,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:24,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:24,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:24,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:24,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:24,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:24,459 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:11:24,463 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:11:24,464 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:11:24,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:11:24,471 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:11:24,471 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:11:24,472 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2020-07-01 12:11:24,503 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:11:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:24,556 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:11:24,558 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:24,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 12:11:24,594 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:24,622 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 12:11:24,667 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:11:24,667 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-07-01 12:11:24,668 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 19 states and 25 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-07-01 12:11:24,825 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 19 states and 25 transitions. cyclomatic complexity: 8. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 17 states. [2020-07-01 12:11:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 12:11:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:11:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2020-07-01 12:11:24,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2020-07-01 12:11:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 13 letters. Loop has 3 letters. [2020-07-01 12:11:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 10 letters. Loop has 6 letters. [2020-07-01 12:11:24,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:11:24,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2020-07-01 12:11:24,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 12:11:24,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 44 transitions. [2020-07-01 12:11:24,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-07-01 12:11:24,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-07-01 12:11:24,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 44 transitions. [2020-07-01 12:11:24,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:11:24,851 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-07-01 12:11:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 44 transitions. [2020-07-01 12:11:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2020-07-01 12:11:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-01 12:11:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-07-01 12:11:24,857 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-07-01 12:11:24,857 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-07-01 12:11:24,858 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:11:24,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-07-01 12:11:24,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:11:24,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:11:24,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:11:24,860 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:11:24,860 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2020-07-01 12:11:24,860 INFO L794 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L26: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 248#L26 [29] L26-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_1| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{f91_#in~x=|v_f91_#in~xInParam_1|} AuxVars[] AssignedVars[f91_#in~x]< 249#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 255#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 243#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 252#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 257#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 253#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 254#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 246#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 251#f91ENTRY [2020-07-01 12:11:24,861 INFO L796 eck$LassoCheckResult]: Loop: 251#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 258#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 245#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 265#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 266#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 264#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 259#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 242#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 251#f91ENTRY [2020-07-01 12:11:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:24,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1787708875, now seen corresponding path program 3 times [2020-07-01 12:11:24,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:24,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225817666] [2020-07-01 12:11:24,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,881 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:24,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1847548001, now seen corresponding path program 1 times [2020-07-01 12:11:24,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:24,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852856288] [2020-07-01 12:11:24,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,905 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:24,906 INFO L82 PathProgramCache]: Analyzing trace with hash -52498989, now seen corresponding path program 4 times [2020-07-01 12:11:24,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:11:24,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973345784] [2020-07-01 12:11:24,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:11:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:24,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:11:25,025 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:25,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:25,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:25,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:25,026 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:11:25,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:25,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:25,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:11:25,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:25,027 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:25,028 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 12:11:25,030 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 12:11:25,032 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 12:11:25,034 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 12:11:25,040 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 12:11:25,068 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:25,068 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:25,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:25,077 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:25,077 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret1=0} Honda state: {f91_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:25,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:25,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:25,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret0=0} Honda state: {f91_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:25,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:25,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:11:25,151 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:11:25,183 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:11:25,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:11:25,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:11:25,225 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:11:25,254 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:11:25,254 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:11:25,254 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:11:25,254 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:11:25,254 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:11:25,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:11:25,255 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:11:25,255 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:11:25,255 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:11:25,255 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:11:25,256 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 12:11:25,259 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 12:11:25,261 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 12:11:25,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:11:25,272 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 12:11:25,315 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:11:25,315 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,319 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 12:11:25,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:25,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:25,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:25,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:25,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:25,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:25,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:25,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,356 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 12:11:25,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:25,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:25,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:25,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:25,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:25,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:25,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:25,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,394 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 12:11:25,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:25,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:25,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:25,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:25,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:25,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:25,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:25,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,432 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 12:11:25,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:11:25,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:11:25,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:11:25,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:11:25,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:11:25,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:11:25,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:11:25,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:11:25,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:11:25,442 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:11:25,444 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:11:25,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:11:25,444 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:11:25,444 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2020-07-01 12:11:25,474 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:11:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:11:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:25,505 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:11:25,506 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:11:25,538 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-01 12:11:25,540 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:11:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:11:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:40,970 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:11:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:11:40,985 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:11:40,985 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 7 predicates after loop cannibalization [2020-07-01 12:11:40,986 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 7 loop predicates [2020-07-01 12:11:40,986 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 26 states and 33 transitions. cyclomatic complexity: 9 Second operand 9 states. [2020-07-01 12:12:13,411 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 26 states and 33 transitions. cyclomatic complexity: 9. Second operand 9 states. Result 377 states and 496 transitions. Complement of second has 174 states. [2020-07-01 12:12:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 8 non-accepting loop states 1 accepting loop states [2020-07-01 12:12:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 12:12:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 36 transitions. [2020-07-01 12:12:13,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 36 transitions. Stem has 10 letters. Loop has 8 letters. [2020-07-01 12:12:13,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:12:13,416 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:12:13,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:12:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:12:13,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:12:13,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:12:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:12:13,503 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-01 12:12:13,504 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:12:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:12:19,152 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2020-07-01 12:12:19,153 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 26 states and 33 transitions. cyclomatic complexity: 9 Second operand 9 states. [2020-07-01 12:13:00,526 WARN L192 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 31 [2020-07-01 12:13:15,811 WARN L192 SmtUtils]: Spent 10.13 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-07-01 12:13:21,184 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 26 states and 33 transitions. cyclomatic complexity: 9. Second operand 9 states. Result 255 states and 321 transitions. Complement of second has 144 states. [2020-07-01 12:13:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 8 non-accepting loop states 1 accepting loop states [2020-07-01 12:13:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-01 12:13:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 26 transitions. [2020-07-01 