/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:56:51,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:56:51,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:56:51,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:56:51,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:56:51,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:56:51,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:56:51,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:56:51,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:56:51,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:56:51,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:56:51,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:56:51,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:56:51,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:56:51,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:56:51,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:56:51,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:56:51,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:56:51,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:56:51,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:56:51,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:56:51,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:56:51,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:56:51,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:56:51,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:56:51,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:56:51,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:56:51,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:56:51,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:56:51,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:56:51,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:56:51,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:56:51,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:56:51,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:56:51,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:56:51,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:56:51,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:56:51,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:56:51,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:56:51,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:56:51,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:56:51,776 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:56:51,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:56:51,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:56:51,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:56:51,792 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:56:51,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:56:51,792 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:56:51,792 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:56:51,793 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:56:51,793 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:56:51,793 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:56:51,793 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:56:51,793 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:56:51,794 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:56:51,794 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:56:51,794 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:51,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:56:51,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:56:51,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:56:51,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:56:51,795 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:56:51,795 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:56:51,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:56:51,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:56:51,796 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:56:51,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:56:51,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:56:51,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:56:51,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:56:51,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:56:51,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:56:51,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:56:51,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:56:51,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:56:51,981 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:56:51,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:56:52,078 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_FlzGhQ/tmp/fd0482347efd488f8a01bc8055b2618a/FLAG969348ade [2020-07-01 11:56:52,425 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:56:52,426 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:56:52,433 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_FlzGhQ/tmp/fd0482347efd488f8a01bc8055b2618a/FLAG969348ade [2020-07-01 11:56:52,843 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_FlzGhQ/tmp/fd0482347efd488f8a01bc8055b2618a [2020-07-01 11:56:52,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:56:52,856 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:56:52,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:56:52,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:56:52,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:56:52,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:56:52" (1/1) ... [2020-07-01 11:56:52,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a398e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:52, skipping insertion in model container [2020-07-01 11:56:52,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:56:52" (1/1) ... [2020-07-01 11:56:52,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:56:52,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:56:53,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:56:53,108 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:56:53,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:56:53,137 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:56:53,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53 WrapperNode [2020-07-01 11:56:53,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:56:53,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:56:53,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:56:53,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:56:53,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:56:53,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:56:53,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:56:53,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:56:53,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:56:53,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:56:53,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:56:53,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:56:53,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:56:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-01 11:56:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2020-07-01 11:56:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:56:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:56:53,407 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:56:53,407 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 11:56:53,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53 BoogieIcfgContainer [2020-07-01 11:56:53,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:56:53,411 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:56:53,412 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:56:53,414 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:56:53,415 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (1/1) ... [2020-07-01 11:56:53,428 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-07-01 11:56:53,430 