/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 12:25:21,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:25:21,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:25:22,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:25:22,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:25:22,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:25:22,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:25:22,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:25:22,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:25:22,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:25:22,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:25:22,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:25:22,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:25:22,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:25:22,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:25:22,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:25:22,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:25:22,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:25:22,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:25:22,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:25:22,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:25:22,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:25:22,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:25:22,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:25:22,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:25:22,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:25:22,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:25:22,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:25:22,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:25:22,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:25:22,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:25:22,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:25:22,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:25:22,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:25:22,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:25:22,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:25:22,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:25:22,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:25:22,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:25:22,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:25:22,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:25:22,036 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:25:22,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:25:22,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:25:22,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:25:22,051 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:25:22,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:25:22,051 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:25:22,052 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:25:22,052 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:25:22,052 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:25:22,052 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:25:22,052 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:25:22,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:25:22,053 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:25:22,053 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:25:22,053 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:22,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:25:22,053 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:25:22,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:25:22,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:25:22,054 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:25:22,054 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:25:22,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:25:22,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:25:22,055 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:25:22,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:25:22,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:25:22,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:25:22,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:25:22,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:25:22,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:25:22,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:25:22,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:25:22,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:25:22,243 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:25:22,244 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:25:22,335 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_MTnR6m/tmp/0ac107a3a8cb4dc6be816bd216647495/FLAGa1fcd2859 [2020-07-01 12:25:22,670 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:25:22,671 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:25:22,678 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_MTnR6m/tmp/0ac107a3a8cb4dc6be816bd216647495/FLAGa1fcd2859 [2020-07-01 12:25:23,078 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_MTnR6m/tmp/0ac107a3a8cb4dc6be816bd216647495 [2020-07-01 12:25:23,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:25:23,091 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:25:23,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:25:23,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:25:23,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:25:23,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444b4f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:25:23,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:25:23,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:25:23,349 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:25:23,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:25:23,380 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:25:23,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23 WrapperNode [2020-07-01 12:25:23,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:25:23,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:25:23,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:25:23,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:25:23,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:25:23,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:25:23,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:25:23,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:25:23,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:25:23,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:25:23,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:25:23,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:25:23,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (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 12:25:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure p [2020-07-01 12:25:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2020-07-01 12:25:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:25:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:25:23,675 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:25:23,675 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 12:25:23,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:25:23 BoogieIcfgContainer [2020-07-01 12:25:23,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:25:23,680 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:25:23,680 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:25:23,682 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:25:23,683 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:25:23" (1/1) ... [2020-07-01 12:25:23,698 INFO L313 BlockEncoder]: Initial Icfg 17 locations, 21 edges [2020-07-01 12:25:23,700 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:25:23,701 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:25:23,701 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:25:23,702 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:25:23,703 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:25:23,704 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:25:23,704 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:25:23,718 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:25:23,733 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:25:23,737 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:25:23,739 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:25:23,750 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:25:23,752 INFO L70 RemoveSinkStates]: Removed 6 edges and 3 locations by removing sink states [2020-07-01 12:25:23,754 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:25:23,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:25:23,761 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:25:23,761 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:25:23,762 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:25:23,762 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:25:23,762 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:25:23,763 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:25:23,763 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 14 edges [2020-07-01 12:25:23,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:25:23 BasicIcfg [2020-07-01 12:25:23,764 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:25:23,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:25:23,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:25:23,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:25:23,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:25:23" (1/4) ... [2020-07-01 12:25:23,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5bd49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (2/4) ... [2020-07-01 12:25:23,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5bd49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:25:23" (3/4) ... [2020-07-01 12:25:23,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5bd49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:25:23" (4/4) ... [2020-07-01 12:25:23,773 