/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:20:20,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:20:20,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:20:20,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:20:20,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:20:20,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:20:20,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:20:20,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:20:20,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:20:20,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:20:20,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:20:20,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:20:20,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:20:20,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:20:20,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:20:20,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:20:20,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:20:20,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:20:20,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:20:20,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:20:20,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:20:20,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:20:20,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:20:20,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:20:20,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:20:20,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:20:20,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:20:20,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:20:20,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:20:20,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:20:20,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:20:20,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:20:20,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:20:20,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:20:20,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:20:20,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:20:20,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:20:20,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:20:20,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:20:20,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:20:20,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:20:20,825 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:20:20,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:20:20,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:20:20,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:20:20,841 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:20:20,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:20:20,841 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:20:20,842 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:20:20,842 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:20:20,842 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:20:20,842 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:20:20,842 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:20:20,842 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:20:20,843 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:20:20,843 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:20:20,843 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:20,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:20:20,843 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:20:20,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:20:20,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:20:20,844 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:20:20,844 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:20:20,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:20:20,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:20:20,844 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:20:20,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:20:20,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:20:20,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:20:20,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:20:20,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:20:21,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:20:21,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:20:21,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:20:21,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:20:21,026 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:20:21,027 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:20:21,091 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_E_WaEU/tmp/b6b3aded29d2458abe9e287c90829754/FLAGdfc4bed05 [2020-07-01 11:20:21,425 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:20:21,426 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:20:21,433 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_E_WaEU/tmp/b6b3aded29d2458abe9e287c90829754/FLAGdfc4bed05 [2020-07-01 11:20:21,834 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_E_WaEU/tmp/b6b3aded29d2458abe9e287c90829754 [2020-07-01 11:20:21,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:20:21,847 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:20:21,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:20:21,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:20:21,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:20:21,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:20:21" (1/1) ... [2020-07-01 11:20:21,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427db074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:21, skipping insertion in model container [2020-07-01 11:20:21,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:20:21" (1/1) ... [2020-07-01 11:20:21,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:20:21,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:20:22,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:20:22,100 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:20:22,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:20:22,129 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:20:22,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22 WrapperNode [2020-07-01 11:20:22,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:20:22,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:20:22,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:20:22,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:20:22,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:20:22,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:20:22,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:20:22,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:20:22,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:20:22,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:20:22,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:20:22,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:20:22,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (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 11:20:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:20:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:20:22,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:20:22,388 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:20:22,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:20:22 BoogieIcfgContainer [2020-07-01 11:20:22,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:20:22,392 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:20:22,392 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:20:22,394 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:20:22,395 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:20:22" (1/1) ... [2020-07-01 11:20:22,407 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:20:22,408 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:20:22,409 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:20:22,409 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:20:22,410 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:20:22,411 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:20:22,412 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:20:22,412 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:20:22,426 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:20:22,433 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:20:22,438 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:20:22,439 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:20:22,455 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:20:22,457 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:20:22,458 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:20:22,458 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:20:22,459 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:20:22,459 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:20:22,459 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:20:22,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:20:22 BasicIcfg [2020-07-01 11:20:22,460 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:20:22,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:20:22,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:20:22,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:20:22,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:20:21" (1/4) ... [2020-07-01 11:20:22,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8d3f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (2/4) ... [2020-07-01 11:20:22,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8d3f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:20:22" (3/4) ... [2020-07-01 11:20:22,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8d3f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:20:22" (4/4) ... [2020-07-01 11:20:22,468 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:20:22,479 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:20:22,485 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:20:22,500 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:20:22,523 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:20:22,523 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:20:22,523 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:20:22,523 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:20:22,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:20:22,524 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:20:22,524 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:20:22,524 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:20:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:20:22,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:20:22,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:20:22,606 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: true [2020-07-01 11:20:22,607 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: true [2020-07-01 11:20:22,607 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:20:22,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:20:22 BasicIcfg [2020-07-01 11:20:22,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:20:22,617 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:20:22,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:20:22,621 