/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 11:53:51,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:53:51,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:53:51,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:53:51,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:53:51,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:53:51,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:53:51,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:53:51,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:53:51,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:53:51,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:53:51,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:53:51,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:53:51,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:53:51,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:53:51,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:53:51,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:53:51,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:53:51,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:53:51,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:53:51,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:53:51,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:53:51,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:53:51,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:53:51,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:53:51,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:53:51,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:53:51,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:53:51,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:53:51,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:53:51,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:53:51,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:53:51,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:53:51,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:53:51,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:53:51,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:53:51,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:53:51,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:53:51,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:53:51,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:53:51,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:53:51,235 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:53:51,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:53:51,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:53:51,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:53:51,252 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:53:51,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:53:51,252 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:53:51,252 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:53:51,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:53:51,252 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:53:51,253 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:51,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:53:51,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:53:51,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:53:51,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:53:51,254 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:53:51,255 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:53:51,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:53:51,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:53:51,255 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:53:51,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:53:51,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:53:51,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:53:51,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:53:51,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:53:51,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:53:51,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:53:51,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:53:51,440 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:53:51,441 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:53:51,441 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:53:51,504 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_sOXofR/tmp/befe4c47ed974e7481af287e575160b0/FLAGde3912e4f [2020-07-01 11:53:51,828 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:53:51,829 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:53:51,835 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_sOXofR/tmp/befe4c47ed974e7481af287e575160b0/FLAGde3912e4f [2020-07-01 11:53:52,234 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_sOXofR/tmp/befe4c47ed974e7481af287e575160b0 [2020-07-01 11:53:52,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:53:52,247 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:53:52,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:53:52,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:53:52,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:53:52,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641b0539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52, skipping insertion in model container [2020-07-01 11:53:52,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:53:52,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:53:52,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:53:52,507 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:53:52,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:53:52,537 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:53:52,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52 WrapperNode [2020-07-01 11:53:52,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:53:52,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:53:52,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:53:52,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:53:52,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:53:52,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:53:52,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:53:52,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:53:52,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:53:52,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:53:52,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:53:52,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:53:52,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (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 11:53:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-07-01 11:53:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-07-01 11:53:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:53:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:53:52,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:53:52,833 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:53:52,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:53:52 BoogieIcfgContainer [2020-07-01 11:53:52,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:53:52,837 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:53:52,837 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:53:52,839 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:53:52,840 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:53:52" (1/1) ... [2020-07-01 11:53:52,854 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 19 edges [2020-07-01 11:53:52,856 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:53:52,857 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:53:52,857 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:53:52,857 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:53:52,859 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:53:52,860 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:53:52,860 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:53:52,875 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:53:52,889 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:53:52,893 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:53:52,895 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:53:52,905 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:53:52,907 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states [2020-07-01 11:53:52,908 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:53:52,909 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:53:52,911 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:53:52,911 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:53:52,912 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:53:52,912 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:53:52,912 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:53:52,913 