12:13:21,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 10 letters. Loop has 8 letters. [2020-07-01 12:13:21,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:21,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 18 letters. Loop has 8 letters. [2020-07-01 12:13:21,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:21,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 26 transitions. Stem has 10 letters. Loop has 16 letters. [2020-07-01 12:13:21,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:21,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 321 transitions. [2020-07-01 12:13:21,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 37 [2020-07-01 12:13:21,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 79 states and 120 transitions. [2020-07-01 12:13:21,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-07-01 12:13:21,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-07-01 12:13:21,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2020-07-01 12:13:21,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:13:21,213 INFO L688 BuchiCegarLoop]: Abstraction has 79 states and 120 transitions. [2020-07-01 12:13:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2020-07-01 12:13:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 31. [2020-07-01 12:13:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-01 12:13:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2020-07-01 12:13:21,222 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-07-01 12:13:21,222 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-07-01 12:13:21,222 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:13:21,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2020-07-01 12:13:21,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 12:13:21,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:13:21,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:13:21,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:13:21,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2020-07-01 12:13:21,225 INFO L794 eck$LassoCheckResult]: Stem: 1402#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L26: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 1392#L26 [29] L26-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_1| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{f91_#in~x=|v_f91_#in~xInParam_1|} AuxVars[] AssignedVars[f91_#in~x]< 1393#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1418#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 1397#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 1417#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1420#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 1421#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 1413#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 1399#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 1403#f91ENTRY [2020-07-01 12:13:21,225 INFO L796 eck$LassoCheckResult]: Loop: 1403#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1410#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 1396#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 1405#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1410#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 1396#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 1405#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1412#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 1408#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 1409#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 1395#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 1404#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 1414#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 1406#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 1407#f91EXIT >[44] f91EXIT-->L19-2: AOR: Formula: (= |v_f91_#t~ret1_4| |v_f91_#resOutParam_3|) InVars {f91_#res=|v_f91_#resOutParam_3|} OutVars{f91_#t~ret1=|v_f91_#t~ret1_4|} AuxVars[] AssignedVars[f91_#t~ret1] LVA: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x] 1394#L19-2 [30] L19-2-->f91FINAL: Formula: (= |v_f91_#res_2| |v_f91_#t~ret1_3|) InVars {f91_#t~ret1=|v_f91_#t~ret1_3|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_3|, f91_#t~ret1=|v_f91_#t~ret1_2|, f91_#res=|v_f91_#res_2|} AuxVars[] AssignedVars[f91_#t~ret0, f91_#t~ret1, f91_#res] 1401#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 1416#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 1400#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 1403#f91ENTRY [2020-07-01 12:13:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:21,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1787708875, now seen corresponding path program 5 times [2020-07-01 12:13:21,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:13:21,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570668779] [2020-07-01 12:13:21,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:13:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:21,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:13:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2105170838, now seen corresponding path program 1 times [2020-07-01 12:13:21,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:13:21,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316198853] [2020-07-01 12:13:21,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:13:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:21,262 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:13:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:21,263 INFO L82 PathProgramCache]: Analyzing trace with hash 185199842, now seen corresponding path program 1 times [2020-07-01 12:13:21,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:13:21,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293775708] [2020-07-01 12:13:21,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:13:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-01 12:13:21,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293775708] [2020-07-01 12:13:21,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278803206] [2020-07-01 12:13:21,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:13:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:21,530 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:13:21,532 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:13:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-01 12:13:21,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:13:21,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2020-07-01 12:13:21,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965849368] [2020-07-01 12:13:21,853 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-07-01 12:13:22,084 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:13:22,084 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:13:22,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:13:22,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:13:22,085 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:13:22,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:13:22,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:13:22,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:13:22,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:13:22,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:13:22,086 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:13:22,087 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 12:13:22,106 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 12:13:22,113 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 12:13:22,120 