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:25:23,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:25:23,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:25:23,808 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:25:23,831 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:25:23,832 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:25:23,832 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:25:23,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:25:23,832 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:25:23,832 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:25:23,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:25:23,832 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:25:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-01 12:25:23,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:25:23,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-07-01 12:25:23,925 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-01 12:25:23,926 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-07-01 12:25:23,926 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-07-01 12:25:23,926 INFO L271 CegarLoopResult]: At program point pENTRY(lines 12 22) the Hoare annotation is: true [2020-07-01 12:25:23,926 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-01 12:25:23,926 INFO L268 CegarLoopResult]: For program point L13(lines 13 21) no Hoare annotation was computed. [2020-07-01 12:25:23,927 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-07-01 12:25:23,927 INFO L268 CegarLoopResult]: For program point pFINAL(lines 12 22) no Hoare annotation was computed. [2020-07-01 12:25:23,927 INFO L268 CegarLoopResult]: For program point pEXIT(lines 12 22) no Hoare annotation was computed. [2020-07-01 12:25:23,927 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:25:23,927 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-07-01 12:25:23,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:25:23 BasicIcfg [2020-07-01 12:25:23,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:25:23,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:25:23,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:25:23,935 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:25:23,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:25:23,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:25:23" (1/5) ... [2020-07-01 12:25:23,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766d97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:25:23,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:25:23" (2/5) ... [2020-07-01 12:25:23,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766d97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:25:23,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:25:23" (3/5) ... [2020-07-01 12:25:23,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766d97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:25:23,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:25:23" (4/5) ... [2020-07-01 12:25:23,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766d97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:25:23, skipping insertion in model container [2020-07-01 12:25:23,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:25:23,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:25:23" (5/5) ... [2020-07-01 12:25:23,941 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:25:23,969 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:25:23,969 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:25:23,969 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:25:23,969 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:25:23,969 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:25:23,969 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:25:23,970 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:25:23,970 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:25:23,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 12:25:23,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:25:23,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:23,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:24,001 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:25:24,001 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:25:24,001 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:25:24,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 12:25:24,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:25:24,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:24,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:24,003 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:25:24,003 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:25:24,009 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [63] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_ULTIMATE.start_main_~r~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_8) (<= 0 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_#t~ret5] 9#L29true [44] L29-->pENTRY: Formula: (and (= |v_p_#in~rInParam_3| v_ULTIMATE.start_main_~r~0_7) (= |v_p_#in~mInParam_3| v_ULTIMATE.start_main_~m~0_7) (= |v_p_#in~nInParam_3| v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{p_#in~m=|v_p_#in~mInParam_3|, p_#in~n=|v_p_#in~nInParam_3|, p_#in~r=|v_p_#in~rInParam_3|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 10#pENTRYtrue [2020-07-01 12:25:24,009 INFO L796 eck$LassoCheckResult]: Loop: 10#pENTRYtrue [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 11#L13true [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 8#L14true [42] L14-->pENTRY: Formula: (and (= |v_p_#in~rInParam_1| v_p_~n_6) (= |v_p_#in~mInParam_1| v_p_~m_5) (= |v_p_#in~nInParam_1| (+ v_p_~r_6 (- 1)))) InVars {p_~n=v_p_~n_6, p_~m=v_p_~m_5, p_~r=v_p_~r_6} OutVars{p_#in~m=|v_p_#in~mInParam_1|, p_#in~n=|v_p_#in~nInParam_1|, p_#in~r=|v_p_#in~rInParam_1|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 10#pENTRYtrue [2020-07-01 12:25:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:24,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2958, now seen corresponding path program 1 times [2020-07-01 12:25:24,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:24,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673320277] [2020-07-01 12:25:24,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:24,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:24,105 INFO L82 PathProgramCache]: Analyzing trace with hash 72551, now seen corresponding path program 1 times [2020-07-01 12:25:24,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:24,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220582958] [2020-07-01 12:25:24,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,118 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:24,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:24,120 INFO L82 PathProgramCache]: Analyzing trace with hash 88164538, now seen corresponding path program 1 times [2020-07-01 12:25:24,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:24,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263098111] [2020-07-01 12:25:24,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:24,143 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:24,259 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:24,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:24,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:24,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:24,260 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:25:24,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:24,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:24,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:24,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:25:24,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:24,261 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:24,278 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 12:25:24,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:25:24,293 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 12:25:24,296 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 12:25:24,301 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 12:25:24,306 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 12:25:24,309 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 12:25:24,319 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 12:25:24,411 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:24,411 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 12:25:24,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,427 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=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 12:25:24,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,464 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,464 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} 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 12:25:24,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,501 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,501 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 12:25:24,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0} Honda state: {p_#in~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:24,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:24,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:24,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:24,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~m=0} Honda state: {p_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:24,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:24,643 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:24,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:25:24,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:25,070 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:25:25,073 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:25,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:25,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:25,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:25,074 