/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:42:22,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:42:22,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:42:22,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:42:22,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:42:22,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:42:22,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:42:22,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:42:22,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:42:22,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:42:22,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:42:22,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:42:22,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:42:22,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:42:22,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:42:22,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:42:22,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:42:22,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:42:22,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:42:22,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:42:22,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:42:22,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:42:22,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:42:22,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:42:22,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:42:22,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:42:22,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:42:22,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:42:22,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:42:22,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:42:22,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:42:22,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:42:22,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:42:22,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:42:22,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:42:22,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:42:22,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:42:22,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:42:22,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:42:23,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:42:23,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:42:23,002 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:42:23,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:42:23,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:42:23,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:42:23,018 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:42:23,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:42:23,018 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:42:23,018 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:42:23,019 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:42:23,019 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:42:23,019 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:42:23,019 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:42:23,019 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:42:23,019 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:42:23,020 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:42:23,020 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:23,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:42:23,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:42:23,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:42:23,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:42:23,021 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:42:23,021 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:42:23,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:42:23,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:42:23,022 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:42:23,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:42:23,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:42:23,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:42:23,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:42:23,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:42:23,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:42:23,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:42:23,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:42:23,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:42:23,204 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:42:23,205 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:42:23,274 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_s1KFbi/tmp/e83d48cd32b149ef8dc5b0a7fb8199c4/FLAG1e22af043 [2020-07-01 12:42:23,615 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:42:23,615 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:42:23,622 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_s1KFbi/tmp/e83d48cd32b149ef8dc5b0a7fb8199c4/FLAG1e22af043 [2020-07-01 12:42:24,017 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_s1KFbi/tmp/e83d48cd32b149ef8dc5b0a7fb8199c4 [2020-07-01 12:42:24,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:42:24,030 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:42:24,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:42:24,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:42:24,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:42:24,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448562df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:42:24,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:42:24,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:42:24,244 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:42:24,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:42:24,318 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:42:24,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24 WrapperNode [2020-07-01 12:42:24,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:42:24,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:42:24,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:42:24,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:42:24,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:42:24,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:42:24,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:42:24,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:42:24,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:42:24,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:42:24,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:42:24,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:42:24,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:42:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:42:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:42:24,595 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:42:24,595 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:42:24,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:42:24 BoogieIcfgContainer [2020-07-01 12:42:24,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:42:24,600 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:42:24,600 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:42:24,602 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:42:24,603 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:42:24" (1/1) ... [2020-07-01 12:42:24,615 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 12:42:24,617 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:42:24,617 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:42:24,618 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:42:24,618 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:42:24,620 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:42:24,621 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:42:24,621 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:42:24,636 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:42:24,652 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 12:42:24,656 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:42:24,657 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:42:24,673 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:42:24,675 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 12:42:24,677 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:42:24,677 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:42:24,677 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:42:24,677 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:42:24,678 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2020-07-01 12:42:24,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:42:24 BasicIcfg [2020-07-01 12:42:24,678 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:42:24,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:42:24,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:42:24,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:42:24,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:42:24" (1/4) ... [2020-07-01 12:42:24,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f64784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (2/4) ... [2020-07-01 12:42:24,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f64784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:42:24" (3/4) ... [2020-07-01 12:42:24,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f64784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:42:24" (4/4) ... [2020-07-01 12:42:24,687 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:42:24,699 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:42:24,707 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:42:24,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:42:24,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:42:24,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:42:24,745 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:42:24,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:42:24,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:42:24,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:42:24,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:42:24,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:42:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 12:42:24,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:42:24,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 12:42:24,824 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:42:24,825 INFO L268 CegarLoopResult]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-07-01 12:42:24,825 INFO L271 CegarLoopResult]: At program point L23-2(lines 20 30) the Hoare annotation is: true [2020-07-01 12:42:24,825 INFO L268 CegarLoopResult]: For program point L21(lines 21 29) no Hoare annotation was