/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:03:22,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:03:22,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:03:22,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:03:22,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:03:22,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:03:22,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:03:22,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:03:22,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:03:22,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:03:22,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:03:22,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:03:22,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:03:22,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:03:22,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:03:22,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:03:22,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:03:22,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:03:22,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:03:22,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:03:22,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:03:22,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:03:22,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:03:22,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:03:22,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:03:22,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:03:22,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:03:22,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:03:22,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:03:22,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:03:22,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:03:22,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:03:22,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:03:22,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:03:22,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:03:22,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:03:22,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:03:22,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:03:22,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:03:22,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:03:22,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:03:22,196 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:03:22,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:03:22,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:03:22,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:03:22,212 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:03:22,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:03:22,212 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:22,212 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:03:22,212 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:03:22,213 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:03:22,214 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:22,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:03:22,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:03:22,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:03:22,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:03:22,214 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:03:22,215 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:03:22,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:03:22,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:03:22,215 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:03:22,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:03:22,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:03:22,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:03:22,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:03:22,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:03:22,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:03:22,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:03:22,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:03:22,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:03:22,398 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:03:22,399 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:03:22,467 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_6lw9xB/tmp/39fc5e9fbed343b493275a80e06eeb26/FLAG3bb98cbc0 [2020-07-01 11:03:22,814 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:03:22,815 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:03:22,821 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_6lw9xB/tmp/39fc5e9fbed343b493275a80e06eeb26/FLAG3bb98cbc0 [2020-07-01 11:03:23,230 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_6lw9xB/tmp/39fc5e9fbed343b493275a80e06eeb26 [2020-07-01 11:03:23,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:03:23,243 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:03:23,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:23,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:03:23,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:03:23,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b82c411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23, skipping insertion in model container [2020-07-01 11:03:23,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:03:23,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:03:23,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:23,494 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:03:23,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:03:23,524 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:03:23,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23 WrapperNode [2020-07-01 11:03:23,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:03:23,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:23,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:03:23,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:03:23,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:03:23,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:03:23,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:03:23,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:03:23,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:03:23,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:03:23,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:03:23,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:03:23,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:03:23,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:03:23,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:03:23,791 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:03:23,791 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:03:23,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23 BoogieIcfgContainer [2020-07-01 11:03:23,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:03:23,795 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:03:23,796 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:03:23,798 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:03:23,798 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (1/1) ... [2020-07-01 11:03:23,811 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 12 edges [2020-07-01 11:03:23,812 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:03:23,813 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:03:23,813 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:03:23,813 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:03:23,815 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:03:23,816 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:03:23,816 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:03:23,830 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:03:23,844 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:03:23,849 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,850 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:23,860 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:03:23,862 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:03:23,863 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,864 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:23,870 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:03:23,870 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:23,870 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:03:23,870 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:03:23,871 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:03:23,871 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:03:23,871 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:03:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:23 BasicIcfg [2020-07-01 11:03:23,872 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:03:23,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:03:23,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:03:23,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:03:23,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:03:23" (1/4) ... [2020-07-01 11:03:23,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:23, skipping insertion in model container [2020-07-01 11:03:23,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (2/4) ... [2020-07-01 11:03:23,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:03:23, skipping insertion in model container [2020-07-01 11:03:23,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (3/4) ... [2020-07-01 11:03:23,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:23, skipping insertion in model container [2020-07-01 11:03:23,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:23" (4/4) ... [2020-07-01 11:03:23,881 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:23,891 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:03:23,899 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:03:23,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:03:23,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:03:23,937 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:03:23,937 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:23,938 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:23,938 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:23,938 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:03:23,938 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:23,938 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:03:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:03:23,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:03:23,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:03:24,015 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:03:24,015 INFO L268 CegarLoopResult]: For program point L25-1(lines 20 29) no Hoare annotation was computed. [2020-07-01 11:03:24,016 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 24) the Hoare annotation is: true [2020-07-01 11:03:24,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:24 BasicIcfg [2020-07-01 11:03:24,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:03:24,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:03:24,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:03:24,028 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:03:24,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:03:23" (1/5) ... [2020-07-01 11:03:24,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757f1030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:03:23" (2/5) ... [2020-07-01 11:03:24,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757f1030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:03:23" (3/5) ... [2020-07-01 11:03:24,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757f1030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:03:23" (4/5) ... [2020-07-01 11:03:24,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757f1030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:24, skipping insertion in model container [2020-07-01 11:03:24,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:03:24,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:03:24" (5/5) ... [2020-07-01 