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 12:13:22,127 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 12:13:22,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:13:22,211 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:13:22,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:13:22,215 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:13:22,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:13:22,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:13:22,255 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:13:22,284 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:13:22,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:13:22,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:13:22,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:13:22,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:13:22,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:13:22,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:13:22,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:13:22,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:13:22,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:13:22,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:13:22,286 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 12:13:22,308 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 12:13:22,316 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 12:13:22,323 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 12:13:22,330 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 12:13:22,411 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:13:22,412 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:13:22,415 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 12:13:22,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:13:22,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:13:22,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:13:22,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:13:22,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:13:22,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:13:22,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:13:22,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:13:22,423 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:13:22,424 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:13:22,426 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:13:22,426 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:13:22,426 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:13:22,427 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2020-07-01 12:13:22,456 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:13:22,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:22,513 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:13:22,514 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:13:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:22,605 INFO L264 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 12:13:22,607 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:13:22,966 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-01 12:13:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:23,303 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:13:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:13:23,329 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:13:23,329 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 12:13:23,330 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 9 loop predicates [2020-07-01 12:13:23,330 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 40 transitions. cyclomatic complexity: 11 Second operand 11 states. [2020-07-01 12:13:28,298 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 40 transitions. cyclomatic complexity: 11. Second operand 11 states. Result 10265 states and 20667 transitions. Complement of second has 7557 states. [2020-07-01 12:13:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 32 states 2 stem states 29 non-accepting loop states 1 accepting loop states [2020-07-01 12:13:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 12:13:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 74 transitions. [2020-07-01 12:13:28,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 74 transitions. Stem has 10 letters. Loop has 19 letters. [2020-07-01 12:13:28,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:28,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 74 transitions. Stem has 29 letters. Loop has 19 letters. [2020-07-01 12:13:28,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:28,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 32 states and 74 transitions. Stem has 10 letters. Loop has 38 letters. [2020-07-01 12:13:28,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:13:28,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10265 states and 20667 transitions. [2020-07-01 12:13:28,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 90 [2020-07-01 12:13:28,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10265 states to 939 states and 1555 transitions. [2020-07-01 12:13:28,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-07-01 12:13:28,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2020-07-01 12:13:28,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 939 states and 1555 transitions. [2020-07-01 12:13:28,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:13:28,691 INFO L688 BuchiCegarLoop]: Abstraction has 939 states and 1555 transitions. [2020-07-01 12:13:28,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states and 1555 transitions. [2020-07-01 12:13:28,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 715. [2020-07-01 12:13:28,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-07-01 12:13:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1057 transitions. [2020-07-01 12:13:28,755 INFO L711 BuchiCegarLoop]: Abstraction has 715 states and 1057 transitions. [2020-07-01 12:13:28,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:13:28,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-01 12:13:28,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-01 12:13:28,761 INFO L87 Difference]: Start difference. First operand 715 states and 1057 transitions. Second operand 10 states. [2020-07-01 12:13:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:13:29,402 INFO L93 Difference]: Finished difference Result 546 states and 738 transitions. [2020-07-01 12:13:29,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-01 12:13:29,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 738 transitions. [2020-07-01 12:13:29,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45 [2020-07-01 12:13:29,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 254 states and 352 transitions. [2020-07-01 12:13:29,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2020-07-01 12:13:29,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 102 [2020-07-01 12:13:29,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 352 transitions. [2020-07-01 12:13:29,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:13:29,421 INFO L688 BuchiCegarLoop]: Abstraction has 254 states and 352 transitions. [2020-07-01 12:13:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 352 transitions. [2020-07-01 12:13:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 215. [2020-07-01 12:13:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-01 12:13:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 287 transitions. [2020-07-01 12:13:29,431 INFO L711 BuchiCegarLoop]: Abstraction has 215 states and 287 transitions. [2020-07-01 