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:25:25,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:25,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:25,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:25:25,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:25,075 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:25,077 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 12:25:25,080 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 12:25:25,083 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 12:25:25,089 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 12:25:25,092 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 12:25:25,098 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 12:25:25,101 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 12:25:25,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:25:25,206 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:25,212 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:25:25,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,226 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,259 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 12:25:25,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,299 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 12:25:25,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,304 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,338 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 12:25:25,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,344 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,379 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 12:25:25,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,418 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 12:25:25,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,425 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 12:25:25,457 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 12:25:25,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,466 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 12:25:25,498 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 12:25:25,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:25,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:25,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:25:25,534 INFO L489 LassoAnalysis]: Using template '2-nested'. 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 12:25:25,537 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 12:25:25,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,540 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,541 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,544 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 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 12:25:25,576 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 12:25:25,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,579 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,580 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,583 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,616 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 12:25:25,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,619 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,620 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,623 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,656 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 12:25:25,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,659 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,660 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,663 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,696 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 12:25:25,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,699 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,701 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,704 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 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,735 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 12:25:25,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,738 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,739 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,742 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 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,774 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 12:25:25,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:25,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:25,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:25,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:25,777 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:25,784 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:25,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:25,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:25:25,805 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 12:25:25,805 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:25,817 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:25:25,817 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:25:25,817 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:25:25,818 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_#in~n + 1*p_#in~r f1 = 1*p_#in~r Supporting invariants [] [2020-07-01 12:25:25,852 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:25:25,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:25,921 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:25:25,923 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:25,946 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-01 12:25:25,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:25,960 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:25,961 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:25,966 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:25,968 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:26,037 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 12:25:26,322 INFO L98 LoopCannibalizer]: 12 predicates before loop cannibalization 12 predicates after loop cannibalization [2020-07-01 12:25:26,327 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 12 loop predicates [2020-07-01 12:25:26,329 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. [2020-07-01 12:25:26,480 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2020-07-01 12:25:26,827 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 118 states and 158 transitions. Complement of second has 31 states. [2020-07-01 12:25:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 12:25:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:25:26,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2020-07-01 12:25:26,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 43 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 12:25:26,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:26,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 43 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 12:25:26,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:26,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 43 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 12:25:26,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:26,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 158 transitions. [2020-07-01 12:25:26,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-01 12:25:26,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 29 states and 34 transitions. [2020-07-01 12:25:26,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-07-01 12:25:26,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 12:25:26,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2020-07-01 12:25:26,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:25:26,863 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2020-07-01 12:25:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2020-07-01 12:25:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 12. [2020-07-01 12:25:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:25:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-07-01 12:25:26,892 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-01 12:25:26,892 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-01 12:25:26,893 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:25:26,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-07-01 12:25:26,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 12:25:26,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:26,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:26,894 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 12:25:26,894 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:25:26,895 INFO L794 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_ULTIMATE.start_main_~r~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_8) (<= 0 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_#t~ret5] 217#L29 [44] L29-->pENTRY: Formula: (and (= |v_p_#in~rInParam_3| v_ULTIMATE.start_main_~r~0_7) (= |v_p_#in~mInParam_3| v_ULTIMATE.start_main_~m~0_7) (= |v_p_#in~nInParam_3| v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{p_#in~m=|v_p_#in~mInParam_3|, p_#in~n=|v_p_#in~nInParam_3|, p_#in~r=|v_p_#in~rInParam_3|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 227#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 226#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 221#L16 [2020-07-01 12:25:26,895 INFO L796 eck$LassoCheckResult]: Loop: 221#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 216#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 218#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 224#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 221#L16 [2020-07-01 12:25:26,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:26,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2844027, now seen corresponding path program 1 times [2020-07-01 12:25:26,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:26,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327975240] [2020-07-01 12:25:26,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,908 