/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 11:51:06,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:51:06,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:51:06,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:51:06,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:51:06,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:51:06,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:51:06,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:51:06,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:51:06,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:51:06,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:51:06,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:51:06,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:51:06,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:51:06,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:51:06,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:51:06,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:51:06,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:51:06,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:51:06,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:51:06,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:51:06,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:51:06,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:51:06,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:51:06,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:51:06,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:51:07,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:51:07,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:51:07,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:51:07,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:51:07,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:51:07,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:51:07,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:51:07,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:51:07,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:51:07,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:51:07,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:51:07,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:51:07,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:51:07,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:51:07,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:51:07,008 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:51:07,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:51:07,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:51:07,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:51:07,024 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:51:07,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:51:07,024 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:51:07,025 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:51:07,025 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:51:07,025 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:51:07,025 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:51:07,025 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:51:07,025 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:51:07,026 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:51:07,026 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:51:07,026 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:07,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:51:07,026 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:51:07,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:51:07,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:51:07,027 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:51:07,027 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:51:07,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:51:07,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:51:07,028 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:51:07,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:51:07,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:51:07,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:51:07,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:51:07,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:51:07,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:51:07,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:51:07,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:51:07,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:51:07,210 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:51:07,210 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:51:07,273 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_IOxsvV/tmp/7cd4690e17ee4f29b28d0ea77a55b224/FLAGd33856330 [2020-07-01 11:51:07,601 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:51:07,602 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:51:07,609 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_IOxsvV/tmp/7cd4690e17ee4f29b28d0ea77a55b224/FLAGd33856330 [2020-07-01 11:51:08,011 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_IOxsvV/tmp/7cd4690e17ee4f29b28d0ea77a55b224 [2020-07-01 11:51:08,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:51:08,024 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:51:08,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:51:08,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:51:08,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:51:08,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e789f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:51:08,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:51:08,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:51:08,289 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:51:08,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:51:08,322 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:51:08,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08 WrapperNode [2020-07-01 11:51:08,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:51:08,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:51:08,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:51:08,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:51:08,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:51:08,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:51:08,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:51:08,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:51:08,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:51:08,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:51:08,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:51:08,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:51:08,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:51:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2020-07-01 11:51:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2020-07-01 11:51:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:51:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:51:08,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:51:08,642 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 11:51:08,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:08 BoogieIcfgContainer [2020-07-01 11:51:08,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:51:08,646 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:51:08,646 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:51:08,648 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:51:08,649 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:08" (1/1) ... [2020-07-01 11:51:08,663 INFO L313 BlockEncoder]: Initial Icfg 21 locations, 28 edges [2020-07-01 11:51:08,665 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:51:08,666 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:51:08,666 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:51:08,666 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:51:08,668 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:51:08,669 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:51:08,669 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:51:08,684 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:51:08,702 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 11:51:08,706 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:51:08,708 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:51:08,717 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:51:08,719 INFO L70 RemoveSinkStates]: Removed 10 edges and 5 locations by removing sink states [2020-07-01 11:51:08,721 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:51:08,721 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:51:08,728 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:51:08,729 