/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:03:36,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:03:36,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:03:36,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:03:36,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:03:36,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:03:36,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:03:36,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:03:36,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:03:36,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:03:36,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:03:36,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:03:36,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:03:36,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:03:36,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:03:36,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:03:36,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:03:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:03:36,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:03:36,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:03:36,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:03:36,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:03:36,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:03:36,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:03:36,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:03:36,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:03:36,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:03:36,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:03:36,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:03:36,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:03:36,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:03:36,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:03:36,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:03:36,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:03:36,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:03:36,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:03:36,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:03:36,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:03:36,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:03:36,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:03:36,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:03:36,191 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:03:36,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:03:36,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:03:36,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:03:36,207 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:03:36,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:03:36,208 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:36,208 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:03:36,208 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:03:36,208 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:03:36,208 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:03:36,208 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:03:36,209 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:03:36,209 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:03:36,209 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:03:36,209 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:36,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:03:36,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:03:36,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:03:36,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:03:36,210 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:03:36,210 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:03:36,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:03:36,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:03:36,211 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:03:36,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:03:36,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:03:36,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:03:36,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:03:36,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:03:36,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:03:36,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:03:36,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:03:36,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:03:36,416 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:03:36,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:03:36,485 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_GRaY8m/tmp/311288f1bcce41d29a97ed4aa0f1aefe/FLAGcf0c4981b [2020-07-01 11:03:36,813 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:03:36,814 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:03:36,821 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_GRaY8m/tmp/311288f1bcce41d29a97ed4aa0f1aefe/FLAGcf0c4981b [2020-07-01 11:03:37,223 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_GRaY8m/tmp/311288f1bcce41d29a97ed4aa0f1aefe [2020-07-01 11:03:37,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:03:37,236 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:03:37,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:37,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:03:37,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:03:37,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168b6071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37, skipping insertion in model container [2020-07-01 11:03:37,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:03:37,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:03:37,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:37,501 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:03:37,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:37,533 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:03:37,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37 WrapperNode [2020-07-01 11:03:37,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:37,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:37,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:03:37,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:03:37,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:37,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:03:37,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:03:37,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:03:37,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:03:37,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:03:37,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:03:37,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:03:37,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:03:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:03:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:03:37,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:03:37,826 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:03:37,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:37 BoogieIcfgContainer [2020-07-01 11:03:37,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:03:37,830 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:03:37,831 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:03:37,833 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:03:37,833 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:37" (1/1) ... [2020-07-01 11:03:37,846 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:03:37,848 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:03:37,849 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:03:37,849 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:03:37,850 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:37,851 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:03:37,852 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:03:37,852 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:03:37,867 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:03:37,882 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:03:37,886 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:03:37,888 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:37,899 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:03:37,901 INFO L70 RemoveSinkStates]: Removed 5 edges and 2 locations by removing sink states [2020-07-01 11:03:37,903 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:37,903 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:37,909 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:03:37,910 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:37,910 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:37,910 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:37,911 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:03:37,911 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:37,911 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-07-01 11:03:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:37 BasicIcfg [2020-07-01 11:03:37,912 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:03:37,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:03:37,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:03:37,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:03:37,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:03:37" (1/4) ... [2020-07-01 11:03:37,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8e6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:37, skipping insertion in model container [2020-07-01 11:03:37,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (2/4) ... [2020-07-01 11:03:37,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8e6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:37, skipping insertion in model container [2020-07-01 11:03:37,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:37" (3/4) ... [2020-07-01 11:03:37,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8e6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:37, skipping insertion in model container [2020-07-01 11:03:37,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:37" (4/4) ... [2020-07-01 11:03:37,921 