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:53:52,913 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 12 edges [2020-07-01 11:53:52,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:53:52 BasicIcfg [2020-07-01 11:53:52,914 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:53:52,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:53:52,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:53:52,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:53:52,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:53:52" (1/4) ... [2020-07-01 11:53:52,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b2e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:53:52, skipping insertion in model container [2020-07-01 11:53:52,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (2/4) ... [2020-07-01 11:53:52,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b2e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:53:52, skipping insertion in model container [2020-07-01 11:53:52,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:53:52" (3/4) ... [2020-07-01 11:53:52,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b2e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:53:52, skipping insertion in model container [2020-07-01 11:53:52,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:53:52" (4/4) ... [2020-07-01 11:53:52,922 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:53:52,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:53:52,939 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:53:52,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:53:52,981 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:53:52,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:53:52,981 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:53:52,981 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:53:52,982 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:53:52,982 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:53:52,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:53:52,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:53:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-01 11:53:53,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:53:53,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-07-01 11:53:53,072 INFO L271 CegarLoopResult]: At program point recENTRY(lines 4 14) the Hoare annotation is: true [2020-07-01 11:53:53,072 INFO L268 CegarLoopResult]: For program point recFINAL(lines 4 14) no Hoare annotation was computed. [2020-07-01 11:53:53,073 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-07-01 11:53:53,073 INFO L268 CegarLoopResult]: For program point recEXIT(lines 4 14) no Hoare annotation was computed. [2020-07-01 11:53:53,073 INFO L271 CegarLoopResult]: At program point L10-2(lines 10 11) the Hoare annotation is: true [2020-07-01 11:53:53,073 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-07-01 11:53:53,073 INFO L268 CegarLoopResult]: For program point L5(lines 5 13) no Hoare annotation was computed. [2020-07-01 11:53:53,074 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:53:53,074 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-01 11:53:53,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:53:53 BasicIcfg [2020-07-01 11:53:53,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:53:53,083 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:53:53,083 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:53:53,087 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:53:53,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:53:53,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:53:52" (1/5) ... [2020-07-01 11:53:53,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86cc6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:53:53, skipping insertion in model container [2020-07-01 11:53:53,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:53:53,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:53:52" (2/5) ... [2020-07-01 11:53:53,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86cc6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:53:53, skipping insertion in model container [2020-07-01 11:53:53,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:53:53,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:53:52" (3/5) ... [2020-07-01 11:53:53,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86cc6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:53:53, skipping insertion in model container [2020-07-01 11:53:53,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:53:53,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:53:52" (4/5) ... [2020-07-01 11:53:53,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86cc6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:53:53, skipping insertion in model container [2020-07-01 11:53:53,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:53:53,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:53:53" (5/5) ... [2020-07-01 11:53:53,092 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:53:53,121 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:53:53,121 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:53:53,121 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:53:53,121 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:53:53,122 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:53:53,122 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:53:53,122 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:53:53,122 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:53:53,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 11:53:53,143 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:53:53,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:53:53,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:53:53,151 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:53:53,151 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:53:53,151 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:53:53,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 11:53:53,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:53:53,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:53:53,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:53:53,153 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:53:53,153 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:53:53,158 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 11#L20true [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue [2020-07-01 11:53:53,158 INFO L796 eck$LassoCheckResult]: Loop: 3#recENTRYtrue [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 10#L5true [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 5#L8true [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 3#recENTRYtrue [2020-07-01 11:53:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2958, now seen corresponding path program 1 times [2020-07-01 11:53:53,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:53,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872526771] [2020-07-01 11:53:53,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:53,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash 67223, now seen corresponding path program 1 times [2020-07-01 11:53:53,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:53,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893649078] [2020-07-01 11:53:53,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:53,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:53,263 INFO L82 PathProgramCache]: Analyzing trace with hash 88159210, now seen corresponding path program 1 times [2020-07-01 11:53:53,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:53,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838530238] [2020-07-01 11:53:53,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:53,276 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:53,343 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:53,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:53,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:53,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:53,344 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:53:53,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:53,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:53,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:53,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:53:53,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:53,345 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:53,361 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 11:53:53,369 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 11:53:53,372 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 11:53:53,376 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 11:53:53,379 