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:56:53,431 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:56:53,431 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:56:53,432 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:56:53,433 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:56:53,434 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:56:53,434 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:56:53,450 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:56:53,468 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 11:56:53,472 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:56:53,474 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:56:53,483 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:56:53,485 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 11:56:53,487 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:56:53,487 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:56:53,488 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:56:53,488 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:56:53,489 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 18 edges [2020-07-01 11:56:53,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53 BasicIcfg [2020-07-01 11:56:53,489 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:56:53,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:56:53,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:56:53,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:56:53,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:56:52" (1/4) ... [2020-07-01 11:56:53,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757973a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (2/4) ... [2020-07-01 11:56:53,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757973a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (3/4) ... [2020-07-01 11:56:53,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757973a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53" (4/4) ... [2020-07-01 11:56:53,498 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:56:53,508 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:56:53,515 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:56:53,529 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:56:53,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:56:53,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:56:53,553 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:56:53,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:56:53,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:56:53,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:56:53,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:56:53,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:56:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-01 11:56:53,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:56:53,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-07-01 11:56:53,644 INFO L268 CegarLoopResult]: For program point bsearchEXIT(lines 8 15) no Hoare annotation was computed. [2020-07-01 11:56:53,645 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-01 11:56:53,645 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-01 11:56:53,645 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-07-01 11:56:53,645 INFO L268 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-07-01 11:56:53,646 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-01 11:56:53,646 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-01 11:56:53,646 INFO L271 CegarLoopResult]: At program point bsearchENTRY(lines 8 15) the Hoare annotation is: true [2020-07-01 11:56:53,646 INFO L268 CegarLoopResult]: For program point bsearchFINAL(lines 8 15) no Hoare annotation was computed. [2020-07-01 11:56:53,646 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:56:53,647 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-01 11:56:53,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:53 BasicIcfg [2020-07-01 11:56:53,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:56:53,651 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:56:53,651 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:56:53,655 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:56:53,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:53,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:56:52" (1/5) ... [2020-07-01 11:56:53,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec06eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:53,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:56:53" (2/5) ... [2020-07-01 11:56:53,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec06eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:53,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:56:53" (3/5) ... [2020-07-01 11:56:53,658 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec06eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:53,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:56:53" (4/5) ... [2020-07-01 11:56:53,658 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec06eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:56:53, skipping insertion in model container [2020-07-01 11:56:53,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:56:53,659 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:56:53" (5/5) ... [2020-07-01 11:56:53,660 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:56:53,690 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:56:53,690 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:56:53,690 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:56:53,690 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:56:53,690 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:56:53,691 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:56:53,691 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:56:53,691 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:56:53,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 11:56:53,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:56:53,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:53,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:53,723 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:56:53,724 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:56:53,724 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:56:53,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 11:56:53,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:56:53,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:56:53,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:56:53,726 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:56:53,726 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:56:53,731 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue [36] ULTIMATE.startENTRY-->L21: Formula: (and (= v_ULTIMATE.start_main_~x~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~y~0_2 |v_ULTIMATE.start_main_#t~nondet4_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} AuxVars[|v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~x~0] 6#L21true [35] L21-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_3| v_ULTIMATE.start_main_~y~0_5) (= |v_bsearch_#in~iInParam_3| v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_3|, bsearch_#in~i=|v_bsearch_#in~iInParam_3|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 10#bsearchENTRYtrue [2020-07-01 11:56:53,732 INFO L796 eck$LassoCheckResult]: Loop: 10#bsearchENTRYtrue [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 9#L10true [48] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (> v_bsearch_~j_3 v_bsearch_~i_3) (= 0 (mod .cse0 2)) (= v_bsearch_~mid~0_1 (div .cse0 2)))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 3#L12true [28] L12-->L14: Formula: (= 0 |v_bsearch_#t~nondet0_4|) InVars {bsearch_#t~nondet0=|v_bsearch_#t~nondet0_4|} OutVars{bsearch_#t~nondet0=|v_bsearch_#t~nondet0_3|} AuxVars[] AssignedVars[bsearch_#t~nondet0] 11#L14true [38] L14-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~iInParam_2| (+ v_bsearch_~mid~0_5 1)) (= |v_bsearch_#in~jInParam_2| v_bsearch_~j_5)) InVars {bsearch_~j=v_bsearch_~j_5, bsearch_~mid~0=v_bsearch_~mid~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_2|, bsearch_#in~i=|v_bsearch_#in~iInParam_2|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 10#bsearchENTRYtrue [2020-07-01 11:56:53,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2112, now seen corresponding path program 1 times [2020-07-01 11:56:53,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:53,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350568321] [2020-07-01 11:56:53,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,818 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:53,819 INFO L82 PathProgramCache]: Analyzing trace with hash 2072822, now seen corresponding path program 1 times [2020-07-01 11:56:53,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:53,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055338536] [2020-07-01 11:56:53,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1951625653, now seen corresponding path program 1 times [2020-07-01 11:56:53,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:56:53,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549871861] [2020-07-01 11:56:53,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:56:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:56:53,878 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:56:54,020 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:54,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:54,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:54,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:54,021 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:56:54,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:54,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:54,022 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:56:54,022 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:54,022 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:54,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:56:54,057 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 11:56:54,061 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 11:56:54,067 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 11:56:54,070 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 11:56:54,073 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 11:56:54,077 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 11:56:54,082 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 11:56:54,221 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:54,222 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:56:54,228 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:56:54,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:56:54,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:56:54,539 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:56:54,542 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:56:54,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:56:54,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:56:54,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:56:54,543 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:56:54,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,543 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:56:54,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:56:54,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:56:54,543 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:56:54,544 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:56:54,545 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 11:56:54,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:56:54,564 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 11:56:54,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:56:54,574 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 11:56:54,579 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 11:56:54,582 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 11:56:54,584 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 11:56:54,693 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:56:54,699 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,703 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 11:56:54,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:56:54,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:56:54,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:56:54,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:56:54,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:56:54,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:56:54,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:56:54,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:56:54,729 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:56:54,729 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:56:54,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:56:54,735 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:56:54,736 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:56:54,737 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(bsearch_#in~j, bsearch_#in~i) = 1*bsearch_#in~j - 1*bsearch_#in~i Supporting invariants [] [2020-07-01 11:56:54,770 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:56:54,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:56:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:54,825 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:56:54,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:56:54,849 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:56:54,850 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:56:54,927 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 11:56:54,940 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:56:54,945 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 11:56:54,947 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. [2020-07-01 11:57:00,207 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 82 states and 153 transitions. Complement of second has 16 states. [2020-07-01 11:57:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:57:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:57:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2020-07-01 11:57:00,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 11:57:00,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:00,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 11:57:00,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:00,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 11:57:00,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:00,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 153 transitions. [2020-07-01 11:57:00,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:57:00,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 27 states and 43 transitions. [2020-07-01 11:57:00,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-07-01 11:57:00,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-07-01 11:57:00,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 43 transitions. [2020-07-01 11:57:00,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:57:00,242 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 43 transitions. [2020-07-01 11:57:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 43 transitions. [2020-07-01 11:57:00,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 14. [2020-07-01 11:57:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-01 11:57:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 23 transitions. [2020-07-01 11:57:00,272 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 23 transitions. [2020-07-01 11:57:00,272 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 23 transitions. [2020-07-01 11:57:00,272 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:57:00,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 23 transitions. [2020-07-01 