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:37,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:03:37,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:03:37,952 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:03:37,976 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:03:37,976 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:03:37,976 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:37,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:37,977 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:37,977 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:03:37,977 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:37,977 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:03:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:03:37,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:03:37,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:03:38,053 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 22) the Hoare annotation is: true [2020-07-01 11:03:38,053 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:03:38,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:38 BasicIcfg [2020-07-01 11:03:38,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:03:38,062 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:03:38,062 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:03:38,066 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:03:38,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:38,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:03:37" (1/5) ... [2020-07-01 11:03:38,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e81329f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:38, skipping insertion in model container [2020-07-01 11:03:38,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:38,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:37" (2/5) ... [2020-07-01 11:03:38,068 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e81329f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:38, skipping insertion in model container [2020-07-01 11:03:38,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:38,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:37" (3/5) ... [2020-07-01 11:03:38,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e81329f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:38, skipping insertion in model container [2020-07-01 11:03:38,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:38,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:37" (4/5) ... [2020-07-01 11:03:38,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e81329f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:38, skipping insertion in model container [2020-07-01 11:03:38,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:38,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:38" (5/5) ... [2020-07-01 11:03:38,071 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:38,099 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:03:38,099 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:03:38,099 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:38,099 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:38,099 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:38,100 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:03:38,100 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:38,100 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:03:38,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:03:38,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:38,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:38,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:38,126 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:38,126 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:38,126 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:03:38,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:03:38,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:38,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:38,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:38,127 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:38,127 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:38,133 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 11:03:38,133 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [38] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 11:03:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 73, now seen corresponding path program 1 times [2020-07-01 11:03:38,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:38,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646516044] [2020-07-01 11:03:38,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,228 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:38,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:38,229 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-07-01 11:03:38,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:38,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558190011] [2020-07-01 11:03:38,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:38,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:38,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2301, now seen corresponding path program 1 times [2020-07-01 11:03:38,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:38,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526533157] [2020-07-01 11:03:38,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:38,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:38,307 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:38,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:38,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:38,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:38,309 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:38,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:38,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:38,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:38,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:03:38,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:38,310 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:38,355 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 11:03:38,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:38,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:38,461 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:38,462 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:38,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:38,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:38,481 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:38,482 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:38,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:38,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:38,522 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:38,522 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:38,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:38,557 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:38,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:38,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-6, ULTIMATE.start_main_~b~0=3, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-6, ULTIMATE.start_main_~b~0=3, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=6, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~b~0=3, ULTIMATE.start_main_~x~0=-2}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~a~0=5, ULTIMATE.start_main_~b~0=5, ULTIMATE.start_main_~x~0=-8}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~a~0=-8, ULTIMATE.start_main_~b~0=-8, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2020-07-01 11:03:39,106 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:39,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:39,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:39,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:39,107 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:39,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:39,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:39,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:39,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:03:39,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:39,108 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:39,111 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 11:03:39,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:39,121 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 11:03:39,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:39,129 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 11:03:39,132 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 11:03:39,166 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 11:03:39,171 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 11:03:39,256 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:39,257 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 11:03:39,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:03:39,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:03:39,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:03:39,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,400 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,400 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:39,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:39,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:39,438 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:39,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:39,472 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:39,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:39,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:40,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:03:40,137 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:40,137 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:40,137 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:40,137 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:40,138 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:03:40,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:40,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:40,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:40,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:03:40,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:40,138 