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:51:08,729 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:51:08,729 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:51:08,729 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:51:08,730 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:51:08,730 INFO L313 BlockEncoder]: Encoded RCFG 13 locations, 18 edges [2020-07-01 11:51:08,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:08 BasicIcfg [2020-07-01 11:51:08,731 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:51:08,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:51:08,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:51:08,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:51:08,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:51:08" (1/4) ... [2020-07-01 11:51:08,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76735462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (2/4) ... [2020-07-01 11:51:08,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76735462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:08" (3/4) ... [2020-07-01 11:51:08,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76735462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:08" (4/4) ... [2020-07-01 11:51:08,741 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:51:08,752 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:51:08,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:51:08,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:51:08,796 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:51:08,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:51:08,797 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:51:08,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:51:08,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:51:08,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:51:08,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:51:08,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:51:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-01 11:51:08,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:51:08,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-07-01 11:51:08,898 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-01 11:51:08,898 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-01 11:51:08,898 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-07-01 11:51:08,898 INFO L271 CegarLoopResult]: At program point multENTRY(lines 15 23) the Hoare annotation is: true [2020-07-01 11:51:08,898 INFO L268 CegarLoopResult]: For program point multFINAL(lines 15 23) no Hoare annotation was computed. [2020-07-01 11:51:08,899 INFO L268 CegarLoopResult]: For program point multEXIT(lines 15 23) no Hoare annotation was computed. [2020-07-01 11:51:08,899 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-01 11:51:08,899 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-07-01 11:51:08,899 INFO L268 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-07-01 11:51:08,899 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-07-01 11:51:08,899 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:51:08,900 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-07-01 11:51:08,900 INFO L271 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-07-01 11:51:08,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:08 BasicIcfg [2020-07-01 11:51:08,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:51:08,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:51:08,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:51:08,908 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:51:08,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:08,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:51:08" (1/5) ... [2020-07-01 11:51:08,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c23e578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:08,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:08" (2/5) ... [2020-07-01 11:51:08,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c23e578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:08,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:08" (3/5) ... [2020-07-01 11:51:08,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c23e578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:08,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:08" (4/5) ... [2020-07-01 11:51:08,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c23e578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:08, skipping insertion in model container [2020-07-01 11:51:08,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:08,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:08" (5/5) ... [2020-07-01 11:51:08,913 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:51:08,941 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:51:08,941 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:51:08,941 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:51:08,941 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:51:08,941 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:51:08,941 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:51:08,942 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:51:08,942 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:51:08,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-01 11:51:08,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:51:08,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:08,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:08,973 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:51:08,973 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:51:08,973 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:51:08,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-01 11:51:08,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:51:08,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:08,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:08,976 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:51:08,976 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:51:08,981 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue [90] ULTIMATE.startENTRY-->L34: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_13) (<= 0 v_ULTIMATE.start_main_~m~0_13)) InVars {} OutVars{ULTIMATE.start_main_~res1~0=v_ULTIMATE.start_main_~res1~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_13, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_13, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_7|, ULTIMATE.start_main_~res2~0=v_ULTIMATE.start_main_~res2~0_4, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res1~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~res2~0, ULTIMATE.start_main_#t~ret4] 11#L34true [64] L34-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_10) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_9)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 4#multENTRYtrue [2020-07-01 11:51:08,981 INFO L796 eck$LassoCheckResult]: Loop: 4#multENTRYtrue [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 5#L16true [52] L16-->L17: Formula: (< v_mult_~m_2 0) InVars {mult_~m=v_mult_~m_2} OutVars{mult_~m=v_mult_~m_2} AuxVars[] AssignedVars[] 3#L17true [48] L17-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_1| v_mult_~n_5) (= |v_mult_#in~mInParam_1| (- v_mult_~m_8))) InVars {mult_~n=v_mult_~n_5, mult_~m=v_mult_~m_8} OutVars{mult_#in~m=|v_mult_#in~mInParam_1|, mult_#in~n=|v_mult_#in~nInParam_1|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 4#multENTRYtrue [2020-07-01 11:51:08,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:08,988 INFO L82 PathProgramCache]: Analyzing trace with hash 3815, now seen corresponding path program 1 times [2020-07-01 11:51:08,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:08,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658545772] [2020-07-01 11:51:08,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:09,071 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash 78540, now seen corresponding path program 1 times [2020-07-01 11:51:09,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:09,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722558982] [2020-07-01 11:51:09,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:09,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 113701414, now seen corresponding path program 1 times [2020-07-01 11:51:09,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:09,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138027067] [2020-07-01 11:51:09,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:09,151 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 11:51:09,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138027067] [2020-07-01 