11:57:00,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:57:00,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:57:00,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:57:00,274 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:57:00,274 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:57:00,275 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L21: Formula: (and (= v_ULTIMATE.start_main_~x~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~y~0_2 |v_ULTIMATE.start_main_#t~nondet4_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} AuxVars[|v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~x~0] 151#L21 [35] L21-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_3| v_ULTIMATE.start_main_~y~0_5) (= |v_bsearch_#in~iInParam_3| v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_3|, bsearch_#in~i=|v_bsearch_#in~iInParam_3|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 155#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 163#L10 [47] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (>= .cse0 0) (> v_bsearch_~j_3 v_bsearch_~i_3) (= v_bsearch_~mid~0_1 (div .cse0 2)))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 159#L12 [2020-07-01 11:57:00,275 INFO L796 eck$LassoCheckResult]: Loop: 159#L12 [51] L12-->L13: Formula: (< 0 |v_bsearch_#t~nondet0_2|) InVars {bsearch_#t~nondet0=|v_bsearch_#t~nondet0_2|} OutVars{bsearch_#t~nondet0=|v_bsearch_#t~nondet0_1|} AuxVars[] AssignedVars[bsearch_#t~nondet0] 152#L13 [40] L13-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_1| v_bsearch_~mid~0_4) (= |v_bsearch_#in~iInParam_1| v_bsearch_~i_5)) InVars {bsearch_~mid~0=v_bsearch_~mid~0_4, bsearch_~i=v_bsearch_~i_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_1|, bsearch_#in~i=|v_bsearch_#in~iInParam_1|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 161#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 157#L10 [48] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (> v_bsearch_~j_3 v_bsearch_~i_3) (= 0 (mod .cse0 2)) (= v_bsearch_~mid~0_1 (div .cse0 2)))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 159#L12 [2020-07-01 11:57:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:00,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2030826, now seen corresponding path program 1 times [2020-07-01 11:57:00,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:00,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795949713] [2020-07-01 11:57:00,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,288 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:00,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2482497, now seen corresponding path program 1 times [2020-07-01 11:57:00,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:00,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141781746] [2020-07-01 11:57:00,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,302 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:00,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1388691030, now seen corresponding path program 1 times [2020-07-01 11:57:00,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:00,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11966120] [2020-07-01 11:57:00,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:00,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:00,445 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:00,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:00,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:00,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:00,446 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:57:00,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:00,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:00,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:57:00,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:00,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:00,450 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 11:57:00,454 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 11:57:00,458 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 11:57:00,461 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 11:57:00,484 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 11:57:00,665 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:00,665 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:00,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:00,674 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:00,674 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {bsearch_#t~ret2=0} Honda state: {bsearch_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:00,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:00,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:00,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {bsearch_#t~ret1=0} Honda state: {bsearch_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:00,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:00,747 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:00,747 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {bsearch_#res=0} Honda state: {bsearch_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:00,780 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:00,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:57:00,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:12,912 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:57:12,918 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:12,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:12,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:12,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:12,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:57:12,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:12,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:12,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:12,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:57:12,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:12,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:12,933 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 11:57:12,937 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 11:57:12,940 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 11:57:12,942 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 11:57:12,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:57:13,082 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-01 11:57:13,135 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:13,136 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:57:13,140 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 11:57:13,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:13,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:13,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:13,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:13,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:13,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:13,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:13,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:57:13,178 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 11:57:13,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:13,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:13,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:13,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:13,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:13,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:13,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:13,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 11:57:13,215 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 11:57:13,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:13,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:13,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:13,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:13,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:13,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:13,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:13,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:13,253 