/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:00:07,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:00:07,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:00:07,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:00:07,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:00:07,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:00:07,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:00:07,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:00:07,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:00:07,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:00:07,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:00:07,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:00:07,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:00:07,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:00:07,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:00:07,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:00:07,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:00:07,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:00:07,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:00:07,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:00:07,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:00:07,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:00:07,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:00:07,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:00:07,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:00:07,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:00:07,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:00:07,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:00:07,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:00:07,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:00:07,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:00:07,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:00:07,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:00:07,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:00:07,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:00:07,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:00:07,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:00:07,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:00:07,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:00:07,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:00:07,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:00:07,177 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:00:07,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:00:07,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:00:07,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:00:07,193 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:00:07,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:00:07,193 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:00:07,193 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:00:07,194 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:00:07,194 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:00:07,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:00:07,194 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:00:07,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:00:07,195 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:00:07,195 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:00:07,195 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:07,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:00:07,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:00:07,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:00:07,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:00:07,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:00:07,196 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:00:07,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:00:07,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:00:07,197 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:00:07,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:00:07,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:00:07,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:00:07,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:00:07,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:00:07,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:00:07,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:00:07,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:00:07,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:00:07,381 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:00:07,381 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:00:07,441 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_QeKMws/tmp/c7f40ade13e44ed09e3c20e996ab5004/FLAG2ea74f0b9 [2020-07-01 11:00:07,773 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:00:07,774 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:00:07,780 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_QeKMws/tmp/c7f40ade13e44ed09e3c20e996ab5004/FLAG2ea74f0b9 [2020-07-01 11:00:08,185 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_QeKMws/tmp/c7f40ade13e44ed09e3c20e996ab5004 [2020-07-01 11:00:08,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:00:08,198 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:00:08,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:00:08,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:00:08,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:00:08,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4587fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08, skipping insertion in model container [2020-07-01 11:00:08,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:00:08,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:00:08,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:00:08,466 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:00:08,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:00:08,497 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:00:08,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08 WrapperNode [2020-07-01 11:00:08,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:00:08,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:00:08,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:00:08,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:00:08,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:00:08,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:00:08,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:00:08,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:00:08,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:00:08,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:00:08,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:00:08,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:00:08,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:00:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:00:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:00:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-01 11:00:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-01 11:00:08,770 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:00:08,771 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 11:00:08,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:08 BoogieIcfgContainer [2020-07-01 11:00:08,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:00:08,775 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:00:08,775 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:00:08,778 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:00:08,778 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:08" (1/1) ... [2020-07-01 11:00:08,792 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2020-07-01 11:00:08,793 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:00:08,794 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:00:08,794 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:00:08,795 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:00:08,797 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:00:08,798 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:00:08,798 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:00:08,812 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:00:08,826 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:00:08,831 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:00:08,833 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:00:08,841 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:00:08,843 INFO L70 RemoveSinkStates]: Removed 6 edges and 5 locations by removing sink states [2020-07-01 11:00:08,845 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:00:08,845 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:00:08,845 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:00:08,846 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:00:08,846 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 10 edges [2020-07-01 11:00:08,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:00:08 BasicIcfg [2020-07-01 11:00:08,847 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:00:08,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:00:08,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:00:08,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:00:08,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:00:08" (1/4) ... [2020-07-01 11:00:08,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429989ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:00:08, skipping insertion in model container [2020-07-01 11:00:08,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (2/4) ... [2020-07-01 11:00:08,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429989ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:00:08, skipping