11:51:09,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:51:09,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 11:51:09,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079761774] [2020-07-01 11:51:09,249 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:09,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:09,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:09,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:09,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:09,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:09,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:09,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:09,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:51:09,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:09,252 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:09,267 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 11:51:09,274 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 11:51:09,277 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 11:51:09,280 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 11:51:09,283 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 11:51:09,286 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 11:51:09,293 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 11:51:09,379 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:09,380 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 11:51:09,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=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 11:51:09,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,433 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,434 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=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 11:51:09,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,471 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=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 11:51:09,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,508 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~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 11:51:09,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,544 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=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 11:51:09,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,581 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:09,581 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=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 11:51:09,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:09,615 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 11:51:09,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:09,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:09,732 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:09,734 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:09,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:09,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:09,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:09,735 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:09,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:09,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:09,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:09,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:51:09,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:09,736 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:09,737 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 11:51:09,740 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 11:51:09,743 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 11:51:09,746 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 11:51:09,748 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 11:51:09,751 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 11:51:09,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:09,814 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:09,820 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 11:51:09,825 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 11:51:09,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:09,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:09,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:09,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:09,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:09,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:09,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:09,835 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 11:51:09,868 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 11:51:09,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:09,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:09,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:09,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:09,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:09,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:09,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:09,873 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 11:51:09,906 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 11:51:09,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:09,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:09,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:09,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:09,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:09,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:09,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:09,912 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 11:51:09,944 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 11:51:09,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:09,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:09,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:09,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:09,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:09,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:09,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:09,950 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 11:51:09,982 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 11:51:09,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:09,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:09,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:09,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:09,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:09,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:09,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:09,989 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 11:51:10,021 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 11:51:10,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:10,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:10,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:10,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:10,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:10,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:10,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:10,028 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 11:51:10,061 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 11:51:10,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:10,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:10,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:10,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:10,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:10,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:10,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:10,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:10,086 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:51:10,086 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:51:10,097 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:10,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:10,098 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:10,099 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2020-07-01 11:51:10,133 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:10,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:10,182 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:51:10,184 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:10,203 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:51:10,204 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:10,227 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 11:51:10,256 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:51:10,261 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:51:10,263 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 13 states. Second