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 11:57:13,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:13,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:13,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:13,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:13,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:13,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:13,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:13,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:57:13,273 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:57:13,273 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:13,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:57:13,276 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:57:13,276 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:57:13,276 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(bsearch_~mid~0, bsearch_~i) = 1*bsearch_~mid~0 - 1*bsearch_~i Supporting invariants [] [2020-07-01 11:57:13,306 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:57:13,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:13,330 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:57:13,331 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:13,349 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:57:13,349 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:13,370 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 11:57:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,382 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:57:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,394 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:57:13,394 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:57:13,394 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 11:57:13,394 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 14 states and 23 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-07-01 11:57:13,493 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 14 states and 23 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 154 states and 260 transitions. Complement of second has 82 states. [2020-07-01 11:57:13,493 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 11:57:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:57:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-07-01 11:57:13,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:57:13,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:13,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:57:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:13,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 11:57:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:13,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 260 transitions. [2020-07-01 11:57:13,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2020-07-01 11:57:13,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 76 states and 137 transitions. [2020-07-01 11:57:13,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-07-01 11:57:13,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-07-01 11:57:13,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 137 transitions. [2020-07-01 11:57:13,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:57:13,509 INFO L688 BuchiCegarLoop]: Abstraction has 76 states and 137 transitions. [2020-07-01 11:57:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 137 transitions. [2020-07-01 11:57:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 24. [2020-07-01 11:57:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-01 11:57:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2020-07-01 11:57:13,514 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 46 transitions. [2020-07-01 11:57:13,514 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 46 transitions. [2020-07-01 11:57:13,514 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:57:13,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 46 transitions. [2020-07-01 11:57:13,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-07-01 11:57:13,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:57:13,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:57:13,516 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:57:13,516 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:57:13,516 INFO L794 eck$LassoCheckResult]: Stem: 453#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L21: Formula: (and (= v_ULTIMATE.start_main_~x~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~y~0_2 |v_ULTIMATE.start_main_#t~nondet4_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} AuxVars[|v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~x~0] 451#L21 [35] L21-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_3| v_ULTIMATE.start_main_~y~0_5) (= |v_bsearch_#in~iInParam_3| v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_3|, bsearch_#in~i=|v_bsearch_#in~iInParam_3|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 452#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 466#L10 [49] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (= (+ (div .cse0 2) 1) v_bsearch_~mid~0_1) (< 0 (mod .cse0 2)) (> v_bsearch_~j_3 v_bsearch_~i_3) (< .cse0 0))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 467#L12 [2020-07-01 11:57:13,516 INFO L796 eck$LassoCheckResult]: Loop: 467#L12 [28] L12-->L14: Formula: (= 0 |v_bsearch_#t~nondet0_4|) InVars {bsearch_#t~nondet0=|v_bsearch_#t~nondet0_4|} OutVars{bsearch_#t~nondet0=|v_bsearch_#t~nondet0_3|} AuxVars[] AssignedVars[bsearch_#t~nondet0] 448#L14 [38] L14-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~iInParam_2| (+ v_bsearch_~mid~0_5 1)) (= |v_bsearch_#in~jInParam_2| v_bsearch_~j_5)) InVars {bsearch_~j=v_bsearch_~j_5, bsearch_~mid~0=v_bsearch_~mid~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_2|, bsearch_#in~i=|v_bsearch_#in~iInParam_2|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 457#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 459#L10 [48] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (> v_bsearch_~j_3 v_bsearch_~i_3) (= 0 (mod .cse0 2)) (= v_bsearch_~mid~0_1 (div .cse0 2)))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 467#L12 [2020-07-01 11:57:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash 2030828, now seen corresponding path program 1 times [2020-07-01 11:57:13,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:13,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154900264] [2020-07-01 11:57:13,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:13,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:13,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1795382, now seen corresponding path program 2 times [2020-07-01 11:57:13,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:13,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231647445] [2020-07-01 11:57:13,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,542 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:13,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:13,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1387531103, now seen corresponding path program 1 times [2020-07-01 11:57:13,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:13,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817188254] [2020-07-01 11:57:13,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:13,568 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:13,666 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:13,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:13,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:13,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:13,667 