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:20:22,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:20:22,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:20:21" (1/5) ... [2020-07-01 11:20:22,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60468b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:20:22,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:20:22" (2/5) ... [2020-07-01 11:20:22,624 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60468b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:20:22,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:20:22" (3/5) ... [2020-07-01 11:20:22,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60468b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:20:22,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:20:22" (4/5) ... [2020-07-01 11:20:22,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60468b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:20:22, skipping insertion in model container [2020-07-01 11:20:22,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:20:22,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:20:22" (5/5) ... [2020-07-01 11:20:22,627 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:20:22,655 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:20:22,655 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:20:22,656 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:20:22,656 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:20:22,656 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:20:22,656 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:20:22,656 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:20:22,656 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:20:22,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:20:22,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:20:22,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:20:22,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:20:22,682 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:20:22,682 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:20:22,683 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:20:22,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:20:22,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:20:22,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:20:22,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:20:22,684 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:20:22,684 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:20:22,689 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 11:20:22,689 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 5#L19-2true [45] L19-2-->L17-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13) (<= v_ULTIMATE.start_main_~x~0_14 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 3#L17-2true [2020-07-01 11:20:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:22,696 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 11:20:22,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:22,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146273899] [2020-07-01 11:20:22,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,777 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:22,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2029, now seen corresponding path program 1 times [2020-07-01 11:20:22,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:22,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181136746] [2020-07-01 11:20:22,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,795 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:22,797 INFO L82 PathProgramCache]: Analyzing trace with hash 63533, now seen corresponding path program 1 times [2020-07-01 11:20:22,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:22,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904650775] [2020-07-01 11:20:22,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:22,810 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:22,856 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:20:22,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:20:22,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:20:22,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:20:22,857 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:20:22,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:22,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:20:22,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:20:22,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:20:22,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:20:22,858 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:20:22,877 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 11:20:22,888 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 11:20:22,896 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 11:20:22,989 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:20:22,989 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 11:20:22,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:22,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:23,007 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:20:23,007 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:23,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:23,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:20:23,046 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:23,078 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:20:23,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:23,157 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:20:23,160 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:20:23,160 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:20:23,160 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:20:23,160 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:20:23,160 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:20:23,160 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:23,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:20:23,161 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:20:23,161 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:20:23,161 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:20:23,161 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:20:23,163 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 11:20:23,168 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 11:20:23,172 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 11:20:23,249 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:20:23,255 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:23,259 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 11:20:23,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:23,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:23,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:23,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:23,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:20:23,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:20:23,274 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:23,326 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 11:20:23,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:23,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:23,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:23,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:23,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:20:23,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:20:23,337 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:23,371 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 11:20:23,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:23,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:20:23,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:23,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:23,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:23,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:20:23,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:20:23,380 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:20:23,385 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:20:23,386 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:23,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:20:23,393 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:20:23,394 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:20:23,394 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:20:23,428 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:20:23,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:20:23,469 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:20:23,471 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:20:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:20:23,482 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:20:23,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:20:23,505 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 11:20:23,541 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:20:23,546 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:20:23,548 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:20:23,577 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:20:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:20:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:20:23,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:20:23,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:20:23,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:23,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:20:23,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:23,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:20:23,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:23,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:20:23,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:20:23,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:20:23,596 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:20:23,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:20:23,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 11:20:23,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:20:23,597 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:20:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 11:20:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:20:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:20:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:20:23,625 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:20:23,625 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:20:23,625 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:20:23,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:20:23,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:20:23,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:20:23,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:20:23,627 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:20:23,627 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:20:23,627 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 42#L17-2 [33] L17-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 44#L19-2 [2020-07-01 11:20:23,627 INFO L796 eck$LassoCheckResult]: Loop: 44#L19-2 [38] L19-2-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_7 (+ v_ULTIMATE.start_main_~y~0_8 1)) (< v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 44#L19-2 [2020-07-01 11:20:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2048, now seen