12:13:29,431 INFO L591 BuchiCegarLoop]: Abstraction has 215 states and 287 transitions. [2020-07-01 12:13:29,431 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:13:29,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 287 transitions. [2020-07-01 12:13:29,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45 [2020-07-01 12:13:29,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:13:29,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:13:29,435 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2020-07-01 12:13:29,435 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [7, 5, 4, 4, 3, 3, 3, 2, 2] [2020-07-01 12:13:29,436 INFO L794 eck$LassoCheckResult]: Stem: 20826#ULTIMATE.startENTRY [39] ULTIMATE.startENTRY-->L26: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) InVars {} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 20824#L26 [29] L26-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_1| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{f91_#in~x=|v_f91_#in~xInParam_1|} AuxVars[] AssignedVars[f91_#in~x]< 20825#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20939#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20832#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20833#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20937#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20934#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20833#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20938#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 20936#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20935#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 20830#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 20840#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20841#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 21015#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20965#f91EXIT >[44] f91EXIT-->L19-2: AOR: Formula: (= |v_f91_#t~ret1_4| |v_f91_#resOutParam_3|) InVars {f91_#res=|v_f91_#resOutParam_3|} OutVars{f91_#t~ret1=|v_f91_#t~ret1_4|} AuxVars[] AssignedVars[f91_#t~ret1] LVA: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x] 20962#L19-2 [30] L19-2-->f91FINAL: Formula: (= |v_f91_#res_2| |v_f91_#t~ret1_3|) InVars {f91_#t~ret1=|v_f91_#t~ret1_3|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_3|, f91_#t~ret1=|v_f91_#t~ret1_2|, f91_#res=|v_f91_#res_2|} AuxVars[] AssignedVars[f91_#t~ret0, f91_#t~ret1, f91_#res] 20961#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20958#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 20827#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 20828#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20971#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20908#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20907#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20910#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20838#L19 [2020-07-01 12:13:29,436 INFO L796 eck$LassoCheckResult]: Loop: 20838#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20871#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20994#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20837#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20871#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20994#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20837#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20871#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20876#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 20877#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20870#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 20864#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 20956#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20883#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 20869#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20862#f91EXIT >[44] f91EXIT-->L19-2: AOR: Formula: (= |v_f91_#t~ret1_4| |v_f91_#resOutParam_3|) InVars {f91_#res=|v_f91_#resOutParam_3|} OutVars{f91_#t~ret1=|v_f91_#t~ret1_4|} AuxVars[] AssignedVars[f91_#t~ret1] LVA: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x] 20866#L19-2 [30] L19-2-->f91FINAL: Formula: (= |v_f91_#res_2| |v_f91_#t~ret1_3|) InVars {f91_#t~ret1=|v_f91_#t~ret1_3|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_3|, f91_#t~ret1=|v_f91_#t~ret1_2|, f91_#res=|v_f91_#res_2|} AuxVars[] AssignedVars[f91_#t~ret0, f91_#t~ret1, f91_#res] 20836#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20839#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 20996#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 20998#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 21021#L16 [37] L16-->f91FINAL: Formula: (and (< 100 v_f91_~x_1) (= |v_f91_#res_1| (+ v_f91_~x_1 (- 10)))) InVars {f91_~x=v_f91_~x_1} OutVars{f91_#res=|v_f91_#res_1|, f91_~x=v_f91_~x_1} AuxVars[] AssignedVars[f91_#res] 21007#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20995#f91EXIT >[44] f91EXIT-->L19-2: AOR: Formula: (= |v_f91_#t~ret1_4| |v_f91_#resOutParam_3|) InVars {f91_#res=|v_f91_#resOutParam_3|} OutVars{f91_#t~ret1=|v_f91_#t~ret1_4|} AuxVars[] AssignedVars[f91_#t~ret1] LVA: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x] 20967#L19-2 [30] L19-2-->f91FINAL: Formula: (= |v_f91_#res_2| |v_f91_#t~ret1_3|) InVars {f91_#t~ret1=|v_f91_#t~ret1_3|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_3|, f91_#t~ret1=|v_f91_#t~ret1_2|, f91_#res=|v_f91_#res_2|} AuxVars[] AssignedVars[f91_#t~ret0, f91_#t~ret1, f91_#res] 20963#f91FINAL [35] f91FINAL-->f91EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 20964#f91EXIT >[46] f91EXIT-->L19-1: AOR: Formula: (= |v_f91_#t~ret0_4| |v_f91_#resOutParam_2|) InVars {f91_#res=|v_f91_#resOutParam_2|} OutVars{f91_#t~ret0=|v_f91_#t~ret0_4|} AuxVars[] AssignedVars[f91_#t~ret0] LVA: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x] 20923#L19-1 [33] L19-1-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_3| |v_f91_#t~ret0_5|) InVars {f91_#t~ret0=|v_f91_#t~ret0_5|} OutVars{f91_#in~x=|v_f91_#in~xInParam_3|} AuxVars[] AssignedVars[f91_#in~x]< 20920#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20933#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20909#L19 [34] L19-->f91ENTRY: Formula: (= |v_f91_#in~xInParam_2| (+ v_f91_~x_5 11)) InVars {f91_~x=v_f91_~x_5} OutVars{f91_#in~x=|v_f91_#in~xInParam_2|} AuxVars[] AssignedVars[f91_#in~x]< 20907#f91ENTRY [42] f91ENTRY-->L16: Formula: (= v_f91_~x_4 |v_f91_#in~x_1|) InVars {f91_#in~x=|v_f91_#in~x_1|} OutVars{f91_#in~x=|v_f91_#in~x_1|, f91_~x=v_f91_~x_4} AuxVars[] AssignedVars[f91_~x] 20910#L16 [47] L16-->L19: Formula: (>= 100 v_f91_~x_2) InVars {f91_~x=v_f91_~x_2} OutVars{f91_~x=v_f91_~x_2} AuxVars[] AssignedVars[] 20838#L19 [2020-07-01 12:13:29,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:29,437 INFO L82 PathProgramCache]: Analyzing trace with hash 551048770, now seen corresponding path program 2 times [2020-07-01 12:13:29,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:13:29,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277021597] [2020-07-01 12:13:29,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:13:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-01 12:13:29,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277021597] [2020-07-01 12:13:29,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:13:29,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-01 12:13:29,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212493120] [2020-07-01 12:13:29,603 