computed. [2020-07-01 12:42:24,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:42:24 BasicIcfg [2020-07-01 12:42:24,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:42:24,835 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:42:24,835 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:42:24,839 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:42:24,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:42:24,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:42:24" (1/5) ... [2020-07-01 12:42:24,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c72dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:42:24,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:42:24" (2/5) ... [2020-07-01 12:42:24,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c72dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:42:24,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:42:24" (3/5) ... [2020-07-01 12:42:24,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c72dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:42:24,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:42:24" (4/5) ... [2020-07-01 12:42:24,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c72dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:42:24, skipping insertion in model container [2020-07-01 12:42:24,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:42:24,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:42:24" (5/5) ... [2020-07-01 12:42:24,845 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:42:24,873 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:42:24,874 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:42:24,874 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:42:24,874 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:42:24,874 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:42:24,874 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:42:24,874 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:42:24,875 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:42:24,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:42:24,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:42:24,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:24,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:24,902 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:42:24,902 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:42:24,902 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:42:24,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:42:24,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:42:24,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:24,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:24,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:42:24,904 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:42:24,909 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-07-01 12:42:24,909 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 4#L21true [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-07-01 12:42:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:24,916 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-07-01 12:42:24,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:24,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662305555] [2020-07-01 12:42:24,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:24,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:24,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:24,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 1 times [2020-07-01 12:42:24,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:24,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741353140] [2020-07-01 12:42:24,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,013 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:25,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:25,015 INFO L82 PathProgramCache]: Analyzing trace with hash 64464, now seen corresponding path program 1 times [2020-07-01 12:42:25,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:25,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400493863] [2020-07-01 12:42:25,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,029 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:25,084 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:25,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:25,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:25,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:25,086 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:42:25,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:25,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:25,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:42:25,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:25,087 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:25,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:42:25,117 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 12:42:25,122 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 12:42:25,131 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 12:42:25,135 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 12:42:25,139 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 12:42:25,228 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:25,229 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:25,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:25,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:25,246 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:25,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:25,284 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:25,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:25,317 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:42:25,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:25,389 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:42:25,391 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:25,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:25,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:25,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:25,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:42:25,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:25,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:25,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:25,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:42:25,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:25,393 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:25,395 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 12:42:25,399 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 12:42:25,403 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 12:42:25,410 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 12:42:25,414 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 12:42:25,417 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 12:42:25,499 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:25,505 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:25,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:42:25,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:25,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:25,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:25,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:25,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:42:25,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:42:25,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:25,564 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 12:42:25,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:25,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:25,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:25,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:25,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:42:25,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:42:25,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:25,614 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 12:42:25,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:25,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:25,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:25,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:25,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:25,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:25,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:25,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:42:25,628 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:42:25,628 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:25,635 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:42:25,635 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:42:25,635 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:42:25,636 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:42:25,670 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:42:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:25,700 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:42:25,702 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:25,717 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:25,717 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:25,733 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 12:42:25,757 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:42:25,762 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:42:25,763 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 12:42:25,807 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 13 states and 24 transitions. Complement of second has 4 states. [2020-07-01 12:42:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:42:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:42:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 12:42:25,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:42:25,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:25,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:42:25,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:25,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:42:25,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:25,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 24 transitions. [2020-07-01 12:42:25,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:42:25,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 12:42:25,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 12:42:25,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 12:42:25,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 24 transitions. [2020-07-01 12:42:25,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:42:25,828 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 12:42:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 24 transitions. [2020-07-01 12:42:25,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-01 