11:03:24,034 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:03:24,060 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:03:24,060 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:03:24,060 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:03:24,061 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:03:24,061 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:03:24,061 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:03:24,061 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:03:24,061 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:03:24,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:03:24,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:03:24,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:24,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:24,086 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:24,086 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:24,087 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:03:24,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:03:24,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:03:24,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:24,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:24,088 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:03:24,088 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:24,093 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [54] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~i~0_12) (= 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 5#L21-2true [2020-07-01 11:03:24,093 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true [41] L21-2-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_8 (+ v_ULTIMATE.start_main_~z~0_9 1)) (= v_ULTIMATE.start_main_~i~0_10 (+ v_ULTIMATE.start_main_~i~0_11 (- 1))) (< 0 v_ULTIMATE.start_main_~i~0_11)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0] 5#L21-2true [2020-07-01 11:03:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,099 INFO L82 PathProgramCache]: Analyzing trace with hash 85, now seen corresponding path program 1 times [2020-07-01 11:03:24,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081514592] [2020-07-01 11:03:24,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,184 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,186 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2020-07-01 11:03:24,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105956142] [2020-07-01 11:03:24,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,198 INFO L82 PathProgramCache]: Analyzing trace with hash 2676, now seen corresponding path program 1 times [2020-07-01 11:03:24,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401210987] [2020-07-01 11:03:24,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:24,211 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:24,253 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:24,254 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:24,254 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:24,254 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:24,254 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:24,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:24,255 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:24,255 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:03:24,255 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:24,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:24,275 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 11:03:24,285 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 11:03:24,294 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 11:03:24,304 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 11:03:24,387 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:24,388 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 11:03:24,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,404 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,404 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,442 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:24,442 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:24,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:24,475 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 11:03:24,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:24,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:24,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:03:24,549 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:24,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:24,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:24,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:24,550 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:03:24,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:24,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:24,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:24,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:03:24,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:24,551 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:24,553 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 11:03:24,561 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 11:03:24,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:03:24,573 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 11:03:24,644 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:24,650 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 11:03:24,655 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 11:03:24,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:24,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:24,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:24,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:24,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:24,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:24,672 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 11:03:24,704 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 11:03:24,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:24,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:24,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:24,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:24,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:24,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:24,716 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 11:03:24,748 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 11:03:24,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:24,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:24,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:24,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:24,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:24,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:24,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:24,756 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:03:24,761 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:03:24,761 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:03:24,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:03:24,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:03:24,766 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:03:24,766 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 11:03:24,800 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:03:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:24,834 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:03:24,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:24,846 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:03:24,846 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:24,847 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 11:03:24,859 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:03:24,864 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 1 loop predicates [2020-07-01 11:03:24,865 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 2 states. [2020-07-01 11:03:24,899 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 2 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:03:24,900 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 11:03:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:03:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:03:24,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 11:03:24,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:24,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:03:24,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:24,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:03:24,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:24,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:03:24,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:24,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 7 transitions. [2020-07-01 11:03:24,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:03:24,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:03:24,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-07-01 11:03:24,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:03:24,920 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:03:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-07-01 11:03:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-07-01 11:03:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:03:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-07-01 11:03:24,949 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-07-01 11:03:24,949 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-07-01 11:03:24,949 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:03:24,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-07-01 11:03:24,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:03:24,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:03:24,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:03:24,950 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:03:24,951 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:03:24,951 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY [54] ULTIMATE.startENTRY-->L21-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~i~0_12) (= 0 v_ULTIMATE.start_main_~z~0_10) (< 0 v_ULTIMATE.start_main_~y~0_10) (< 0 v_ULTIMATE.start_main_~x~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 38#L21-2 [48] L21-2-->L25-1: Formula: (>= 0 v_ULTIMATE.start_main_~i~0_9) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 39#L25-1 [2020-07-01 11:03:24,951 INFO L796 eck$LassoCheckResult]: Loop: 39#L25-1 [38] L25-1-->L25-1: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~y~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~z~0] 39#L25-1 [2020-07-01 11:03:24,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2683, now seen corresponding path program 1 times [2020-07-01 11:03:24,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939776696] [2020-07-01 11:03:24,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:24,991 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 11:03:24,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939776696] [2020-07-01 11:03:24,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:03:24,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 11:03:24,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148005850] [2020-07-01 11:03:24,996 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:03:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:24,997 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-07-01 11:03:24,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:03:24,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523100537] [2020-07-01 11:03:24,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:03:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:03:25,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:03:25,023 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:25,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:25,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:25,023 