insertion in model container [2020-07-01 11:00:08,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:08" (3/4) ... [2020-07-01 11:00:08,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429989ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:00:08, skipping insertion in model container [2020-07-01 11:00:08,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:00:08" (4/4) ... [2020-07-01 11:00:08,856 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:00:08,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:00:08,873 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:00:08,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:00:08,909 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:00:08,909 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:00:08,910 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:00:08,910 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:00:08,910 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:00:08,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:00:08,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:00:08,910 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:00:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 11:00:08,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:00:08,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 11:00:09,000 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-01 11:00:09,000 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:00:09,000 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-07-01 11:00:09,000 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-07-01 11:00:09,001 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-07-01 11:00:09,001 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-07-01 11:00:09,001 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-07-01 11:00:09,001 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-07-01 11:00:09,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:00:09 BasicIcfg [2020-07-01 11:00:09,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:00:09,006 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:00:09,006 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:00:09,010 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:00:09,011 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:00:09,011 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:00:08" (1/5) ... [2020-07-01 11:00:09,012 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d471fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:00:09, skipping insertion in model container [2020-07-01 11:00:09,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:00:09,012 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:00:08" (2/5) ... [2020-07-01 11:00:09,012 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d471fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:00:09, skipping insertion in model container [2020-07-01 11:00:09,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:00:09,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:08" (3/5) ... [2020-07-01 11:00:09,013 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d471fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:00:09, skipping insertion in model container [2020-07-01 11:00:09,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:00:09,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:00:08" (4/5) ... [2020-07-01 11:00:09,014 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d471fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:00:09, skipping insertion in model container [2020-07-01 11:00:09,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:00:09,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:00:09" (5/5) ... [2020-07-01 11:00:09,015 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:00:09,044 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:00:09,045 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:00:09,045 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:00:09,045 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:00:09,045 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:00:09,045 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:00:09,045 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:00:09,046 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:00:09,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 11:00:09,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:00:09,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:00:09,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:00:09,074 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:00:09,075 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:00:09,075 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:00:09,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 11:00:09,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:00:09,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:00:09,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:00:09,076 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:00:09,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:00:09,081 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L14: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~ret1=|v_ULTIMATE.start_main_#t~ret1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~result~0] 8#L14true [39] L14-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_1| v_ULTIMATE.start_main_~a~0_7) (= |v_sum_#in~mInParam_1| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{sum_#in~m=|v_sum_#in~mInParam_1|, sum_#in~n=|v_sum_#in~nInParam_1|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 4#sumENTRYtrue [2020-07-01 11:00:09,082 INFO L796 eck$LassoCheckResult]: Loop: 4#sumENTRYtrue [33] sumENTRY-->L4: Formula: (and (= v_sum_~n_4 |v_sum_#in~n_1|) (= v_sum_~m_3 |v_sum_#in~m_1|)) InVars {sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_4, sum_~m=v_sum_~m_3, sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n, sum_~m] 6#L4true [44] L4-->L7: Formula: (< 0 v_sum_~n_2) InVars {sum_~n=v_sum_~n_2} OutVars{sum_~n=v_sum_~n_2} AuxVars[] AssignedVars[] 9#L7true [32] L7-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_2| (+ v_sum_~n_5 (- 1))) (= |v_sum_#in~mInParam_2| (+ v_sum_~m_4 1))) InVars {sum_~n=v_sum_~n_5, sum_~m=v_sum_~m_4} OutVars{sum_#in~m=|v_sum_#in~mInParam_2|, sum_#in~n=|v_sum_#in~nInParam_2|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 4#sumENTRYtrue [2020-07-01 11:00:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-07-01 11:00:09,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:09,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938094795] [2020-07-01 11:00:09,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,167 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:09,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:09,168 INFO L82 PathProgramCache]: Analyzing trace with hash 62900, now seen corresponding path program 1 times [2020-07-01 11:00:09,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:09,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892538906] [2020-07-01 11:00:09,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,191 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:09,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:09,193 INFO L82 PathProgramCache]: Analyzing trace with hash 61223823, now seen corresponding path program 1 times [2020-07-01 11:00:09,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:09,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997548800] [2020-07-01 11:00:09,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:09,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:09,308 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:00:09,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:00:09,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:00:09,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:00:09,310 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:00:09,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:09,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:00:09,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:00:09,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:00:09,311 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:00:09,311 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:00:09,326 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 11:00:09,334 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 11:00:09,337 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 11:00:09,348 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 11:00:09,352 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 11:00:09,356 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 11:00:09,430 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:00:09,430 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:09,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:09,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:09,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:09,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:09,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:09,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:09,485 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:09,485 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:09,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:09,517 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:09,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:00:09,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:09,590 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:00:09,592 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:00:09,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:00:09,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:00:09,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:00:09,593 