12:42:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:42:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2020-07-01 12:42:25,858 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 12:42:25,858 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 12:42:25,858 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:42:25,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 23 transitions. [2020-07-01 12:42:25,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:42:25,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:25,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:25,860 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:42:25,860 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:42:25,860 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 58#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 51#L21 [2020-07-01 12:42:25,860 INFO L796 eck$LassoCheckResult]: Loop: 51#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 54#L23 [48] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 |v_ULTIMATE.start_main_#t~nondet5_3|) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet4_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 50#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 51#L21 [2020-07-01 12:42:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:25,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2078, now seen corresponding path program 1 times [2020-07-01 12:42:25,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:25,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485796236] [2020-07-01 12:42:25,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:25,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:25,871 INFO L82 PathProgramCache]: Analyzing trace with hash 63985, now seen corresponding path program 1 times [2020-07-01 12:42:25,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:25,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487556988] [2020-07-01 12:42:25,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:25,884 INFO L82 PathProgramCache]: Analyzing trace with hash 61939892, now seen corresponding path program 1 times [2020-07-01 12:42:25,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:25,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918412015] [2020-07-01 12:42:25,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:25,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:25,928 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:25,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:25,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:25,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:25,929 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:42:25,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:25,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:25,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:25,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:42:25,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:25,930 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:25,932 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 12:42:25,936 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 12:42:25,942 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 12:42:25,946 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 12:42:25,956 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 12:42:25,960 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 12:42:25,971 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 12:42:26,069 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:26,069 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:26,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:26,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:26,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:26,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:26,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:26,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:26,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:26,122 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:26,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:26,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:26,164 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:26,165 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:26,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:26,198 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 12:42:26,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:42:26,235 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:26,317 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:42:26,319 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:26,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:26,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:26,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:26,320 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:42:26,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:26,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:26,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:26,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:42:26,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:26,320 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:26,323 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 12:42:26,331 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 12:42:26,335 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 12:42:26,338 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 12:42:26,366 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 12:42:26,371 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 12:42:26,378 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 12:42:26,470 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:26,471 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:26,475 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 12:42:26,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:26,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:26,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:26,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:26,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:42:26,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:42:26,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:26,520 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 12:42:26,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:26,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:26,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:26,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:26,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:26,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:26,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:26,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:26,560 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 12:42:26,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:26,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:26,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:26,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:26,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:42:26,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:42:26,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:26,611 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 12:42:26,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:26,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:26,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:26,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:26,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:26,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:26,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:26,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:42:26,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:42:26,623 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/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 12:42:26,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:42:26,627 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:42:26,627 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:42:26,627 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 12:42:26,657 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:42:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:26,682 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:42:26,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:26,689 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:26,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:26,721 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 12:42:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:26,727 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:26,727 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:26,753 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:42:26,753 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 12:42:26,754 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-07-01 12:42:26,809 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 30 states and 58 transitions. Complement of second has 8 states. [2020-07-01 12:42:26,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 12:42:26,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:42:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-01 12:42:26,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 12:42:26,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:26,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:42:26,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:26,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:42:26,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:26,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 58 transitions. [2020-07-01 12:42:26,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:42:26,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 55 transitions. [2020-07-01 12:42:26,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 12:42:26,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 12:42:26,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 55 transitions. [2020-07-01 12:42:26,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:42:26,819 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 55 transitions. [2020-07-01 12:42:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 55 transitions. [2020-07-01 12:42:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2020-07-01 12:42:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-01 12:42:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 45 transitions. [2020-07-01 12:42:26,822 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-07-01 12:42:26,823 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-07-01 12:42:26,823 