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2030060, now seen corresponding path program 1 times [2020-07-01 12:25:26,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:26,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408237651] [2020-07-01 12:25:26,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,917 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:26,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2000219546, now seen corresponding path program 1 times [2020-07-01 12:25:26,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:26,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159902827] [2020-07-01 12:25:26,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:26,935 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:26,999 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:27,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:27,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:27,000 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:27,000 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:25:27,000 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,000 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:27,000 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:27,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:25:27,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:27,001 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:27,002 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 12:25:27,005 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 12:25:27,007 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 12:25:27,009 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 12:25:27,016 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 12:25:27,090 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:27,090 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:27,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:27,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:27,097 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:27,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:27,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:27,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:27,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:27,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:27,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:27,198 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:27,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:25:27,235 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:28,120 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:25:28,123 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:28,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:28,123 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:28,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:28,123 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:25:28,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:28,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:28,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:28,124 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:25:28,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:28,124 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:28,126 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 12:25:28,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:25:28,130 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 12:25:28,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:25:28,139 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 12:25:28,209 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:28,209 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:28,212 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 12:25:28,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:28,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:28,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:28,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:28,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:28,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:28,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:28,217 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 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:28,248 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 12:25:28,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:28,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:28,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:28,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:28,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:28,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:28,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:28,253 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:28,284 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 12:25:28,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:28,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:28,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:28,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:28,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:28,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:28,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:28,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:25:28,296 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:25:28,296 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:28,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:25:28,299 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:25:28,299 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:25:28,299 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2020-07-01 12:25:28,328 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:25:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:28,350 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:25:28,351 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:28,365 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 12:25:28,366 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:28,397 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 12:25:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,440 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:28,449 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 12:25:28,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:28,457 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 12:25:28,458 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-01 12:25:28,458 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-07-01 12:25:28,492 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 44 states and 57 transitions. Complement of second has 36 states. [2020-07-01 12:25:28,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 12:25:28,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:25:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-01 12:25:28,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 12:25:28,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:28,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 12:25:28,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:28,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 12:25:28,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:28,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2020-07-01 12:25:28,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-07-01 12:25:28,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 22 states and 27 transitions. [2020-07-01 12:25:28,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 12:25:28,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 12:25:28,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2020-07-01 12:25:28,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:25:28,502 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-07-01 12:25:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2020-07-01 12:25:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2020-07-01 12:25:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-01 12:25:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-07-01 12:25:28,504 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-07-01 12:25:28,504 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-07-01 12:25:28,504 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:25:28,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-07-01 12:25:28,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 12:25:28,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:28,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:28,506 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 12:25:28,506 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2020-07-01 12:25:28,506 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_ULTIMATE.start_main_~r~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_8) (<= 0 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_#t~ret5] 366#L29 [44] L29-->pENTRY: Formula: (and (= |v_p_#in~rInParam_3| v_ULTIMATE.start_main_~r~0_7) (= |v_p_#in~mInParam_3| v_ULTIMATE.start_main_~m~0_7) (= |v_p_#in~nInParam_3| v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{p_#in~m=|v_p_#in~mInParam_3|, p_#in~n=|v_p_#in~nInParam_3|, p_#in~r=|v_p_#in~rInParam_3|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 377#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 378#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 370#L16 [2020-07-01 12:25:28,506 INFO L796 eck$LassoCheckResult]: Loop: 370#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 365#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 369#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 376#L13 [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 367#L14 [42] L14-->pENTRY: Formula: (and (= |v_p_#in~rInParam_1| v_p_~n_6) (= |v_p_#in~mInParam_1| v_p_~m_5) (= |v_p_#in~nInParam_1| (+ v_p_~r_6 (- 1)))) InVars {p_~n=v_p_~n_6, p_~m=v_p_~m_5, p_~r=v_p_~r_6} OutVars{p_#in~m=|v_p_#in~mInParam_1|, p_#in~n=|v_p_#in~nInParam_1|, p_#in~r=|v_p_#in~rInParam_1|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 