operand 4 states. [2020-07-01 11:51:10,391 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 13 states.. Second operand 4 states. Result 55 states and 76 transitions. Complement of second has 16 states. [2020-07-01 11:51:10,391 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 11:51:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:51:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-07-01 11:51:10,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:51:10,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:10,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:51:10,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:10,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:51:10,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:10,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 76 transitions. [2020-07-01 11:51:10,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:51:10,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 37 states and 56 transitions. [2020-07-01 11:51:10,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-07-01 11:51:10,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-07-01 11:51:10,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 56 transitions. [2020-07-01 11:51:10,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:51:10,426 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 56 transitions. [2020-07-01 11:51:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 56 transitions. [2020-07-01 11:51:10,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2020-07-01 11:51:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-01 11:51:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-07-01 11:51:10,465 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-07-01 11:51:10,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:51:10,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:51:10,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:51:10,469 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-07-01 11:51:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:51:10,524 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-07-01 11:51:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:51:10,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-07-01 11:51:10,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:51:10,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 31 transitions. [2020-07-01 11:51:10,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-07-01 11:51:10,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 11:51:10,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-07-01 11:51:10,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:51:10,532 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-07-01 11:51:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-07-01 11:51:10,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2020-07-01 11:51:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 11:51:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-07-01 11:51:10,536 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-07-01 11:51:10,536 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-07-01 11:51:10,537 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:51:10,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2020-07-01 11:51:10,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:51:10,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:10,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:10,538 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:51:10,539 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:51:10,539 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY [90] ULTIMATE.startENTRY-->L34: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_13) (<= 0 v_ULTIMATE.start_main_~m~0_13)) InVars {} OutVars{ULTIMATE.start_main_~res1~0=v_ULTIMATE.start_main_~res1~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_13, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_13, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_7|, ULTIMATE.start_main_~res2~0=v_ULTIMATE.start_main_~res2~0_4, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res1~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~res2~0, ULTIMATE.start_main_#t~ret4] 189#L34 [64] L34-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_10) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_9)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 188#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 190#L16 [78] L16-->L19: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 191#L19 [81] L19-->L22: Formula: (< 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 184#L22 [60] L22-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 187#multENTRY [2020-07-01 11:51:10,539 INFO L796 eck$LassoCheckResult]: Loop: 187#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 199#L16 [52] L16-->L17: Formula: (< v_mult_~m_2 0) InVars {mult_~m=v_mult_~m_2} OutVars{mult_~m=v_mult_~m_2} AuxVars[] AssignedVars[] 183#L17 [48] L17-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_1| v_mult_~n_5) (= |v_mult_#in~mInParam_1| (- v_mult_~m_8))) InVars {mult_~n=v_mult_~n_5, mult_~m=v_mult_~m_8} OutVars{mult_#in~m=|v_mult_#in~mInParam_1|, mult_#in~n=|v_mult_#in~nInParam_1|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 187#multENTRY [2020-07-01 11:51:10,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:10,540 INFO L82 PathProgramCache]: Analyzing trace with hash -770197393, now seen corresponding path program 1 times [2020-07-01 11:51:10,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:10,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928966580] [2020-07-01 11:51:10,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:10,555 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash 78540, now seen corresponding path program 2 times [2020-07-01 11:51:10,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:10,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470446365] [2020-07-01 11:51:10,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:10,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1235190882, now seen corresponding path program 1 times [2020-07-01 11:51:10,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:10,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536396316] [2020-07-01 11:51:10,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:51:10,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536396316] [2020-07-01 11:51:10,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:51:10,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 11:51:10,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196316333] [2020-07-01 11:51:10,656 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:10,657 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:10,657 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:10,657 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:10,657 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:10,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:10,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:10,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:51:10,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:10,658 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:10,659 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 11:51:10,662 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 11:51:10,665 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 11:51:10,668 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 11:51:10,671 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 11:51:10,675 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 11:51:10,680 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 11:51:10,734 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:10,734 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,821 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,914 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:10,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:10,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:10,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:10,982 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:11,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:11,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:11,097 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:11,099 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:11,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:11,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:11,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:11,100 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:11,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:11,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:11,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:51:11,100 