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:42:26,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 45 transitions. [2020-07-01 12:42:26,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:42:26,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:26,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:26,824 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:42:26,825 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:42:26,825 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 147#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 148#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 144#L23 [2020-07-01 12:42:26,825 INFO L796 eck$LassoCheckResult]: Loop: 144#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 151#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 154#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 144#L23 [2020-07-01 12:42:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:26,825 INFO L82 PathProgramCache]: Analyzing trace with hash 64452, now seen corresponding path program 1 times [2020-07-01 12:42:26,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:26,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160512667] [2020-07-01 12:42:26,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,836 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:26,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:26,836 INFO L82 PathProgramCache]: Analyzing trace with hash 66374, now seen corresponding path program 1 times [2020-07-01 12:42:26,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:26,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884709630] [2020-07-01 12:42:26,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126115, now seen corresponding path program 1 times [2020-07-01 12:42:26,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:26,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866515936] [2020-07-01 12:42:26,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:26,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:26,890 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:26,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:26,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:26,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:26,891 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:42:26,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:26,891 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:26,891 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:26,891 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:42:26,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:26,892 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:26,893 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 12:42:26,899 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 12:42:26,903 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 12:42:26,907 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 12:42:26,910 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 12:42:26,924 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 12:42:26,927 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 12:42:27,006 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:27,007 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:27,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,159 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,159 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,196 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,196 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,268 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,300 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 12:42:27,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:42:27,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,400 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:42:27,401 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:27,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:27,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:27,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:27,402 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:42:27,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:27,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:27,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:27,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:42:27,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:27,403 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:27,404 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 12:42:27,414 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 12:42:27,417 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 12:42:27,420 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 12:42:27,425 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 12:42:27,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:42:27,433 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 12:42:27,494 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:27,494 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 12:42:27,497 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 12:42:27,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:27,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:27,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:27,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:27,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:27,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:27,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:27,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:27,534 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 12:42:27,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:27,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:27,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:27,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:27,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:27,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:27,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:27,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:27,571 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 12:42:27,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:27,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:27,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:27,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:27,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:27,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:27,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:27,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 12:42:27,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:42:27,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:27,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:27,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:27,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:27,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:27,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:27,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:27,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:42:27,616 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:42:27,616 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/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 12:42:27,619 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:42:27,620 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:42:27,620 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:42:27,620 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-07-01 12:42:27,649 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:42:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:27,666 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:42:27,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:27,671 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:27,671 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:27,687 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 12:42:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:27,698 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:27,698 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:27,700 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:42:27,700 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 12:42:27,700 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28 Second operand 4 states. [2020-07-01 12:42:27,771 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 51 states and 103 transitions. Complement of second has 14 states. [2020-07-01 12:42:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:42:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:42:27,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-07-01 12:42:27,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 12:42:27,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:27,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:42:27,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:27,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 12:42:27,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:27,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 103 transitions. [2020-07-01 12:42:27,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 12:42:27,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 45 states and 95 transitions. [2020-07-01 12:42:27,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-01 12:42:27,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-07-01 12:42:27,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 95 transitions. [2020-07-01 12:42:27,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:42:27,780 INFO L688 BuchiCegarLoop]: Abstraction has 45 states and 95 transitions. [2020-07-01 12:42:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 95 transitions. [2020-07-01 12:42:27,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-07-01 12:42:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-01 12:42:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 81 transitions. [2020-07-01 12:42:27,785 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-07-01 12:42:27,785 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-07-01 12:42:27,785 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:42:27,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 81 transitions. [2020-07-01 12:42:27,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 12:42:27,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:27,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:27,787 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:42:27,787 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:42:27,788 INFO L794 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 287#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 305#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 