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:40,141 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 11:03:40,145 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 11:03:40,147 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 11:03:40,150 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 11:03:40,152 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 11:03:40,155 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 11:03:40,157 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 11:03:40,171 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 11:03:40,280 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:40,286 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:03:40,292 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 11:03:40,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:40,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:40,313 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:03:40,350 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 11:03:40,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:40,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:40,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:40,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:03:40,392 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 11:03:40,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:40,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:40,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:40,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:03:40,439 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 11:03:40,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:40,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:40,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:40,445 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:40,483 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 11:03:40,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:40,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:40,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:40,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:40,527 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 11:03:40,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:40,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:40,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:40,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:40,566 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 11:03:40,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:40,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:40,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:40,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:40,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:40,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:40,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:03:40,605 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:03:40,606 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:40,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:03:40,621 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:03:40,621 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:03:40,622 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [-1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 >= 0] [2020-07-01 11:03:40,662 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:03:40,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:40,718 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:03:40,720 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:40,731 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:03:40,732 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:40,732 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 11:03:40,756 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:03:40,762 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:03:40,763 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 11:03:40,825 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 11 transitions. Complement of second has 4 states. [2020-07-01 11:03:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:03:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:03:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:03:40,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 11:03:40,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:40,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:03:40,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:40,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:03:40,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:40,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. [2020-07-01 11:03:40,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:40,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. [2020-07-01 11:03:40,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:03:40,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:03:40,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. [2020-07-01 11:03:40,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:03:40,846 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-07-01 11:03:40,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. [2020-07-01 11:03:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:03:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:03:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-07-01 11:03:40,875 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 11:03:40,875 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 11:03:40,875 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:03:40,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. [2020-07-01 11:03:40,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:40,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:40,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:40,877 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:03:40,877 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:40,877 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 47#L19-2 [39] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L19-2 [2020-07-01 11:03:40,878 INFO L796 eck$LassoCheckResult]: Loop: 48#L19-2 [39] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L19-2 [2020-07-01 11:03:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:40,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2302, now seen corresponding path program 1 times [2020-07-01 11:03:40,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:40,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349278200] [2020-07-01 11:03:40,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:40,915 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 11:03:40,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349278200] [2020-07-01 11:03:40,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:03:40,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 11:03:40,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927552281] [2020-07-01 11:03:40,920 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:03:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2020-07-01 11:03:40,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:40,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609263442] [2020-07-01 11:03:40,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:40,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:40,948 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:40,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:40,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:40,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:40,948 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:40,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:40,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:40,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:40,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:03:40,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:40,949 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:40,951 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 11:03:40,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:40,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:41,020 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:41,020 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:41,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:41,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:41,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:41,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:41,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:41,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:41,071 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:41,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:41,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:41,104 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:41,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:41,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:42,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:42,253 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=2, ULTIMATE.start_main_~b~0=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=2, ULTIMATE.start_main_~b~0=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~a~0=1, ULTIMATE.start_main_~b~0=1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~a~0=-1, ULTIMATE.start_main_~b~0=-1, ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 1] Nus: [0, 0] [2020-07-01 11:03:42,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:03:42,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 11:03:42,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 11:03:42,288 INFO L87 Difference]: Start difference. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:03:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:03:42,298 INFO L93 Difference]: Finished difference Result 5 states and 8 transitions. [2020-07-01 11:03:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 11:03:42,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 8 transitions. [2020-07-01 11:03:42,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:42,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:03:42,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:03:42,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-01 11:03:42,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8 transitions. [2020-07-01 11:03:42,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:03:42,302 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:03:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 8 transitions. [2020-07-01 11:03:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-01 11:03:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:03:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:03:42,303 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:03:42,303 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:03:42,303 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:03:42,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:03:42,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:42,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:42,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:42,304 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:03:42,304 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:42,305 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY [42] ULTIMATE.startENTRY-->L19-2: Formula: (and (= (+ v_ULTIMATE.start_main_~b~0_9 1) v_ULTIMATE.start_main_~a~0_9) (< v_ULTIMATE.start_main_~x~0_11 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 63#L19-2 [38] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 66#L19-2 [39] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 64#L19-2 [2020-07-01 11:03:42,305 INFO L796 eck$LassoCheckResult]: Loop: 64#L19-2 [39] L19-2-->L19-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (= v_ULTIMATE.start_main_~x~0_9 (+ v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~a~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 64#L19-2 [2020-07-01 11:03:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:42,305 INFO L82 PathProgramCache]: Analyzing trace with hash 71370, now seen corresponding path program 1 times [2020-07-01 11:03:42,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:42,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170351496] [2020-07-01 11:03:42,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:03:42,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170351496] [2020-07-01 11:03:42,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476357879] [2020-07-01 11:03:42,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:03:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:42,359 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:03:42,359 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:03:42,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 11:03:42,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2020-07-01 11:03:42,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702791738] [2020-07-01 11:03:42,386 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:03:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:42,386 INFO L82 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 2 times [2020-07-01 11:03:42,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:42,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898459604] [2020-07-01 11:03:42,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:42,394 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:42,409 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:42,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:42,410 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:42,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:42,410 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:42,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:42,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:42,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:42,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:03:42,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:42,410 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:42,412 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 11:03:42,421 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 11:03:42,424 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 11:03:42,482 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:42,482 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:42,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:42,493 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:42,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:42,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:43,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:43,040 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=2} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=2} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~a~0=-7, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=-7}, {ULTIMATE.start_main_~y~0=-7, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=7}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~b~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:43,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:43,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:43,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:43,078 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:43,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:43,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:43,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:43,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:03:43,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:03:43,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:03:43,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:03:43,143 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-07-01 11:03:43,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:03:43,152 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2020-07-01 11:03:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 11:03:43,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-07-01 11:03:43,154 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:03:43,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-07-01 11:03:43,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:03:43,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:03:43,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:03:43,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:03:43,155 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:43,155 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:43,155 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:43,155 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:03:43,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:03:43,155 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:03:43,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:03:43,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:43 BasicIcfg [2020-07-01 11:03:43,161 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:03:43,164 INFO L168 Benchmark]: Toolchain (without parser) took 5927.55 ms. Allocated memory was 514.9 MB in the beginning and 569.9 MB in the end (delta: 55.1 MB). Free memory was 438.4 MB in the beginning and 409.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,164 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:03:43,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.87 ms. Allocated memory was 514.9 MB in the beginning and 540.5 MB in the end (delta: 25.7 MB). Free memory was 437.9 MB in the beginning and 507.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 540.5 MB. Free memory was 507.9 MB in the beginning and 506.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,166 INFO L168 Benchmark]: Boogie Preprocessor took 20.01 ms. Allocated memory is still 540.5 MB. Free memory was 506.2 MB in the beginning and 505.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,167 INFO L168 Benchmark]: RCFGBuilder took 239.41 ms. Allocated memory is still 540.5 MB. Free memory was 505.1 MB in the beginning and 493.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,167 INFO L168 Benchmark]: BlockEncodingV2 took 81.66 ms. Allocated memory is still 540.5 MB. Free memory was 493.3 MB in the beginning and 487.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,168 INFO L168 Benchmark]: TraceAbstraction took 148.36 ms. Allocated memory is still 540.5 MB. Free memory was 486.8 MB in the beginning and 478.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,168 INFO L168 Benchmark]: BuchiAutomizer took 5099.33 ms. Allocated memory was 540.5 MB in the beginning and 569.9 MB in the end (delta: 29.4 MB). Free memory was 478.0 MB in the beginning and 409.0 MB in the end (delta: 69.0 MB). Peak memory consumption was 98.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:43,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 3 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 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 297.87 ms. Allocated memory was 514.9 MB in the beginning and 540.5 MB in the end (delta: 25.7 MB). Free memory was 437.9 MB in the beginning and 507.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 540.5 MB. Free memory was 507.9 MB in the beginning and 506.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.01 ms. Allocated memory is still 540.5 MB. Free memory was 506.2 MB in the beginning and 505.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 239.41 ms. Allocated memory is still 540.5 MB. Free memory was 505.1 MB in the beginning and 493.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.66 ms. Allocated memory is still 540.5 MB. Free memory was 493.3 MB in the beginning and 487.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.36 ms. Allocated memory is still 540.5 MB. Free memory was 486.8 MB in the beginning and 478.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 5099.33 ms. Allocated memory was 540.5 MB in the beginning and 569.9 MB in the end (delta: 29.4 MB). Free memory was 478.0 MB in the beginning and 409.0 MB in the end (delta: 69.0 MB). Peak memory consumption was 98.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax146 hnf94 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf94 smp100 dnf100 smp100 tf103 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:03:33.944 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_GRaY8m/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:03:43.806 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check