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 11:53:53,382 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 11:53:53,393 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 11:53:53,461 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:53,462 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 11:53:53,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:53,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=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 11:53:53,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,520 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:53,520 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=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 11:53:53,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:53,558 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:53,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:53,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:53,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:53,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:53,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:53,664 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:53,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:53:53,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:53,737 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:53:53,739 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:53,739 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:53,739 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:53,740 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:53,740 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:53:53,740 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:53,740 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:53,740 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:53,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:53:53,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:53,741 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:53,742 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 11:53:53,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:53:53,750 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 11:53:53,754 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 11:53:53,758 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 11:53:53,766 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 11:53:53,769 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 11:53:53,818 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:53,824 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:53:53,828 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 11:53:53,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:53,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:53,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:53,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:53,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:53,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:53,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:53,838 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:53,872 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 11:53:53,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:53,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:53,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:53,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:53,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:53,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:53,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:53,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:53,912 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 11:53:53,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:53,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:53,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:53,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:53,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:53,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:53,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:53,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:53,955 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 11:53:53,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:53,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:53,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:53,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:53,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:53,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:53,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:53,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:53,993 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 11:53:53,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:53,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:53,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:53,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:53,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:53,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:53,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:54,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:53:54,004 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:53:54,005 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:54,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:53:54,009 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:53:54,009 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:53:54,010 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [] [2020-07-01 11:53:54,043 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:53:54,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:54,085 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:53:54,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:53:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:54,116 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:53:54,117 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:53:54,142 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 11:53:54,164 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:53:54,170 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 11:53:54,171 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states. Second operand 4 states. [2020-07-01 11:53:54,287 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states.. Second operand 4 states. Result 64 states and 96 transitions. Complement of second has 24 states. [2020-07-01 11:53:54,288 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 11:53:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:53:54,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions. [2020-07-01 11:53:54,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:53:54,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:54,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:53:54,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:54,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:53:54,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:54,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 96 transitions. [2020-07-01 11:53:54,313 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 [2020-07-01 11:53:54,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 39 states and 65 transitions. [2020-07-01 11:53:54,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-07-01 11:53:54,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-07-01 11:53:54,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 65 transitions. [2020-07-01 11:53:54,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:53:54,326 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 65 transitions. [2020-07-01 11:53:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 65 transitions. [2020-07-01 11:53:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2020-07-01 11:53:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-01 11:53:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2020-07-01 11:53:54,365 INFO L711 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2020-07-01 11:53:54,365 INFO L591 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2020-07-01 11:53:54,365 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:53:54,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 49 transitions. [2020-07-01 11:53:54,367 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 [2020-07-01 11:53:54,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:53:54,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:53:54,368 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:53:54,368 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:53:54,368 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 144#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 