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:00:09,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:00:09,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:00:09,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:00:09,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:00:09,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:00:09,594 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:00:09,595 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 11:00:09,599 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 11:00:09,602 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 11:00:09,609 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 11:00:09,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:00:09,618 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 11:00:09,682 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:00:09,688 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:00:09,706 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 11:00:09,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:00:09,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:00:09,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:00:09,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:00:09,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:00:09,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:00:09,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:00:09,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:00:09,751 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 11:00:09,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:00:09,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:00:09,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:00:09,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:00:09,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:00:09,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:00:09,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:00:09,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:00:09,791 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 11:00:09,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:00:09,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:00:09,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:00:09,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:00:09,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:00:09,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:00:09,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:00:09,798 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:00:09,804 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:00:09,804 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:00:09,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:00:09,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:00:09,818 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:00:09,820 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2020-07-01 11:00:09,854 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:00:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:00:09,900 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:00:09,902 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:00:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:00:09,928 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:00:09,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:00:09,955 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 11:00:09,976 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:00:09,981 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:00:09,983 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 4 states. [2020-07-01 11:00:10,096 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 4 states. Result 57 states and 82 transitions. Complement of second has 24 states. [2020-07-01 11:00:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 11:00:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:00:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2020-07-01 11:00:10,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:00:10,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:00:10,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:00:10,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:00:10,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:00:10,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:00:10,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 82 transitions. [2020-07-01 11:00:10,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:00:10,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 21 states and 26 transitions. [2020-07-01 11:00:10,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:00:10,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 11:00:10,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2020-07-01 11:00:10,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:00:10,133 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-07-01 11:00:10,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2020-07-01 11:00:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 11. [2020-07-01 11:00:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 11:00:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-07-01 11:00:10,167 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 11:00:10,167 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 11:00:10,167 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:00:10,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-07-01 11:00:10,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:00:10,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:00:10,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:00:10,169 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:00:10,169 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:00:10,170 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L14: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~ret1=|v_ULTIMATE.start_main_#t~ret1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~result~0] 137#L14 [39] L14-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_1| v_ULTIMATE.start_main_~a~0_7) (= |v_sum_#in~mInParam_1| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{sum_#in~m=|v_sum_#in~mInParam_1|, sum_#in~n=|v_sum_#in~nInParam_1|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 139#sumENTRY [33] sumENTRY-->L4: Formula: (and (= v_sum_~n_4 |v_sum_#in~n_1|) (= v_sum_~m_3 |v_sum_#in~m_1|)) InVars {sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_4, sum_~m=v_sum_~m_3, sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n, sum_~m] 132#L4 [2020-07-01 11:00:10,170 INFO L796 eck$LassoCheckResult]: Loop: 132#L4 [45] L4-->L7: Formula: (> 0 v_sum_~n_2) InVars {sum_~n=v_sum_~n_2} OutVars{sum_~n=v_sum_~n_2} AuxVars[] AssignedVars[] 131#L7 [32] L7-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_2| (+ v_sum_~n_5 (- 1))) (= |v_sum_#in~mInParam_2| (+ v_sum_~m_4 1))) InVars {sum_~n=v_sum_~n_5, sum_~m=v_sum_~m_4} OutVars{sum_#in~m=|v_sum_#in~mInParam_2|, sum_#in~n=|v_sum_#in~nInParam_2|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 130#sumENTRY [33] sumENTRY-->L4: Formula: (and (= v_sum_~n_4 |v_sum_#in~n_1|) (= v_sum_~m_3 |v_sum_#in~m_1|)) InVars {sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_4, sum_~m=v_sum_~m_3, sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n, sum_~m] 132#L4 [2020-07-01 11:00:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times [2020-07-01 11:00:10,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:10,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394414029] [2020-07-01 11:00:10,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:10,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:10,179 INFO L82 PathProgramCache]: Analyzing trace with hash 74061, now seen corresponding path program 1 times [2020-07-01 11:00:10,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:10,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502637403] [2020-07-01 11:00:10,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,191 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:10,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:00:10,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1897939507, now seen corresponding path program 1 times [2020-07-01 11:00:10,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:00:10,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057171855] [2020-07-01 11:00:10,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:00:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:00:10,206 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:00:10,278 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:00:10,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:00:10,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:00:10,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:00:10,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:00:10,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:00:10,279 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:00:10,279 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:00:10,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:00:10,280 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:00:10,281 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 11:00:10,290 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 11:00:10,299 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 11:00:10,303 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 11:00:10,360 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:00:10,360 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:10,364 