373#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 375#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 370#L16 [2020-07-01 12:25:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:28,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2844027, now seen corresponding path program 2 times [2020-07-01 12:25:28,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:28,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470759406] [2020-07-01 12:25:28,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,519 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:28,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:28,519 INFO L82 PathProgramCache]: Analyzing trace with hash 347689366, now seen corresponding path program 1 times [2020-07-01 12:25:28,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:28,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360174999] [2020-07-01 12:25:28,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:28,533 INFO L82 PathProgramCache]: Analyzing trace with hash -164516132, now seen corresponding path program 1 times [2020-07-01 12:25:28,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:28,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927450905] [2020-07-01 12:25:28,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:28,555 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:28,713 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:28,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:28,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:28,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:28,714 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:25:28,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:28,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:28,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:28,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:25:28,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:28,714 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:28,716 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 12:25:28,718 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 12:25:28,734 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 12:25:28,736 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 12:25:28,837 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:28,837 INFO L404 LassoAnalysis]: Checking for nontermination... 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 12:25:28,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:28,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:28,847 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:28,848 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:28,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:28,880 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:28,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:25:28,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:33,084 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:25:33,088 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:33,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:33,089 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:33,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:33,089 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:25:33,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:33,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:33,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:33,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 12:25:33,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:33,090 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:33,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:25:33,112 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 12:25:33,115 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 12:25:33,117 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 12:25:33,206 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:33,206 INFO L489 LassoAnalysis]: Using template 'affine'. 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 12:25:33,209 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 12:25:33,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:33,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:33,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:33,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:33,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:33,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:33,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:33,218 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 12:25:33,250 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 12:25:33,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:33,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:33,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:33,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:33,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:33,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:33,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:33,255 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 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 12:25:33,286 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 12:25:33,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:33,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:33,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:33,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:33,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:33,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:33,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:33,291 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 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:33,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:25:33,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:33,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:33,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:33,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:33,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:33,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:33,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:33,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:25:33,356 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:33,359 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 12:25:33,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:33,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:33,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:33,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:33,363 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:33,366 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:33,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:33,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:25:33,380 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:25:33,381 INFO L444 ModelExtractionUtils]: 10 out of 15 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 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 12:25:33,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:25:33,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:25:33,385 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:25:33,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~m + 1*p_~r f1 = 1*p_~m Supporting invariants [] [2020-07-01 12:25:33,415 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:25:33,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:33,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:25:33,444 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:33,476 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-01 12:25:33,477 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:33,491 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,494 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,497 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:33,498 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:33,500 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:33,501 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,504 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,506 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,537 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,539 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,567 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,592 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,594 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,595 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,598 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,599 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,625 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:25:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:34,265 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:34,279 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:34,294 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-01 12:25:34,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:34,300 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,302 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,304 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:34,305 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:34,307 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 12:25:34,308 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,310 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,311 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,352 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,354 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,448 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,507 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,511 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,512 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,515 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,516 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:34,564 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:35,784 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:35,798 