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:57:13,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:57:13,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:13,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:13,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:57:13,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:13,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:13,669 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 11:57:13,672 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 11:57:13,689 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 11:57:13,691 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 11:57:13,693 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 11:57:13,806 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:13,806 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 11:57:13,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:13,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:13,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:57:13,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {bsearch_#t~nondet0=0} Honda state: {bsearch_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 11:57:13,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:57:13,845 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:57:13,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:57:13,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:57:25,965 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 11:57:25,971 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:57:25,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:57:25,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:57:25,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:57:25,972 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:57:25,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:25,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:57:25,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:57:25,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:57:25,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:57:25,972 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:57:25,974 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 11:57:25,994 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 11:57:25,997 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 11:57:25,999 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 11:57:26,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:57:26,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:57:26,120 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:26,125 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 11:57:26,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:57:26,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:57:26,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:57:26,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:57:26,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:57:26,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:57:26,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:57:26,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:57:26,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:57:26,141 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:57:26,146 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:57:26,146 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:57:26,146 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:57:26,146 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(bsearch_~mid~0, bsearch_~j) = -1*bsearch_~mid~0 + 1*bsearch_~j Supporting invariants [] [2020-07-01 11:57:26,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:57:26,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:26,198 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:57:26,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:57:26,210 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:57:26,211 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:57:26,231 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 11:57:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,240 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:57:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,250 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:57:26,250 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:57:26,250 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 11:57:26,250 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 24 states and 46 transitions. cyclomatic complexity: 24 Second operand 5 states. [2020-07-01 11:57:26,307 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 24 states and 46 transitions. cyclomatic complexity: 24. Second operand 5 states. Result 99 states and 184 transitions. Complement of second has 39 states. [2020-07-01 11:57:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:57:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:57:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-07-01 11:57:26,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:57:26,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:26,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:57:26,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:26,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 8 letters. [2020-07-01 11:57:26,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:57:26,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 184 transitions. [2020-07-01 11:57:26,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 42 [2020-07-01 11:57:26,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 51 states and 95 transitions. [2020-07-01 11:57:26,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 11:57:26,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 11:57:26,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 95 transitions. [2020-07-01 11:57:26,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:57:26,317 INFO L688 BuchiCegarLoop]: Abstraction has 51 states and 95 transitions. [2020-07-01 11:57:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 95 transitions. [2020-07-01 11:57:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2020-07-01 11:57:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-01 11:57:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 62 transitions. [2020-07-01 11:57:26,321 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 62 transitions. [2020-07-01 11:57:26,321 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 62 transitions. [2020-07-01 11:57:26,322 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:57:26,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 62 transitions. [2020-07-01 11:57:26,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2020-07-01 11:57:26,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:57:26,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:57:26,323 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 11:57:26,323 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:57:26,324 INFO L794 eck$LassoCheckResult]: Stem: 659#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L21: Formula: (and (= v_ULTIMATE.start_main_~x~0_2 |v_ULTIMATE.start_main_#t~nondet3_4|) (= v_ULTIMATE.start_main_~y~0_2 |v_ULTIMATE.start_main_#t~nondet4_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} AuxVars[|v_ULTIMATE.start_main_#t~nondet4_4|, |v_ULTIMATE.start_main_#t~nondet3_4|] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_~x~0] 653#L21 [35] L21-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_3| v_ULTIMATE.start_main_~y~0_5) (= |v_bsearch_#in~iInParam_3| v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_3|, bsearch_#in~i=|v_bsearch_#in~iInParam_3|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 658#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 678#L10 [49] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (= (+ (div .cse0 2) 1) v_bsearch_~mid~0_1) (< 0 (mod .cse0 2)) (> v_bsearch_~j_3 v_bsearch_~i_3) (< .cse0 0))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 676#L12 [2020-07-01 11:57:26,324 INFO L796 eck$LassoCheckResult]: Loop: 676#L12 [51] L12-->L13: Formula: (< 0 |v_bsearch_#t~nondet0_2|) InVars {bsearch_#t~nondet0=|v_bsearch_#t~nondet0_2|} OutVars{bsearch_#t~nondet0=|v_bsearch_#t~nondet0_1|} AuxVars[] AssignedVars[bsearch_#t~nondet0] 655#L13 [40] L13-->bsearchENTRY: Formula: (and (= |v_bsearch_#in~jInParam_1| v_bsearch_~mid~0_4) (= |v_bsearch_#in~iInParam_1| v_bsearch_~i_5)) InVars {bsearch_~mid~0=v_bsearch_~mid~0_4, bsearch_~i=v_bsearch_~i_5} OutVars{bsearch_#in~j=|v_bsearch_#in~jInParam_1|, bsearch_#in~i=|v_bsearch_#in~iInParam_1|} AuxVars[] AssignedVars[bsearch_#in~j, bsearch_#in~i]< 669#bsearchENTRY [37] bsearchENTRY-->L10: Formula: (and (= v_bsearch_~i_1 |v_bsearch_#in~i_1|) (= v_bsearch_~j_1 |v_bsearch_#in~j_1|)) InVars {bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_#in~i=|v_bsearch_#in~i_1|} OutVars{bsearch_~j=v_bsearch_~j_1, bsearch_#in~i=|v_bsearch_#in~i_1|, bsearch_#in~j=|v_bsearch_#in~j_1|, bsearch_~i=v_bsearch_~i_1} AuxVars[] AssignedVars[bsearch_~i, bsearch_~j] 675#L10 [49] L10-->L12: Formula: (let ((.cse0 (+ v_bsearch_~j_3 v_bsearch_~i_3))) (and (= (+ (div .cse0 2) 1) v_bsearch_~mid~0_1) (< 0 (mod .cse0 2)) (> v_bsearch_~j_3 v_bsearch_~i_3) (< .cse0 0))) InVars {bsearch_~j=v_bsearch_~j_3, bsearch_~i=v_bsearch_~i_3} OutVars{bsearch_~j=v_bsearch_~j_3, bsearch_~mid~0=v_bsearch_~mid~0_1, bsearch_~i=v_bsearch_~i_3} AuxVars[] AssignedVars[bsearch_~mid~0] 676#L12 [2020-07-01 11:57:26,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:26,324 INFO L82 PathProgramCache]: Analyzing trace with hash 2030828, now seen corresponding path program 2 times [2020-07-01 11:57:26,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:26,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547397407] [2020-07-01 11:57:26,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:26,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:26,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2482498, now seen corresponding path program 1 times [2020-07-01 11:57:26,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:26,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693006197] [2020-07-01 11:57:26,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:57:26,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1386843987, now seen corresponding path program 1 times [2020-07-01 11:57:26,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:57:26,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46643853] [2020-07-01 11:57:26,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:57:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:57:26,362 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:57:26,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:57:26 BasicIcfg [2020-07-01 11:57:26,575 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:57:26,577 INFO L168 Benchmark]: Toolchain (without parser) took 33720.60 ms. Allocated memory was 649.6 MB in the beginning and 749.7 MB in the end (delta: 100.1 MB). Free memory was 562.5 MB in the beginning and 439.8 MB in the end (delta: 122.7 MB). Peak memory consumption was 222.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,577 INFO L168 Benchmark]: CDTParser took 0.18 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 11:57:26,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.06 ms. Allocated memory was 649.6 MB in the beginning and 688.4 MB in the end (delta: 38.8 MB). Free memory was 561.4 MB in the beginning and 651.3 MB in the end (delta: -89.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.05 ms. Allocated memory is still 688.4 MB. Free memory was 651.3 MB in the beginning and 650.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,579 INFO L168 Benchmark]: Boogie Preprocessor took 16.44 ms. Allocated memory is still 688.4 MB. Free memory was 650.2 MB in the beginning and 649.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,579 INFO L168 Benchmark]: RCFGBuilder took 223.39 ms. Allocated memory is still 688.4 MB. Free memory was 649.2 MB in the beginning and 631.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,580 INFO L168 Benchmark]: BlockEncodingV2 took 77.88 ms. Allocated memory is still 688.4 MB. Free memory was 631.4 MB in the beginning and 626.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,580 INFO L168 Benchmark]: TraceAbstraction took 160.18 ms. Allocated memory is still 688.4 MB. Free memory was 626.0 MB in the beginning and 615.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,581 INFO L168 Benchmark]: BuchiAutomizer took 32923.86 ms. Allocated memory was 688.4 MB in the beginning and 749.7 MB in the end (delta: 61.3 MB). Free memory was 615.2 MB in the beginning and 439.8 MB in the end (delta: 175.4 MB). Peak memory consumption was 236.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:57:26,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 18 edges - StatisticsResult: Encoded RCFG 11 locations, 18 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.06 ms. Allocated memory was 649.6 MB in the beginning and 688.4 MB in the end (delta: 38.8 MB). Free memory was 561.4 MB in the beginning and 651.3 MB in the end (delta: -89.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.05 ms. Allocated memory is still 688.4 MB. Free memory was 651.3 MB in the beginning and 650.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.44 ms. Allocated memory is still 688.4 MB. Free memory was 650.2 MB in the beginning and 649.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 223.39 ms. Allocated memory is still 688.4 MB. Free memory was 649.2 MB in the beginning and 631.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.88 ms. Allocated memory is still 688.4 MB. Free memory was 631.4 MB in the beginning and 626.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.18 ms. Allocated memory is still 688.4 MB. Free memory was 626.0 MB in the beginning and 615.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 32923.86 ms. Allocated memory was 688.4 MB in the beginning and 749.7 MB in the end (delta: 61.3 MB). Free memory was 615.2 MB in the beginning and 439.8 MB in the end (delta: 175.4 MB). Peak memory consumption was 236.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 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=11occurred 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, 10 PreInvPairs, 10 NumberOfFragments, 4 HoareAnnotationTreeSize, 10 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 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function \old(j) + -1 * \old(i) and consists of 5 locations. One nondeterministic module has affine ranking function mid + -1 * i and consists of 6 locations. One nondeterministic module has affine ranking function -1 * mid + j and consists of 5 locations. The remainder module has 30 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 26.9s. Construction of modules took 5.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 86 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 81 SDslu, 29 SDs, 0 SdLazy, 101 SolverSat, 15 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div377 bol100 ite100 ukn100 eq137 hnf49 smp77 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 24.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\old(j)=0, \result=0, \result=0, \old(i)=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f39276b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17186491=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@388d545c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a9824cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fc78702=0, NULL=0, i=-1, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49c1308=1, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L21] CALL bsearch(x, y) [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; Loop: [L12] COND TRUE __VERIFIER_nondet_int() [L13] CALL bsearch(i,mid) [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:56:49.562 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_FlzGhQ/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:57:27.222 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check