corresponding path program 1 times [2020-07-01 11:20:23,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:23,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811045854] [2020-07-01 11:20:23,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,636 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:23,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:23,637 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-07-01 11:20:23,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:23,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113545211] [2020-07-01 11:20:23,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,645 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:23,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:23,645 INFO L82 PathProgramCache]: Analyzing trace with hash 63526, now seen corresponding path program 1 times [2020-07-01 11:20:23,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:20:23,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976657311] [2020-07-01 11:20:23,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:20:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:20:23,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:20:23,670 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:20:23,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:20:23,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:20:23,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:20:23,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:20:23,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:20:23,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:20:23,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:20:23,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:20:23,671 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:20:23,673 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 11:20:23,677 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 11:20:23,683 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 11:20:23,741 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:20:23,741 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:20:23,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:23,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:23,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:20:23,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:23,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:23,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:20:23,798 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:20:23,835 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:20:23,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:20:23,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:20:24,037 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:20:24,040 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:20:24,040 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:20:24,040 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:20:24,040 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:20:24,040 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:20:24,040 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:24,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:20:24,041 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:20:24,041 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:20:24,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:20:24,041 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:20:24,043 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 11:20:24,049 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 11:20:24,052 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 11:20:24,118 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:20:24,118 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:20:24,124 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 11:20:24,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:24,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:24,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:24,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:24,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:20:24,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:20:24,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:24,173 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 11:20:24,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:24,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:24,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:24,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:24,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:20:24,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:20:24,183 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:24,217 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 11:20:24,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:20:24,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:20:24,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:20:24,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:20:24,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:20:24,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:20:24,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:20:24,225 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:20:24,230 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:20:24,230 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:20:24,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:20:24,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:20:24,238 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:20:24,238 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:20:24,269 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:20:24,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:20:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:20:24,293 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:20:24,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:20:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:20:24,299 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:20:24,299 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:20:24,299 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 11:20:24,300 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:20:24,300 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 11:20:24,300 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:20:24,313 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 11:20:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:20:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:20:24,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:20:24,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:20:24,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:24,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:20:24,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:24,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:20:24,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:20:24,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 11:20:24,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:20:24,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2020-07-01 11:20:24,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:20:24,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:20:24,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:20:24,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:20:24,318 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:20:24,318 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:20:24,319 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:20:24,319 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:20:24,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:20:24,319 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:20:24,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:20:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:20:24 BasicIcfg [2020-07-01 11:20:24,326 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:20:24,328 INFO L168 Benchmark]: Toolchain (without parser) took 2480.46 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 556.1 MB in the beginning and 461.7 MB in the end (delta: 94.4 MB). Peak memory consumption was 140.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,329 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:20:24,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.41 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 556.1 MB in the beginning and 659.6 MB in the end (delta: -103.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.47 ms. Allocated memory is still 695.7 MB. Free memory was 659.6 MB in the beginning and 657.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,330 INFO L168 Benchmark]: Boogie Preprocessor took 18.68 ms. Allocated memory is still 695.7 MB. Free memory was 657.4 MB in the beginning and 656.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,331 INFO L168 Benchmark]: RCFGBuilder took 209.91 ms. Allocated memory is still 695.7 MB. Free memory was 656.4 MB in the beginning and 641.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,331 INFO L168 Benchmark]: BlockEncodingV2 took 67.98 ms. Allocated memory is still 695.7 MB. Free memory was 641.6 MB in the beginning and 637.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,332 INFO L168 Benchmark]: TraceAbstraction took 155.41 ms. Allocated memory is still 695.7 MB. Free memory was 636.2 MB in the beginning and 627.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,333 INFO L168 Benchmark]: BuchiAutomizer took 1708.38 ms. Allocated memory is still 695.7 MB. Free memory was 627.6 MB in the beginning and 461.7 MB in the end (delta: 165.9 MB). Peak memory consumption was 165.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:20:24,336 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 281.41 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 556.1 MB in the beginning and 659.6 MB in the end (delta: -103.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.47 ms. Allocated memory is still 695.7 MB. Free memory was 659.6 MB in the beginning and 657.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.68 ms. Allocated memory is still 695.7 MB. Free memory was 657.4 MB in the beginning and 656.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 209.91 ms. Allocated memory is still 695.7 MB. Free memory was 656.4 MB in the beginning and 641.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 67.98 ms. Allocated memory is still 695.7 MB. Free memory was 641.6 MB in the beginning and 637.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.41 ms. Allocated memory is still 695.7 MB. Free memory was 636.2 MB in the beginning and 627.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1708.38 ms. Allocated memory is still 695.7 MB. Free memory was 627.6 MB in the beginning and 461.7 MB in the end (delta: 165.9 MB). Peak memory consumption was 165.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 11 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax197 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp100 dnf100 smp100 tf110 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:20:18.553 ----------------------------------------------- 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_E_WaEU/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:20:24.972 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check