288#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 289#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 293#L21 [47] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 282#L23-2 [2020-07-01 12:42:27,788 INFO L796 eck$LassoCheckResult]: Loop: 282#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 283#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 282#L23-2 [2020-07-01 12:42:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:27,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126128, now seen corresponding path program 1 times [2020-07-01 12:42:27,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:27,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360985733] [2020-07-01 12:42:27,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,801 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:27,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:27,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 2 times [2020-07-01 12:42:27,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:27,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976563766] [2020-07-01 12:42:27,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,809 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:27,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1594727234, now seen corresponding path program 1 times [2020-07-01 12:42:27,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:27,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995849994] [2020-07-01 12:42:27,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:27,823 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:27,840 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:27,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:27,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:27,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:27,840 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:42:27,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:27,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:27,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:27,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:42:27,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:27,841 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:27,842 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 12:42:27,845 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 12:42:27,848 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 12:42:27,851 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 12:42:27,857 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 12:42:27,860 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 12:42:27,921 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:27,921 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:27,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,929 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:27,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:27,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 12:42:27,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:27,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:28,000 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:42:28,001 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:28,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:28,032 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:28,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:42:28,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:28,101 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:42:28,102 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:28,103 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:28,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:28,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:28,103 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:42:28,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:28,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:28,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:42:28,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:28,104 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:28,105 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 12:42:28,109 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 12:42:28,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:42:28,115 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 12:42:28,120 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 12:42:28,123 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 12:42:28,162 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:28,162 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,165 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 12:42:28,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:28,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:28,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:28,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:28,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:28,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:28,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:28,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,203 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 12:42:28,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:28,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:28,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:28,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:28,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:28,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:28,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:28,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,238 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 12:42:28,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:28,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:28,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:28,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:28,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:42:28,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:42:28,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,279 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 12:42:28,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:28,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:28,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:28,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:28,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:28,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:28,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:28,285 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:42:28,288 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:42:28,288 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,290 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:42:28,290 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:42:28,290 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:42:28,291 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:42:28,320 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:42:28,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:28,339 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:42:28,340 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:28,344 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:28,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:28,352 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 12:42:28,362 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:42:28,362 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:42:28,363 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49 Second operand 3 states. [2020-07-01 12:42:28,404 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49. Second operand 3 states. Result 94 states and 177 transitions. Complement of second has 4 states. [2020-07-01 12:42:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:42:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:42:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 12:42:28,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 12:42:28,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-01 12:42:28,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:42:28,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 177 transitions. [2020-07-01 12:42:28,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 12:42:28,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 77 states and 148 transitions. [2020-07-01 12:42:28,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 12:42:28,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-07-01 12:42:28,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 148 transitions. [2020-07-01 12:42:28,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:42:28,413 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 148 transitions. [2020-07-01 12:42:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 148 transitions. [2020-07-01 12:42:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 55. [2020-07-01 12:42:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-01 12:42:28,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 110 transitions. [2020-07-01 12:42:28,419 INFO L711 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-07-01 12:42:28,419 INFO L591 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-07-01 12:42:28,419 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:42:28,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 110 transitions. [2020-07-01 12:42:28,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 12:42:28,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:42:28,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:42:28,421 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 12:42:28,421 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:42:28,422 INFO L794 eck$LassoCheckResult]: Stem: 462#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 463#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 494#L21 [34] L21-->L23: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 464#L23 [37] L23-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 |v_ULTIMATE.start_main_#t~nondet6_3|) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|) (= v_ULTIMATE.start_main_~z~0_7 (+ v_ULTIMATE.start_main_~z~0_8 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 465#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 469#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 472#L23-2 [2020-07-01 12:42:28,422 INFO L796 eck$LassoCheckResult]: Loop: 472#L23-2 [32] L23-2-->L21: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_9) (< 0 v_ULTIMATE.start_main_~x~0_8) (< 0 v_ULTIMATE.start_main_~z~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 474#L21 [46] L21-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 472#L23-2 [2020-07-01 