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:11,100 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:11,101 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 11:51:11,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:11,108 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 11:51:11,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:11,112 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 11:51:11,118 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 11:51:11,124 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 11:51:11,168 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:11,169 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,172 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 11:51:11,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,208 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 11:51:11,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,245 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 11:51:11,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,282 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 11:51:11,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,287 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:11,318 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 11:51:11,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,324 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 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 11:51:11,355 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 11:51:11,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:11,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:11,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:11,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:11,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:11,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:11,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:11,361 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:11,364 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:51:11,365 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:51:11,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:11,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:11,370 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:11,371 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2020-07-01 11:51:11,400 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:11,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:11,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:51:11,444 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:11,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:51:11,464 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:11,490 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 11:51:11,498 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:51:11,498 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:51:11,498 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 20 states and 25 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-07-01 11:51:11,605 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 20 states and 25 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 70 states and 101 transitions. Complement of second has 18 states. [2020-07-01 11:51:11,605 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 11:51:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:51:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2020-07-01 11:51:11,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:51:11,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:11,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 11:51:11,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:11,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 11:51:11,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:11,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 101 transitions. [2020-07-01 11:51:11,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-07-01 11:51:11,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 48 states and 69 transitions. [2020-07-01 11:51:11,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2020-07-01 11:51:11,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2020-07-01 11:51:11,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 69 transitions. [2020-07-01 11:51:11,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:51:11,618 INFO L688 BuchiCegarLoop]: Abstraction has 48 states and 69 transitions. [2020-07-01 11:51:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 69 transitions. [2020-07-01 11:51:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2020-07-01 11:51:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-01 11:51:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2020-07-01 11:51:11,626 INFO L711 BuchiCegarLoop]: Abstraction has 37 states and 49 transitions. [2020-07-01 11:51:11,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:51:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:51:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:51:11,627 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand 5 states. [2020-07-01 11:51:11,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:51:11,697 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-07-01 11:51:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 11:51:11,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-07-01 11:51:11,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-07-01 11:51:11,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 32 transitions. [2020-07-01 11:51:11,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-07-01 11:51:11,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-07-01 11:51:11,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2020-07-01 11:51:11,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:51:11,703 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-07-01 11:51:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2020-07-01 11:51:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-07-01 11:51:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-01 11:51:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-07-01 11:51:11,706 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-07-01 11:51:11,706 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-07-01 11:51:11,706 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:51:11,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2020-07-01 11:51:11,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-07-01 11:51:11,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:11,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:11,708 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:51:11,708 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:51:11,709 INFO L794 eck$LassoCheckResult]: Stem: 425#ULTIMATE.startENTRY [90] ULTIMATE.startENTRY-->L34: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_13) (<= 0 v_ULTIMATE.start_main_~m~0_13)) InVars {} OutVars{ULTIMATE.start_main_~res1~0=v_ULTIMATE.start_main_~res1~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_13, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_13, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_7|, ULTIMATE.start_main_~res2~0=v_ULTIMATE.start_main_~res2~0_4, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res1~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~res2~0, ULTIMATE.start_main_#t~ret4] 426#L34 [64] L34-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_10) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_9)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 430#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 438#L16 [78] L16-->L19: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 437#L19 [81] L19-->L22: Formula: (< 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 421#L22 [60] L22-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 420#multENTRY [2020-07-01 11:51:11,709 INFO L796 eck$LassoCheckResult]: Loop: 420#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 423#L16 [78] L16-->L19: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 424#L19 [81] L19-->L22: Formula: (< 0 v_mult_~m_6) InVars {mult_~m=v_mult_~m_6} OutVars{mult_~m=v_mult_~m_6} AuxVars[] AssignedVars[] 422#L22 [60] L22-->multENTRY: Formula: (and (= |v_mult_#in~mInParam_2| (+ v_mult_~m_9 (- 1))) (= |v_mult_#in~nInParam_2| v_mult_~n_6)) InVars {mult_~n=v_mult_~n_6, mult_~m=v_mult_~m_9} OutVars{mult_#in~m=|v_mult_#in~mInParam_2|, mult_#in~n=|v_mult_#in~nInParam_2|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 420#multENTRY [2020-07-01 11:51:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:11,709 INFO L82 PathProgramCache]: Analyzing trace with