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:35,798 INFO L98 LoopCannibalizer]: 25 predicates before loop cannibalization 54 predicates after loop cannibalization [2020-07-01 12:25:35,799 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 54 loop predicates [2020-07-01 12:25:35,799 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 7 states. [2020-07-01 12:25:36,319 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 28 [2020-07-01 12:25:36,741 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2020-07-01 12:25:37,283 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 28 [2020-07-01 12:25:38,125 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 28 [2020-07-01 12:25:38,916 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 28 [2020-07-01 12:25:39,176 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-07-01 12:25:39,633 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-07-01 12:25:40,046 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 25 [2020-07-01 12:25:40,368 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-07-01 12:25:40,893 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2020-07-01 12:25:41,155 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 29 [2020-07-01 12:25:41,449 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2020-07-01 12:25:41,710 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 30 [2020-07-01 12:25:42,846 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 33 [2020-07-01 12:25:43,067 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 30 [2020-07-01 12:25:43,408 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 33 [2020-07-01 12:25:43,695 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 36 [2020-07-01 12:25:44,114 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2020-07-01 12:25:44,422 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 24 [2020-07-01 12:25:44,677 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-07-01 12:25:45,361 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 7 states. Result 5242 states and 7057 transitions. Complement of second has 4392 states. [2020-07-01 12:25:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 43 states 1 stem states 39 non-accepting loop states 3 accepting loop states [2020-07-01 12:25:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:25:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 75 transitions. [2020-07-01 12:25:45,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 43 states and 75 transitions. Stem has 4 letters. Loop has 7 letters. [2020-07-01 12:25:45,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:45,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 43 states and 75 transitions. Stem has 11 letters. Loop has 7 letters. [2020-07-01 12:25:45,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:45,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 43 states and 75 transitions. Stem has 4 letters. Loop has 14 letters. [2020-07-01 12:25:45,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:45,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5242 states and 7057 transitions. [2020-07-01 12:25:45,444 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2020-07-01 12:25:45,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5242 states to 643 states and 792 transitions. [2020-07-01 12:25:45,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2020-07-01 12:25:45,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2020-07-01 12:25:45,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 643 states and 792 transitions. [2020-07-01 12:25:45,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:25:45,457 INFO L688 BuchiCegarLoop]: Abstraction has 643 states and 792 transitions. [2020-07-01 12:25:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states and 792 transitions. [2020-07-01 12:25:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 89. [2020-07-01 12:25:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-07-01 12:25:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2020-07-01 12:25:45,473 INFO L711 BuchiCegarLoop]: Abstraction has 89 states and 116 transitions. [2020-07-01 12:25:45,473 INFO L591 BuchiCegarLoop]: Abstraction has 89 states and 116 transitions. [2020-07-01 12:25:45,473 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:25:45,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 116 transitions. [2020-07-01 12:25:45,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2020-07-01 12:25:45,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:45,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:45,475 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-07-01 12:25:45,475 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:25:45,476 INFO L794 eck$LassoCheckResult]: Stem: 10252#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_ULTIMATE.start_main_~r~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_8) (<= 0 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_#t~ret5] 10248#L29 [44] L29-->pENTRY: Formula: (and (= |v_p_#in~rInParam_3| v_ULTIMATE.start_main_~r~0_7) (= |v_p_#in~mInParam_3| v_ULTIMATE.start_main_~m~0_7) (= |v_p_#in~nInParam_3| v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{p_#in~m=|v_p_#in~mInParam_3|, p_#in~n=|v_p_#in~nInParam_3|, p_#in~r=|v_p_#in~rInParam_3|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 10263#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 10265#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 10247#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 10250#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 10286#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 10287#L13 [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 10258#L14 [2020-07-01 12:25:45,476 INFO L796 eck$LassoCheckResult]: Loop: 10258#L14 [42] L14-->pENTRY: Formula: (and (= |v_p_#in~rInParam_1| v_p_~n_6) (= |v_p_#in~mInParam_1| v_p_~m_5) (= |v_p_#in~nInParam_1| (+ v_p_~r_6 (- 1)))) InVars {p_~n=v_p_~n_6, p_~m=v_p_~m_5, p_~r=v_p_~r_6} OutVars{p_#in~m=|v_p_#in~mInParam_1|, p_#in~n=|v_p_#in~nInParam_1|, p_#in~r=|v_p_#in~rInParam_1|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 10237#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 10259#L13 [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 10258#L14 [2020-07-01 12:25:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2000219557, now seen corresponding path program 1 times [2020-07-01 12:25:45,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:45,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940601981] [2020-07-01 12:25:45,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:45,495 INFO L82 PathProgramCache]: Analyzing trace with hash 71531, now seen corresponding path program 2 times [2020-07-01 12:25:45,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:45,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636477722] [2020-07-01 12:25:45,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:45,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:45,502 INFO L82 PathProgramCache]: Analyzing trace with hash -164516143, now seen corresponding path program 2 times [2020-07-01 12:25:45,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:45,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513710198] [2020-07-01 12:25:45,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:45,551 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:25:45,609 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:45,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:45,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:45,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:45,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:25:45,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:45,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:45,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:45,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:25:45,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:45,610 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:45,611 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 12:25:45,614 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 12:25:45,619 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 12:25:45,628 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 12:25:45,630 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 12:25:45,685 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:45,685 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:45,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:45,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:45,692 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:45,692 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:45,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:45,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:45,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:25:45,729 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=-8, p_~m=-8} Honda state: {p_#in~m=-8, p_~m=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:45,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:25:45,761 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:25:45,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:25:45,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:25:57,856 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 12:25:57,860 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:25:57,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:25:57,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:25:57,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:25:57,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:25:57,861 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:57,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:25:57,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:25:57,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 12:25:57,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:25:57,861 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:25:57,862 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 