12:42:28,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:28,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1920126127, now seen corresponding path program 1 times [2020-07-01 12:42:28,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:28,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15516555] [2020-07-01 12:42:28,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,434 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:28,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1999, now seen corresponding path program 3 times [2020-07-01 12:42:28,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:28,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613062009] [2020-07-01 12:42:28,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:28,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:28,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1594728195, now seen corresponding path program 2 times [2020-07-01 12:42:28,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:42:28,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084319915] [2020-07-01 12:42:28,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:42:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:42:28,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:42:28,473 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:28,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:28,473 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:28,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:28,473 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:42:28,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:28,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:28,474 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:28,474 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 12:42:28,474 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:28,474 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:28,475 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 12:42:28,481 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 12:42:28,484 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 12:42:28,487 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 12:42:28,489 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 12:42:28,491 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 12:42:28,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:28,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:28,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:42:28,533 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:42:28,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:42:28,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:42:28,602 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:42:28,604 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:42:28,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:42:28,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:42:28,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:42:28,604 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:42:28,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,604 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:42:28,604 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:42:28,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 12:42:28,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:42:28,605 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:42:28,606 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 12:42:28,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:42:28,614 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 12:42:28,617 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 12:42:28,619 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 12:42:28,622 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 12:42:28,667 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:42:28,667 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,670 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 12:42:28,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:42:28,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:42:28,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:42:28,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:42:28,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:42:28,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:42:28,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:42:28,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:42:28,680 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:42:28,680 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-01 12:42:28,683 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:42:28,683 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:42:28,683 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:42:28,683 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 12:42:28,712 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:42:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:42:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:28,730 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:42:28,731 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:42:28,735 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:42:28,735 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:42:28,743 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 12:42:28,753 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:42:28,753 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:42:28,753 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61 Second operand 3 states. [2020-07-01 12:42:28,793 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61. Second operand 3 states. Result 138 states and 263 transitions. Complement of second has 4 states. [2020-07-01 12:42:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:42:28,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:42:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 12:42:28,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 12:42:28,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-01 12:42:28,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:42:28,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:42:28,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 263 transitions. [2020-07-01 12:42:28,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:42:28,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2020-07-01 12:42:28,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:42:28,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:42:28,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:42:28,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:42:28,800 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:42:28,800 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:42:28,800 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:42:28,800 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 12:42:28,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:42:28,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:42:28,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:42:28,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:42:28 BasicIcfg [2020-07-01 12:42:28,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:42:28,809 INFO L168 Benchmark]: Toolchain (without parser) took 4778.51 ms. Allocated memory was 514.9 MB in the beginning and 638.6 MB in the end (delta: 123.7 MB). Free memory was 436.3 MB in the beginning and 481.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 78.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,810 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 456.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:42:28,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.45 ms. Allocated memory was 514.9 MB in the beginning and 557.3 MB in the end (delta: 42.5 MB). Free memory was 435.6 MB in the beginning and 536.1 MB in the end (delta: -100.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 557.3 MB. Free memory was 536.1 MB in the beginning and 533.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,811 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 ms. Allocated memory is still 557.3 MB. Free memory was 533.9 MB in the beginning and 532.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,812 INFO L168 Benchmark]: RCFGBuilder took 224.88 ms. Allocated memory is still 557.3 MB. Free memory was 532.8 MB in the beginning and 518.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,812 INFO L168 Benchmark]: BlockEncodingV2 took 78.97 ms. Allocated memory is still 557.3 MB. Free memory was 518.9 MB in the beginning and 513.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,813 INFO L168 Benchmark]: TraceAbstraction took 154.60 ms. Allocated memory is still 557.3 MB. Free memory was 513.1 MB in the beginning and 504.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,813 INFO L168 Benchmark]: BuchiAutomizer took 3971.97 ms. Allocated memory was 557.3 MB in the beginning and 638.6 MB in the end (delta: 81.3 MB). Free memory was 504.3 MB in the beginning and 481.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 104.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:42:28,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 456.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 288.45 ms. Allocated memory was 514.9 MB in the beginning and 557.3 MB in the end (delta: 42.5 MB). Free memory was 435.6 MB in the beginning and 536.1 MB in the end (delta: -100.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 557.3 MB. Free memory was 536.1 MB in the beginning and 533.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.53 ms. Allocated memory is still 557.3 MB. Free memory was 533.9 MB in the beginning and 532.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 224.88 ms. Allocated memory is still 557.3 MB. Free memory was 532.8 MB in the beginning and 518.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.97 ms. Allocated memory is still 557.3 MB. Free memory was 518.9 MB in the beginning and 513.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.60 ms. Allocated memory is still 557.3 MB. Free memory was 513.1 MB in the beginning and 504.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3971.97 ms. Allocated memory was 557.3 MB in the beginning and 638.6 MB in the end (delta: 81.3 MB). Free memory was 504.3 MB in the beginning and 481.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 104.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 55 states and ocurred in iteration 4. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 81 SDslu, 24 SDs, 0 SdLazy, 116 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:42:20.764 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_s1KFbi/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:42:29.449 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check