hash -770197393, now seen corresponding path program 2 times [2020-07-01 11:51:11,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:11,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755989585] [2020-07-01 11:51:11,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:11,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2460809, now seen corresponding path program 1 times [2020-07-01 11:51:11,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:11,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960395702] [2020-07-01 11:51:11,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash 363814391, now seen corresponding path program 3 times [2020-07-01 11:51:11,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:11,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165158] [2020-07-01 11:51:11,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:11,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:11,811 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:11,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:11,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:11,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:11,812 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:11,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:11,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:11,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:11,813 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:51:11,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:11,813 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:11,814 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 11:51:11,819 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 11:51:11,822 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 11:51:11,824 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 11:51:11,826 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 11:51:11,831 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 11:51:11,833 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 11:51:11,868 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:11,868 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:11,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:11,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:11,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:11,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:11,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:11,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:11,909 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:11,909 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:51:11,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:11,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:11,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:11,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=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 11:51:11,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:11,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:11,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:11,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:51:12,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:12,009 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:12,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:12,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:12,078 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:12,079 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:12,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:12,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:12,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:12,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:12,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:12,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:12,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:12,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:51:12,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:12,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:12,081 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 11:51:12,085 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 11:51:12,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:12,090 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 11:51:12,092 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 11:51:12,098 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 11:51:12,101 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 11:51:12,137 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:12,137 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:51:12,145 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 11:51:12,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,150 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 11:51:12,180 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 11:51:12,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,185 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 11:51:12,217 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 11:51:12,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,221 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 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 11:51:12,252 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 11:51:12,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,256 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 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 11:51:12,287 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 11:51:12,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:12,296 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:51:12,297 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:12,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:12,299 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:12,299 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:12,299 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2020-07-01 11:51:12,328 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:12,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:12,354 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:51:12,355 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:12,367 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:51:12,368 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:12,382 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 11:51:12,388 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:51:12,389 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:51:12,389 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 23 states and 27 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-07-01 11:51:12,454 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 23 states and 27 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 119 states and 129 transitions. Complement of second has 47 states. [2020-07-01 11:51:12,455 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 11:51:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:51:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2020-07-01 11:51:12,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 11:51:12,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:12,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 10 letters. Loop has 4 letters. [2020-07-01 11:51:12,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:12,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 6 letters. Loop has 8 letters. [2020-07-01 11:51:12,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:12,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 129 transitions. [2020-07-01 11:51:12,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:51:12,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 47 states and 53 transitions. [2020-07-01 11:51:12,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-07-01 11:51:12,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-07-01 11:51:12,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 53 transitions. [2020-07-01 11:51:12,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:51:12,465 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 53 transitions. [2020-07-01 11:51:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 53 transitions. [2020-07-01 11:51:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-07-01 11:51:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-01 11:51:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-07-01 11:51:12,469 INFO L711 BuchiCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-07-01 11:51:12,469 INFO L591 BuchiCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-07-01 11:51:12,469 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:51:12,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 