12:25:57,865 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 12:25:57,870 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 12:25:57,880 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 12:25:57,883 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 12:25:57,938 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:25:57,939 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:57,941 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 12:25:57,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:57,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:57,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:57,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:57,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:57,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:57,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:57,946 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:57,977 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 12:25:57,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:57,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:57,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:57,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:57,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:57,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:57,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:57,982 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,013 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 12:25:58,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:58,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:58,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,020 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 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,052 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 12:25:58,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:58,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:58,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,057 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,088 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 12:25:58,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:25:58,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:25:58,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:25:58,121 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,124 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 12:25:58,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,126 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:58,126 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:58,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,128 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 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,159 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 12:25:58,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,162 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:58,163 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:58,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,166 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,197 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 12:25:58,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:25:58,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:25:58,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:25:58,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:25:58,200 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:25:58,202 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:25:58,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:25:58,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:25:58,212 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:25:58,213 INFO L444 ModelExtractionUtils]: 6 out of 11 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 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:25:58,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:25:58,216 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:25:58,216 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:25:58,216 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~r + 1*p_~n f1 = 1*p_~n Supporting invariants [] [2020-07-01 12:25:58,247 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:25:58,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:58,278 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:25:58,279 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:58,290 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-01 12:25:58,291 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:58,294 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,296 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,298 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:25:58,298 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 12:25:58,300 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 12:25:58,300 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,302 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,303 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,326 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,327 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:25:58,349 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 12:25:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:25:58,693 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 12:25:58,693 INFO L98 LoopCannibalizer]: 18 predicates before loop cannibalization 18 predicates after loop cannibalization [2020-07-01 12:25:58,694 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 18 loop predicates [2020-07-01 12:25:58,694 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 89 states and 116 transitions. cyclomatic complexity: 33 Second operand 4 states. [2020-07-01 12:25:58,852 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-07-01 12:25:58,993 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 89 states and 116 transitions. cyclomatic complexity: 33. Second operand 4 states. Result 1858 states and 2659 transitions. Complement of second has 93 states. [2020-07-01 12:25:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 12:25:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:25:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-01 12:25:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-01 12:25:58,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 11 letters. Loop has 3 letters. [2020-07-01 12:25:58,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:58,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 8 letters. Loop has 6 letters. [2020-07-01 12:25:58,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:25:58,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1858 states and 2659 transitions. [2020-07-01 12:25:59,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2020-07-01 12:25:59,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1858 states to 298 states and 378 transitions. [2020-07-01 12:25:59,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 12:25:59,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-07-01 12:25:59,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 378 transitions. [2020-07-01 12:25:59,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:25:59,019 INFO L688 BuchiCegarLoop]: Abstraction has 298 states and 378 transitions. [2020-07-01 12:25:59,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 378 transitions. [2020-07-01 12:25:59,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 81. [2020-07-01 12:25:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-01 12:25:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2020-07-01 12:25:59,026 INFO L711 BuchiCegarLoop]: Abstraction has 81 states and 106 transitions. [2020-07-01 12:25:59,027 INFO L591 BuchiCegarLoop]: Abstraction has 81 states and 106 transitions. [2020-07-01 12:25:59,027 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 12:25:59,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 106 transitions. [2020-07-01 12:25:59,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-07-01 12:25:59,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:25:59,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:25:59,028 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1] [2020-07-01 12:25:59,028 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1] [2020-07-01 12:25:59,029 INFO L794 eck$LassoCheckResult]: Stem: 12363#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_ULTIMATE.start_main_~r~0_8) (<= 0 v_ULTIMATE.start_main_~m~0_8) (<= 0 v_ULTIMATE.start_main_~n~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_8, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_#t~ret5] 12356#L29 [44] L29-->pENTRY: Formula: (and (= |v_p_#in~rInParam_3| v_ULTIMATE.start_main_~r~0_7) (= |v_p_#in~mInParam_3| v_ULTIMATE.start_main_~m~0_7) (= |v_p_#in~nInParam_3| v_ULTIMATE.start_main_~n~0_7)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{p_#in~m=|v_p_#in~mInParam_3|, p_#in~n=|v_p_#in~nInParam_3|, p_#in~r=|v_p_#in~rInParam_3|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12368#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12372#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 12352#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 12355#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12402#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12399#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 12384#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 12360#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12371#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12370#L13 [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 12359#L14 [2020-07-01 12:25:59,029 INFO L796 eck$LassoCheckResult]: Loop: 12359#L14 [42] L14-->pENTRY: Formula: (and (= |v_p_#in~rInParam_1| v_p_~n_6) (= |v_p_#in~mInParam_1| v_p_~m_5) (= |v_p_#in~nInParam_1| (+ v_p_~r_6 (- 1)))) InVars {p_~n=v_p_~n_6, p_~m=v_p_~m_5, p_~r=v_p_~r_6} OutVars{p_#in~m=|v_p_#in~mInParam_1|, p_#in~n=|v_p_#in~nInParam_1|, p_#in~r=|v_p_#in~rInParam_1|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12365#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12414#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 