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:13:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:13:29,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1128724048, now seen corresponding path program 2 times [2020-07-01 12:13:29,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:13:29,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847316854] [2020-07-01 12:13:29,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:13:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:13:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 19 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-01 12:13:30,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847316854] [2020-07-01 12:13:30,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994656077] [2020-07-01 12:13:30,001 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:13:30,042 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-01 12:13:30,043 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-01 12:13:30,044 INFO L264 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 12:13:30,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:13:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-01 12:13:30,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:13:30,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 15 [2020-07-01 12:13:30,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492184514] [2020-07-01 12:13:30,103 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:13:30,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:13:30,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-01 12:13:30,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-01 12:13:30,104 INFO L87 Difference]: Start difference. First operand 215 states and 287 transitions. cyclomatic complexity: 77 Second operand 9 states. [2020-07-01 12:13:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:13:30,489 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2020-07-01 12:13:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-01 12:13:30,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 71 transitions. [2020-07-01 12:13:30,496 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:13:30,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2020-07-01 12:13:30,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:13:30,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:13:30,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:13:30,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:13:30,496 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:13:30,496 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:13:30,496 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:13:30,497 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 12:13:30,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:13:30,497 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:13:30,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:13:30,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:13:30 BasicIcfg [2020-07-01 12:13:30,503 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:13:30,505 INFO L168 Benchmark]: Toolchain (without parser) took 128492.85 ms. Allocated memory was 649.6 MB in the beginning and 881.3 MB in the end (delta: 231.7 MB). Free memory was 557.4 MB in the beginning and 567.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 221.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,505 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:13:30,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.77 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 557.4 MB in the beginning and 649.2 MB in the end (delta: -91.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 685.8 MB. Free memory was 649.2 MB in the beginning and 647.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,506 INFO L168 Benchmark]: Boogie Preprocessor took 17.31 ms. Allocated memory is still 685.8 MB. Free memory was 647.8 MB in the beginning and 646.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,507 INFO L168 Benchmark]: RCFGBuilder took 236.08 ms. Allocated memory is still 685.8 MB. Free memory was 646.5 MB in the beginning and 629.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,507 INFO L168 Benchmark]: BlockEncodingV2 took 73.70 ms. Allocated memory is still 685.8 MB. Free memory was 629.8 MB in the beginning and 625.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,508 INFO L168 Benchmark]: TraceAbstraction took 158.73 ms. Allocated memory is still 685.8 MB. Free memory was 624.4 MB in the beginning and 614.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,508 INFO L168 Benchmark]: BuchiAutomizer took 127676.63 ms. Allocated memory was 685.8 MB in the beginning and 881.3 MB in the end (delta: 195.6 MB). Free memory was 613.6 MB in the beginning and 567.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 241.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:13:30,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 18 edges - StatisticsResult: Encoded RCFG 9 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.77 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 557.4 MB in the beginning and 649.2 MB in the end (delta: -91.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 685.8 MB. Free memory was 649.2 MB in the beginning and 647.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.31 ms. Allocated memory is still 685.8 MB. Free memory was 647.8 MB in the beginning and 646.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 236.08 ms. Allocated memory is still 685.8 MB. Free memory was 646.5 MB in the beginning and 629.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.70 ms. Allocated memory is still 685.8 MB. Free memory was 629.8 MB in the beginning and 625.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.73 ms. Allocated memory is still 685.8 MB. Free memory was 624.4 MB in the beginning and 614.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 127676.63 ms. Allocated memory was 685.8 MB in the beginning and 881.3 MB in the end (delta: 195.6 MB). Free memory was 613.6 MB in the beginning and 567.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 241.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 9 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=9occurred 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, 4 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 4 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -2 * \old(x) + 211 and consists of 5 locations. One nondeterministic module has affine ranking function -2 * \old(x) + 211 and consists of 6 locations. One nondeterministic module has affine ranking function -2 * \old(x) + 201 and consists of 11 locations. One nondeterministic module has affine ranking function -1 * \old(x) + 90 and consists of 32 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.6s and 6 iterations. TraceHistogramMax:7. Analysis of lassos took 3.8s. Construction of modules took 42.2s. Büchi inclusion checks took 80.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 317 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 4. Nontrivial modules had stage [3, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/22 HoareTripleCheckerStatistics: 98 SDtfs, 190 SDslu, 146 SDs, 0 SdLazy, 640 SolverSat, 238 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 42.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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 12:11:18.756 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_oR9h0h/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:13:31.147 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check