157#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 155#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 139#L8 [2020-07-01 11:53:54,368 INFO L796 eck$LassoCheckResult]: Loop: 139#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 138#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 140#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 139#L8 [2020-07-01 11:53:54,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:54,369 INFO L82 PathProgramCache]: Analyzing trace with hash 2843845, now seen corresponding path program 1 times [2020-07-01 11:53:54,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:54,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680579973] [2020-07-01 11:53:54,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:54,418 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 11:53:54,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680579973] [2020-07-01 11:53:54,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:53:54,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 11:53:54,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907633225] [2020-07-01 11:53:54,424 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:53:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash 75204, now seen corresponding path program 1 times [2020-07-01 11:53:54,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:54,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874505718] [2020-07-01 11:53:54,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:54,433 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:54,474 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:54,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:54,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:54,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:54,475 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:53:54,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:54,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:54,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:54,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:53:54,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:54,476 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:54,477 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 11:53:54,493 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 11:53:54,497 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 11:53:54,500 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 11:53:54,503 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 11:53:54,507 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 11:53:54,568 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:54,569 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:53:54,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:54,572 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:53:54,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:53:54,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:54,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:54,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0, rec_#in~a=0} Honda state: {rec_~a=0, rec_#in~a=0} Generalized eigenvectors: [{rec_~a=0, rec_#in~a=0}, {rec_~a=-1, rec_#in~a=0}, {rec_~a=0, rec_#in~a=-1}] Lambdas: [11, 1, 0] Nus: [0, 1] 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 11:53:54,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:54,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:54,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:54,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~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 11:53:54,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:54,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:54,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:54,907 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:54,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:54,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:54,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:54,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:54,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:54,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:54,980 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:54,980 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:53:55,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:53:55,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:53:55,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:53:55,050 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. cyclomatic complexity: 22 Second operand 5 states. [2020-07-01 11:53:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:53:55,092 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2020-07-01 11:53:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:53:55,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 63 transitions. [2020-07-01 11:53:55,097 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 9 [2020-07-01 11:53:55,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 60 transitions. [2020-07-01 11:53:55,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-07-01 11:53:55,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-07-01 11:53:55,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 60 transitions. [2020-07-01 11:53:55,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:53:55,101 INFO L688 BuchiCegarLoop]: Abstraction has 40 states and 60 transitions. [2020-07-01 11:53:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 60 transitions. [2020-07-01 11:53:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2020-07-01 11:53:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-01 11:53:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. [2020-07-01 11:53:55,108 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 54 transitions. [2020-07-01 11:53:55,108 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 54 transitions. [2020-07-01 11:53:55,108 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:53:55,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 54 transitions. [2020-07-01 11:53:55,110 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 8 [2020-07-01 11:53:55,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:53:55,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:53:55,110 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2020-07-01 11:53:55,110 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:53:55,111 INFO L794 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 225#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 224#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 226#L5 [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 232#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 235#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 244#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 230#L8 [2020-07-01 11:53:55,111 INFO L796 eck$LassoCheckResult]: Loop: 230#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 234#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 246#L5 [60] L5-->L8: Formula: (> 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 230#L8 [2020-07-01 11:53:55,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:55,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1178343903, now seen corresponding path program 1 times [2020-07-01 11:53:55,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:55,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404388394] [2020-07-01 11:53:55,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:53:55,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404388394] [2020-07-01 11:53:55,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:53:55,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 11:53:55,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869056137] [2020-07-01 11:53:55,141 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:53:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash 75204, now seen corresponding path program 2 times [2020-07-01 11:53:55,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:55,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874750344] [2020-07-01 11:53:55,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:55,187 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:55,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:55,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:55,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:55,188 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:53:55,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,188 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:55,188 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:55,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:53:55,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:55,188 