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:25,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:03:25,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:25,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:25,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:25,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:03:25,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:25,024 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:25,026 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 11:03:25,030 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 11:03:25,038 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 11:03:25,041 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 11:03:25,117 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:25,117 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 11:03:25,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,130 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,130 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:03:25,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,167 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:03:25,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:25,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,228 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,229 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=0} Honda state: {ULTIMATE.start_main_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~z~0=0}, {ULTIMATE.start_main_~z~0=-1}, {ULTIMATE.start_main_~z~0=0}] Lambdas: [0, 1, 10] Nus: [0, 1] 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 11:03:25,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:03:25,267 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:03:25,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:03:25,301 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:03:25,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:03:25,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:03:25,519 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:03:25,521 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:03:25,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:03:25,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:03:25,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:03:25,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:03:25,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:25,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:03:25,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:03:25,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:03:25,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:03:25,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:03:25,524 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 11:03:25,534 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 11:03:25,540 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 11:03:25,544 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 11:03:25,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:03:25,603 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:25,607 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 11:03:25,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:25,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:25,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:25,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:25,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:25,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:25,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:25,651 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 11:03:25,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:25,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:25,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:25,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:25,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:25,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:25,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:25,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:25,693 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 11:03:25,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:25,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:25,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:25,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:25,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:03:25,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:03:25,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:03:25,746 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 11:03:25,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:03:25,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:03:25,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:03:25,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:03:25,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:03:25,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:03:25,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:03:25,753 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:03:25,759 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:03:25,759 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:03:25,764 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:03:25,764 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:03:25,764 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:03:25,764 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:03:25,794 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:03:25,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:03:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:25,822 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:03:25,823 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:03:25,833 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:03:25,834 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:03:25,834 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 11:03:25,834 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:03:25,835 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 1 loop predicates [2020-07-01 11:03:25,835 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-01 11:03:25,845 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-07-01 11:03:25,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 11:03:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:03:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 11:03:25,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:03:25,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:25,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:03:25,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:25,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:03:25,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:03:25,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-07-01 11:03:25,849 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:03:25,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-07-01 11:03:25,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:03:25,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:03:25,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:03:25,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:03:25,850 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:25,850 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:25,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:03:25,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 11:03:25,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 11:03:25,854 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-07-01 11:03:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:03:25,857 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 11:03:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:03:25,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 11:03:25,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:03:25,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 11:03:25,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:03:25,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:03:25,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:03:25,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:03:25,859 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:25,859 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:25,860 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:03:25,860 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:03:25,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:03:25,860 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:03:25,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:03:25,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:03:25 BasicIcfg [2020-07-01 11:03:25,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:03:25,868 INFO L168 Benchmark]: Toolchain (without parser) took 2625.04 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 560.5 MB in the beginning and 423.1 MB in the end (delta: 137.4 MB). Peak memory consumption was 161.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,869 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:03:25,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.36 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 560.5 MB in the beginning and 636.5 MB in the end (delta: -76.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 673.2 MB. Free memory was 636.5 MB in the beginning and 635.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,871 INFO L168 Benchmark]: Boogie Preprocessor took 19.17 ms. Allocated memory is still 673.2 MB. Free memory was 635.2 MB in the beginning and 633.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,871 INFO L168 Benchmark]: RCFGBuilder took 217.32 ms. Allocated memory is still 673.2 MB. Free memory was 633.8 MB in the beginning and 619.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,872 INFO L168 Benchmark]: BlockEncodingV2 took 76.60 ms. Allocated memory is still 673.2 MB. Free memory was 618.1 MB in the beginning and 612.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,872 INFO L168 Benchmark]: TraceAbstraction took 151.36 ms. Allocated memory is still 673.2 MB. Free memory was 612.7 MB in the beginning and 604.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,873 INFO L168 Benchmark]: BuchiAutomizer took 1841.24 ms. Allocated memory is still 673.2 MB. Free memory was 603.2 MB in the beginning and 423.1 MB in the end (delta: 180.2 MB). Peak memory consumption was 180.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:03:25,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 584.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.36 ms. Allocated memory was 649.6 MB in the beginning and 673.2 MB in the end (delta: 23.6 MB). Free memory was 560.5 MB in the beginning and 636.5 MB in the end (delta: -76.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 673.2 MB. Free memory was 636.5 MB in the beginning and 635.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.17 ms. Allocated memory is still 673.2 MB. Free memory was 635.2 MB in the beginning and 633.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 217.32 ms. Allocated memory is still 673.2 MB. Free memory was 633.8 MB in the beginning and 619.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 76.60 ms. Allocated memory is still 673.2 MB. Free memory was 618.1 MB in the beginning and 612.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.36 ms. Allocated memory is still 673.2 MB. Free memory was 612.7 MB in the beginning and 604.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1841.24 ms. Allocated memory is still 673.2 MB. Free memory was 603.2 MB in the beginning and 423.1 MB in the end (delta: 180.2 MB). Peak memory consumption was 180.2 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: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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 (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + y and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:03:19.932 ----------------------------------------------- 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_6lw9xB/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:03:26.513 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check