12357#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 12355#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12402#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12399#L13 [56] L13-->L16: Formula: (>= 0 v_p_~r_4) InVars {p_~r=v_p_~r_4} OutVars{p_~r=v_p_~r_4} AuxVars[] AssignedVars[] 12384#L16 [36] L16-->L17: Formula: (< 0 v_p_~n_3) InVars {p_~n=v_p_~n_3} OutVars{p_~n=v_p_~n_3} AuxVars[] AssignedVars[] 12360#L17 [34] L17-->pENTRY: Formula: (and (= |v_p_#in~nInParam_2| (+ v_p_~n_7 (- 1))) (= |v_p_#in~rInParam_2| v_p_~m_6) (= |v_p_#in~mInParam_2| v_p_~r_7)) InVars {p_~n=v_p_~n_7, p_~m=v_p_~m_6, p_~r=v_p_~r_7} OutVars{p_#in~m=|v_p_#in~mInParam_2|, p_#in~n=|v_p_#in~nInParam_2|, p_#in~r=|v_p_#in~rInParam_2|} AuxVars[] AssignedVars[p_#in~m, p_#in~n, p_#in~r]< 12371#pENTRY [43] pENTRY-->L13: Formula: (and (= v_p_~n_1 |v_p_#in~n_1|) (= v_p_~r_1 |v_p_#in~r_1|) (= v_p_~m_1 |v_p_#in~m_1|)) InVars {p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_#in~r=|v_p_#in~r_1|} OutVars{p_~n=v_p_~n_1, p_#in~m=|v_p_#in~m_1|, p_#in~n=|v_p_#in~n_1|, p_~m=v_p_~m_1, p_~r=v_p_~r_1, p_#in~r=|v_p_#in~r_1|} AuxVars[] AssignedVars[p_~n, p_~m, p_~r] 12370#L13 [45] L13-->L14: Formula: (< 0 v_p_~r_2) InVars {p_~r=v_p_~r_2} OutVars{p_~r=v_p_~r_2} AuxVars[] AssignedVars[] 12359#L14 [2020-07-01 12:25:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:59,029 INFO L82 PathProgramCache]: Analyzing trace with hash -795061818, now seen corresponding path program 2 times [2020-07-01 12:25:59,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:59,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146581263] [2020-07-01 12:25:59,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:25:59,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146581263] [2020-07-01 12:25:59,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431687587] [2020-07-01 12:25:59,099 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:25:59,126 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-01 12:25:59,127 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-01 12:25:59,127 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:25:59,128 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:25:59,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:25:59,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-01 12:25:59,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130092772] [2020-07-01 12:25:59,137 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:25:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:25:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash -615917375, now seen corresponding path program 2 times [2020-07-01 12:25:59,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:25:59,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602044792] [2020-07-01 12:25:59,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:25:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:25:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:25:59,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602044792] [2020-07-01 12:25:59,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334025635] [2020-07-01 12:25:59,184 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:25:59,209 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-01 12:25:59,209 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-01 12:25:59,210 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:25:59,211 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:25:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:25:59,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:25:59,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-01 12:25:59,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949606739] [2020-07-01 12:25:59,215 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:25:59,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:25:59,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 12:25:59,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 12:25:59,220 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. cyclomatic complexity: 29 Second operand 6 states. [2020-07-01 12:25:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:25:59,297 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-07-01 12:25:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-01 12:25:59,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 63 transitions. [2020-07-01 12:25:59,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:25:59,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2020-07-01 12:25:59,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:25:59,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:25:59,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:25:59,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:25:59,301 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:25:59,301 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:25:59,301 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:25:59,301 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 12:25:59,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:25:59,301 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:25:59,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:25:59,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:25:59 BasicIcfg [2020-07-01 12:25:59,308 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:25:59,310 INFO L168 Benchmark]: Toolchain (without parser) took 36218.81 ms. Allocated memory was 649.6 MB in the beginning and 1.0 GB in the end (delta: 371.7 MB). Free memory was 561.6 MB in the beginning and 415.4 MB in the end (delta: 146.3 MB). Peak memory consumption was 518.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,310 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:25:59,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.06 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 561.6 MB in the beginning and 655.5 MB in the end (delta: -93.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 692.1 MB. Free memory was 655.5 MB in the beginning and 654.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,311 INFO L168 Benchmark]: Boogie Preprocessor took 18.36 ms. Allocated memory is still 692.1 MB. Free memory was 654.2 MB in the beginning and 652.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,312 INFO L168 Benchmark]: RCFGBuilder took 243.83 ms. Allocated memory is still 692.1 MB. Free memory was 652.8 MB in the beginning and 637.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,312 INFO L168 Benchmark]: BlockEncodingV2 took 83.88 ms. Allocated memory is still 692.1 MB. Free memory was 637.0 MB in the beginning and 630.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,312 INFO L168 Benchmark]: TraceAbstraction took 166.47 ms. Allocated memory is still 692.1 MB. Free memory was 630.3 MB in the beginning and 619.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,313 INFO L168 Benchmark]: BuchiAutomizer took 35375.89 ms. Allocated memory was 692.1 MB in the beginning and 1.0 GB in the end (delta: 329.3 MB). Free memory was 619.4 MB in the beginning and 415.4 MB in the end (delta: 204.0 MB). Peak memory consumption was 533.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:25:59,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 17 locations, 21 edges - StatisticsResult: Encoded RCFG 11 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.06 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 561.6 MB in the beginning and 655.5 MB in the end (delta: -93.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 692.1 MB. Free memory was 655.5 MB in the beginning and 654.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.36 ms. Allocated memory is still 692.1 MB. Free memory was 654.2 MB in the beginning and 652.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 243.83 ms. Allocated memory is still 692.1 MB. Free memory was 652.8 MB in the beginning and 637.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.88 ms. Allocated memory is still 692.1 MB. Free memory was 637.0 MB in the beginning and 630.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 166.47 ms. Allocated memory is still 692.1 MB. Free memory was 630.3 MB in the beginning and 619.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 35375.89 ms. Allocated memory was 692.1 MB in the beginning and 1.0 GB in the end (delta: 329.3 MB). Free memory was 619.4 MB in the beginning and 415.4 MB in the end (delta: 204.0 MB). Peak memory consumption was 533.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 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=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 4 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has 2-nested ranking function (if \old(n) + \old(r) > 0 then 1 else 0), (if \old(n) + \old(r) > 0 then \old(n) + \old(r) else \old(r)) and consists of 6 locations. One nondeterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has 2-nested ranking function (if m + r > 0 then 1 else 0), (if m + r > 0 then m + r else m) and consists of 43 locations. One nondeterministic module has 2-nested ranking function (if r + n > 0 then 1 else 0), (if r + n > 0 then r + n else n) and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.3s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 21.1s. Construction of modules took 0.8s. Büchi inclusion checks took 13.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 795 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 89 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 86 SDtfs, 534 SDslu, 300 SDs, 0 SdLazy, 1044 SolverSat, 276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf89 smp96 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 17.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:25:19.770 ----------------------------------------------- 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_MTnR6m/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:26:00.148 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check