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:00:10,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:10,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:10,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=6, sum_#in~m=6} Honda state: {sum_~m=6, sum_#in~m=6} Generalized eigenvectors: [{sum_~m=1, sum_#in~m=1}, {sum_~m=0, sum_#in~m=0}, {sum_~m=0, sum_#in~m=0}] Lambdas: [1, 15, 15] Nus: [1, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:10,645 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:00:10,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:10,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:10,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~n=-1, sum_#in~n=-4} Honda state: {sum_~n=-1, sum_#in~n=-4} Generalized eigenvectors: [{sum_~n=0, sum_#in~n=-3}, {sum_~n=0, sum_#in~n=6}, {sum_~n=-1, sum_#in~n=-1}] Lambdas: [2, 0, 1] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:10,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:10,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:10,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:10,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:10,911 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:10,911 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret0=0} Honda state: {sum_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:00:10,976 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:00:10,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:00:10,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:00:10,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:00:10,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:00:10,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:10,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:00:10,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:00:10,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 11:00:10,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:00:10,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:00:10,980 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 11:00:10,983 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 11:00:10,986 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 11:00:10,989 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 11:00:10,998 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 11:00:11,001 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 11:00:11,004 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 11:00:11,006 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 11:00:11,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:00:11,018 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 11:00:11,110 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:00:11,110 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,122 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/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=0} Honda state: {ULTIMATE.start_main_~b~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,195 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret1=0} Honda state: {ULTIMATE.start_main_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,228 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:00:11,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,409 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,410 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#in~n=0, sum_~n=0} Honda state: {sum_#in~n=-6, sum_~n=-6} Generalized eigenvectors: [{sum_#in~n=-1, sum_~n=-1}, {sum_#in~n=1, sum_~n=0}, {sum_#in~n=-1, sum_~n=0}] Lambdas: [1, 1, 0] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,482 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,482 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret2=0} Honda state: {ULTIMATE.start_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,534 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,535 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret0=0} Honda state: {sum_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~result~0=0} Honda state: {ULTIMATE.start_main_~result~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,603 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:00:11,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,795 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,795 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0, sum_#in~m=0} Honda state: {sum_~m=-4, sum_#in~m=-4} Generalized eigenvectors: [{sum_~m=1, sum_#in~m=1}, {sum_~m=0, sum_#in~m=0}, {sum_~m=0, sum_#in~m=0}] Lambdas: [1, 13, 0] Nus: [1, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:00:11,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:00:11,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:00:11,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:00:11,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0=0} Honda state: {ULTIMATE.start_main_~a~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:00:11,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:00:11 BasicIcfg [2020-07-01 11:00:11,880 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:00:11,882 INFO L168 Benchmark]: Toolchain (without parser) took 3684.13 ms. Allocated memory was 649.6 MB in the beginning and 756.0 MB in the end (delta: 106.4 MB). Free memory was 562.6 MB in the beginning and 691.7 MB in the end (delta: -129.1 MB). Peak memory consumption was 223.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,883 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:00:11,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.28 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 562.6 MB in the beginning and 652.9 MB in the end (delta: -90.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.29 ms. Allocated memory is still 689.4 MB. Free memory was 652.9 MB in the beginning and 651.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,885 INFO L168 Benchmark]: Boogie Preprocessor took 16.86 ms. Allocated memory is still 689.4 MB. Free memory was 651.5 MB in the beginning and 650.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,885 INFO L168 Benchmark]: RCFGBuilder took 223.41 ms. Allocated memory is still 689.4 MB. Free memory was 650.2 MB in the beginning and 635.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,886 INFO L168 Benchmark]: BlockEncodingV2 took 71.77 ms. Allocated memory is still 689.4 MB. Free memory was 635.9 MB in the beginning and 629.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,886 INFO L168 Benchmark]: TraceAbstraction took 156.99 ms. Allocated memory is still 689.4 MB. Free memory was 629.4 MB in the beginning and 620.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,887 INFO L168 Benchmark]: BuchiAutomizer took 2874.21 ms. Allocated memory was 689.4 MB in the beginning and 756.0 MB in the end (delta: 66.6 MB). Free memory was 618.6 MB in the beginning and 691.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 239.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:00:11,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 16 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 299.28 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 562.6 MB in the beginning and 652.9 MB in the end (delta: -90.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.29 ms. Allocated memory is still 689.4 MB. Free memory was 652.9 MB in the beginning and 651.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.86 ms. Allocated memory is still 689.4 MB. Free memory was 651.5 MB in the beginning and 650.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.41 ms. Allocated memory is still 689.4 MB. Free memory was 650.2 MB in the beginning and 635.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.77 ms. Allocated memory is still 689.4 MB. Free memory was 635.9 MB in the beginning and 629.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 156.99 ms. Allocated memory is still 689.4 MB. Free memory was 629.4 MB in the beginning and 620.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2874.21 ms. Allocated memory was 689.4 MB in the beginning and 756.0 MB in the end (delta: 66.6 MB). Free memory was 618.6 MB in the beginning and 691.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 239.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 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=8occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 21 SDslu, 9 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq172 hnf92 smp100 dnf100 smp100 tf109 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 4]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {\result=0, \old(n)=0, a=0, \old(m)=0, result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b2daddc=0, b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a832cb4=0, n=0, m=0, NULL=0} State at position 1 is {\result=0, \old(n)=-6, a=0, \old(m)=-4, result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b2daddc=0, b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a832cb4=0, n=-6, m=-4, NULL=0} For i>1, the state at position i is {\result=0 + sum_{k=0}^i 0, \old(n)=-6 + sum_{k=0}^i -1 + 1 + -1*0^k + -1*k, a=0 + sum_{k=0}^i 0, \old(m)=-4 + sum_{k=0}^i 1, result=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b2daddc=0 + sum_{k=0}^i 0, b=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a832cb4=0 + sum_{k=0}^i 0, n=-6 + sum_{k=0}^i -1, m=-4 + sum_{k=0}^i 1, NULL=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 4GEVs Lambdas: [1, 1, 0, 1, 13, 0] Mus: [0, 1, 0, 1, 1] - NonterminatingLassoResult [Line: 4]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int a; [L13] int b; [L14] CALL sum(a, b) Loop: [L4] COND FALSE !(n == 0) [L7] CALL sum(n - 1, m + 1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:00:04.921 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_QeKMws/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:00:12.127 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check