46 transitions. [2020-07-01 11:51:12,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:51:12,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:12,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:12,472 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:51:12,472 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:51:12,472 INFO L794 eck$LassoCheckResult]: Stem: 676#ULTIMATE.startENTRY [90] ULTIMATE.startENTRY-->L34: Formula: (and (<= 0 v_ULTIMATE.start_main_~n~0_13) (<= 0 v_ULTIMATE.start_main_~m~0_13)) InVars {} OutVars{ULTIMATE.start_main_~res1~0=v_ULTIMATE.start_main_~res1~0_6, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_13, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_13, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_7|, ULTIMATE.start_main_~res2~0=v_ULTIMATE.start_main_~res2~0_4, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res1~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~res2~0, ULTIMATE.start_main_#t~ret4] 668#L34 [64] L34-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_10) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_9)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 680#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 686#L16 [78] L16-->L19: Formula: (>= v_mult_~m_4 0) InVars {mult_~m=v_mult_~m_4} OutVars{mult_~m=v_mult_~m_4} AuxVars[] AssignedVars[] 684#L19 [66] L19-->multFINAL: Formula: (and (= 0 v_mult_~m_5) (= |v_mult_#res_2| 0)) InVars {mult_~m=v_mult_~m_5} OutVars{mult_~m=v_mult_~m_5, mult_#res=|v_mult_#res_2|} AuxVars[] AssignedVars[mult_#res] 685#multFINAL [71] multFINAL-->multEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 687#multEXIT >[75] multEXIT-->L34-1: AOR: Formula: (= |v_ULTIMATE.start_main_#t~ret4_5| |v_mult_#resOutParam_3|) InVars {mult_#res=|v_mult_#resOutParam_3|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] LVA: Formula: (and (= |v_mult_#in~nInParam_3| v_ULTIMATE.start_main_~m~0_10) (= |v_mult_#in~mInParam_3| v_ULTIMATE.start_main_~n~0_9)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10} OutVars{mult_#in~m=|v_mult_#in~mInParam_3|, mult_#in~n=|v_mult_#in~nInParam_3|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n] 679#L34-1 [63] L34-1-->L35: Formula: (= v_ULTIMATE.start_main_~res1~0_4 |v_ULTIMATE.start_main_#t~ret4_4|) InVars {ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} OutVars{ULTIMATE.start_main_~res1~0=v_ULTIMATE.start_main_~res1~0_4, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res1~0, ULTIMATE.start_main_#t~ret4] 658#L35 [69] L35-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_4| v_ULTIMATE.start_main_~n~0_10) (= |v_mult_#in~mInParam_4| v_ULTIMATE.start_main_~m~0_11)) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_10, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_11} OutVars{mult_#in~m=|v_mult_#in~mInParam_4|, mult_#in~n=|v_mult_#in~nInParam_4|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 659#multENTRY [2020-07-01 11:51:12,472 INFO L796 eck$LassoCheckResult]: Loop: 659#multENTRY [49] multENTRY-->L16: Formula: (and (= v_mult_~n_1 |v_mult_#in~n_1|) (= v_mult_~m_1 |v_mult_#in~m_1|)) InVars {mult_#in~m=|v_mult_#in~m_1|, mult_#in~n=|v_mult_#in~n_1|} OutVars{mult_#in~m=|v_mult_#in~m_1|, mult_~n=v_mult_~n_1, mult_~m=v_mult_~m_1, mult_#in~n=|v_mult_#in~n_1|} AuxVars[] AssignedVars[mult_~n, mult_~m] 683#L16 [52] L16-->L17: Formula: (< v_mult_~m_2 0) InVars {mult_~m=v_mult_~m_2} OutVars{mult_~m=v_mult_~m_2} AuxVars[] AssignedVars[] 657#L17 [48] L17-->multENTRY: Formula: (and (= |v_mult_#in~nInParam_1| v_mult_~n_5) (= |v_mult_#in~mInParam_1| (- v_mult_~m_8))) InVars {mult_~n=v_mult_~n_5, mult_~m=v_mult_~m_8} OutVars{mult_#in~m=|v_mult_#in~mInParam_1|, mult_#in~n=|v_mult_#in~nInParam_1|} AuxVars[] AssignedVars[mult_#in~m, mult_#in~n]< 659#multENTRY [2020-07-01 11:51:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:12,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1248690648, now seen corresponding path program 1 times [2020-07-01 11:51:12,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:12,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953665666] [2020-07-01 11:51:12,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:12,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:12,486 INFO L82 PathProgramCache]: Analyzing trace with hash 78540, now seen corresponding path program 3 times [2020-07-01 11:51:12,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:12,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127065935] [2020-07-01 11:51:12,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:12,492 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:12,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1031295163, now seen corresponding path program 1 times [2020-07-01 11:51:12,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:12,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027065537] [2020-07-01 11:51:12,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:51:12,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027065537] [2020-07-01 11:51:12,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:51:12,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 11:51:12,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825857521] [2020-07-01 11:51:12,563 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:12,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:12,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:12,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:12,563 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:12,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:12,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:12,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:12,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:51:12,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:12,564 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:12,565 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 11:51:12,568 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 11:51:12,570 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 11:51:12,572 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 11:51:12,576 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 11:51:12,578 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 11:51:12,580 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 11:51:12,613 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:12,614 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:51:12,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:12,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:12,620 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:12,620 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} 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 11:51:12,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:12,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:12,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:12,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:51:12,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:12,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:12,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:12,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:12,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:12,721 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:12,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:12,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:12,834 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:12,835 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:12,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:12,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:12,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:12,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:12,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:12,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:12,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:12,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:51:12,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:12,837 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:12,838 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 11:51:12,841 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 11:51:12,843 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 11:51:12,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:12,850 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 11:51:12,852 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 11:51:12,854 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 11:51:12,889 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:12,890 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:51:12,892 