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:55,190 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 11:53:55,193 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 11:53:55,195 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 11:53:55,204 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 11:53:55,211 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 11:53:55,213 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 11:53:55,256 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:55,257 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:53:55,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=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 11:53:55,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,302 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=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 11:53:55,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,349 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:53:55,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,550 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,550 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=-6, rec_#in~a=-6} Honda state: {rec_~a=-6, rec_#in~a=-6} Generalized eigenvectors: [{rec_~a=0, rec_#in~a=0}, {rec_~a=0, rec_#in~a=0}, {rec_~a=-1, rec_#in~a=-1}] Lambdas: [15, 7, 1] Nus: [0, 0] 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 11:53:55,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,623 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:53:55,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:53:55,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:53:55,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:53:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:53:55,688 INFO L87 Difference]: Start difference. First operand 36 states and 54 transitions. cyclomatic complexity: 25 Second operand 5 states. [2020-07-01 11:53:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:53:55,736 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2020-07-01 11:53:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:53:55,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2020-07-01 11:53:55,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:53:55,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2020-07-01 11:53:55,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-07-01 11:53:55,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-07-01 11:53:55,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2020-07-01 11:53:55,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:53:55,741 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-07-01 11:53:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2020-07-01 11:53:55,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-07-01 11:53:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-01 11:53:55,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-07-01 11:53:55,743 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-07-01 11:53:55,743 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-07-01 11:53:55,743 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:53:55,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-07-01 11:53:55,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:53:55,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:53:55,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:53:55,745 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:53:55,745 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:53:55,746 INFO L794 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRY [63] ULTIMATE.startENTRY-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_8) InVars {} OutVars{ULTIMATE.start_main_~res~1=v_ULTIMATE.start_main_~res~1_3, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~res~1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~ret3] 291#L20 [44] L20-->recENTRY: Formula: (= |v_rec_#in~aInParam_2| v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{rec_#in~a=|v_rec_#in~aInParam_2|} AuxVars[] AssignedVars[rec_#in~a]< 290#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 292#L5 [59] L5-->L8: Formula: (< 0 v_rec_~a_3) InVars {rec_~a=v_rec_~a_3} OutVars{rec_~a=v_rec_~a_3} AuxVars[] AssignedVars[] 294#L8 [46] L8-->recENTRY: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a]< 293#recENTRY [37] recENTRY-->L5: Formula: (= v_rec_~a_1 |v_rec_#in~a_1|) InVars {rec_#in~a=|v_rec_#in~a_1|} OutVars{rec_~a=v_rec_~a_1, rec_#in~a=|v_rec_#in~a_1|} AuxVars[] AssignedVars[rec_~a] 296#L5 [41] L5-->recFINAL: Formula: (and (= 0 v_rec_~a_2) (= |v_rec_#res_1| 0)) InVars {rec_~a=v_rec_~a_2} OutVars{rec_~a=v_rec_~a_2, rec_#res=|v_rec_#res_1|} AuxVars[] AssignedVars[rec_#res] 304#recFINAL [52] recFINAL-->recEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 302#recEXIT >[55] recEXIT-->L8-1: AOR: Formula: (= |v_rec_#t~ret0_4| |v_rec_#resOutParam_1|) InVars {rec_#res=|v_rec_#resOutParam_1|} OutVars{rec_#t~ret0=|v_rec_#t~ret0_4|} AuxVars[] AssignedVars[rec_#t~ret0] LVA: Formula: (= |v_rec_#in~aInParam_1| (+ v_rec_~a_5 (- 1))) InVars {rec_~a=v_rec_~a_5} OutVars{rec_#in~a=|v_rec_#in~aInParam_1|} AuxVars[] AssignedVars[rec_#in~a] 303#L8-1 [50] L8-1-->L10-2: Formula: (and (= v_rec_~res~0_2 |v_rec_#t~ret0_3|) (= v_rec_~rescopy~0_1 v_rec_~res~0_2)) InVars {rec_#t~ret0=|v_rec_#t~ret0_3|} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_1, rec_#t~ret0=|v_rec_#t~ret0_2|, rec_~res~0=v_rec_~res~0_2} AuxVars[] AssignedVars[rec_#t~ret0, rec_~rescopy~0, rec_~res~0] 299#L10-2 [2020-07-01 11:53:55,746 INFO L796 eck$LassoCheckResult]: Loop: 299#L10-2 [49] L10-2-->L10-2: Formula: (and (< 0 v_rec_~rescopy~0_4) (= (+ v_rec_~rescopy~0_3 1) v_rec_~rescopy~0_4)) InVars {rec_~rescopy~0=v_rec_~rescopy~0_4} OutVars{rec_~rescopy~0=v_rec_~rescopy~0_3, rec_#t~post1=|v_rec_#t~post1_1|} AuxVars[] AssignedVars[rec_~rescopy~0, rec_#t~post1] 299#L10-2 [2020-07-01 11:53:55,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:55,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1276018367, now seen corresponding path program 1 times [2020-07-01 11:53:55,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:55,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796243144] [2020-07-01 11:53:55,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,760 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash 80, now seen corresponding path program 1 times [2020-07-01 11:53:55,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:55,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609715172] [2020-07-01 11:53:55,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:53:55,766 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:53:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:55,766 INFO L82 PathProgramCache]: Analyzing trace with hash -901863664, now seen corresponding path program 1 times [2020-07-01 11:53:55,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:53:55,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322485112] [2020-07-01 11:53:55,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:53:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-01 11:53:55,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322485112] [2020-07-01 11:53:55,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:53:55,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 11:53:55,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814741840] [2020-07-01 11:53:55,827 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:55,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:55,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:55,828 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:55,828 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:53:55,828 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:55,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:55,829 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:53:55,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:55,829 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:55,830 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 11:53:55,840 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 11:53:55,863 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:55,863 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:53:55,871 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:53:55,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:53:55,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:53:55,941 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:53:55,943 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:53:55,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:53:55,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:53:55,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:53:55,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:53:55,944 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:55,944 