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 11:51:12,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,898 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 11:51:12,929 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 11:51:12,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,933 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 11:51:12,964 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 11:51:12,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:12,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:12,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:12,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:12,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:12,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:12,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:12,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:12,972 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:51:12,972 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:51:12,975 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:12,975 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:12,975 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:12,975 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2020-07-01 11:51:13,004 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:13,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:51:13,032 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:13,056 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:51:13,057 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:13,073 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 11:51:13,115 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:51:13,115 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-07-01 11:51:13,115 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 41 states and 46 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-07-01 11:51:13,197 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 41 states and 46 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 48 states and 53 transitions. Complement of second has 13 states. [2020-07-01 11:51:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:51:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:51:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-01 11:51:13,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 11:51:13,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:13,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 12 letters. Loop has 3 letters. [2020-07-01 11:51:13,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:13,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 9 letters. Loop has 6 letters. [2020-07-01 11:51:13,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:13,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 53 transitions. [2020-07-01 11:51:13,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:51:13,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2020-07-01 11:51:13,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:51:13,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:51:13,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:51:13,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:51:13,203 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:51:13,203 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:51:13,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:51:13,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:51:13,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:51:13,203 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-07-01 11:51:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:51:13,204 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 11:51:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:51:13,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 11:51:13,205 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:51:13,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 11:51:13,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:51:13,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:51:13,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:51:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:51:13,206 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:51:13,206 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:51:13,206 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:51:13,206 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:51:13,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:51:13,206 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:51:13,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:51:13,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:13 BasicIcfg [2020-07-01 11:51:13,212 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:51:13,215 INFO L168 Benchmark]: Toolchain (without parser) took 5190.26 ms. Allocated memory was 514.9 MB in the beginning and 634.9 MB in the end (delta: 120.1 MB). Free memory was 438.3 MB in the beginning and 573.1 MB in the end (delta: -134.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:51:13,215 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:51:13,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.29 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 438.3 MB in the beginning and 528.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.88 ms. Allocated memory is still 561.0 MB. Free memory was 528.5 MB in the beginning and 526.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,216 INFO L168 Benchmark]: Boogie Preprocessor took 17.88 ms. Allocated memory is still 561.0 MB. Free memory was 526.5 MB in the beginning and 525.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,217 INFO L168 Benchmark]: RCFGBuilder took 268.81 ms. Allocated memory is still 561.0 MB. Free memory was 525.1 MB in the beginning and 511.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,217 INFO L168 Benchmark]: BlockEncodingV2 took 84.99 ms. Allocated memory is still 561.0 MB. Free memory was 511.4 MB in the beginning and 505.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,217 INFO L168 Benchmark]: TraceAbstraction took 171.45 ms. Allocated memory is still 561.0 MB. Free memory was 504.7 MB in the beginning and 493.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:13,218 INFO L168 Benchmark]: BuchiAutomizer took 4308.07 ms. Allocated memory was 561.0 MB in the beginning and 634.9 MB in the end (delta: 73.9 MB). Free memory was 493.2 MB in the beginning and 573.1 MB in the end (delta: -79.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:51:13,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 21 locations, 28 edges - StatisticsResult: Encoded RCFG 13 locations, 18 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 298.29 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 438.3 MB in the beginning and 528.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.88 ms. Allocated memory is still 561.0 MB. Free memory was 528.5 MB in the beginning and 526.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.88 ms. Allocated memory is still 561.0 MB. Free memory was 526.5 MB in the beginning and 525.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 268.81 ms. Allocated memory is still 561.0 MB. Free memory was 525.1 MB in the beginning and 511.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 84.99 ms. Allocated memory is still 561.0 MB. Free memory was 511.4 MB in the beginning and 505.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 171.45 ms. Allocated memory is still 561.0 MB. Free memory was 504.7 MB in the beginning and 493.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4308.07 ms. Allocated memory was 561.0 MB in the beginning and 634.9 MB in the end (delta: 73.9 MB). Free memory was 493.2 MB in the beginning and 573.1 MB in the end (delta: -79.9 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 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=13occurred 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, 5 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 5 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One nondeterministic module has affine ranking function -1 * \old(m) and consists of 6 locations. One nondeterministic module has affine ranking function \old(m) and consists of 5 locations. One nondeterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 33 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 109 SDtfs, 148 SDslu, 102 SDs, 0 SdLazy, 169 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:51:04.781 ----------------------------------------------- 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_IOxsvV/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:51:13.452 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check