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:53:55,944 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:53:55,944 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:53:55,944 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:53:55,944 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:53:55,945 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 11:53:55,952 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 11:53:55,971 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:53:55,971 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:55,973 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 11:53:55,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:53:55,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:53:55,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:53:55,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:53:55,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:53:55,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:53:55,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:53:55,980 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:53:55,984 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:53:55,984 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:53:55,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:53:55,986 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:53:55,986 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:53:55,986 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2020-07-01 11:53:56,016 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:53:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:53:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:56,044 INFO L264 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:53:56,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:53:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:53:56,070 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:53:56,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:53:56,071 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 11:53:56,089 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:53:56,089 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-07-01 11:53:56,089 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-07-01 11:53:56,128 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 27 transitions. Complement of second has 7 states. [2020-07-01 11:53:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:53:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:53:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-07-01 11:53:56,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 1 letters. [2020-07-01 11:53:56,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:56,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 1 letters. [2020-07-01 11:53:56,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:56,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 2 letters. [2020-07-01 11:53:56,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:53:56,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-07-01 11:53:56,132 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:53:56,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-07-01 11:53:56,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:53:56,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:53:56,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:53:56,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:53:56,133 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:53:56,133 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:53:56,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:53:56,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:53:56,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:53:56,134 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-07-01 11:53:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:53:56,134 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 11:53:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:53:56,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 11:53:56,136 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:53:56,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 11:53:56,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:53:56,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:53:56,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:53:56,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:53:56,136 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:53:56,136 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:53:56,137 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:53:56,137 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:53:56,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:53:56,137 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:53:56,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:53:56,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:53:56 BasicIcfg [2020-07-01 11:53:56,143 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:53:56,145 INFO L168 Benchmark]: Toolchain (without parser) took 3897.58 ms. Allocated memory was 649.6 MB in the beginning and 751.8 MB in the end (delta: 102.2 MB). Free memory was 562.8 MB in the beginning and 612.8 MB in the end (delta: -50.0 MB). Peak memory consumption was 52.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,146 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:53:56,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.19 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 562.8 MB in the beginning and 641.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.78 ms. Allocated memory is still 678.4 MB. Free memory was 641.0 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,147 INFO L168 Benchmark]: Boogie Preprocessor took 20.18 ms. Allocated memory is still 678.4 MB. Free memory was 640.0 MB in the beginning and 638.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,148 INFO L168 Benchmark]: RCFGBuilder took 243.21 ms. Allocated memory is still 678.4 MB. Free memory was 638.9 MB in the beginning and 622.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,148 INFO L168 Benchmark]: BlockEncodingV2 took 76.80 ms. Allocated memory is still 678.4 MB. Free memory was 622.1 MB in the beginning and 616.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,149 INFO L168 Benchmark]: TraceAbstraction took 168.12 ms. Allocated memory is still 678.4 MB. Free memory was 615.6 MB in the beginning and 605.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,149 INFO L168 Benchmark]: BuchiAutomizer took 3059.64 ms. Allocated memory was 678.4 MB in the beginning and 751.8 MB in the end (delta: 73.4 MB). Free memory was 605.8 MB in the beginning and 612.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:53:56,153 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 19 edges - StatisticsResult: Encoded RCFG 9 locations, 12 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 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.19 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 562.8 MB in the beginning and 641.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.78 ms. Allocated memory is still 678.4 MB. Free memory was 641.0 MB in the beginning and 640.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.18 ms. Allocated memory is still 678.4 MB. Free memory was 640.0 MB in the beginning and 638.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 243.21 ms. Allocated memory is still 678.4 MB. Free memory was 638.9 MB in the beginning and 622.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 76.80 ms. Allocated memory is still 678.4 MB. Free memory was 622.1 MB in the beginning and 616.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 168.12 ms. Allocated memory is still 678.4 MB. Free memory was 615.6 MB in the beginning and 605.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3059.64 ms. Allocated memory was 678.4 MB in the beginning and 751.8 MB in the end (delta: 73.4 MB). Free memory was 605.8 MB in the beginning and 612.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 9 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=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 4 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function \old(a) and consists of 6 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 57 SDtfs, 79 SDslu, 67 SDs, 0 SdLazy, 73 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN2 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf92 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:53:48.994 ----------------------------------------------- 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_sOXofR/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:53:56.585 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check