YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:02:53,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:02:53,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:02:53,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:02:53,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:02:53,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:02:53,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:02:53,641 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:02:53,643 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:02:53,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:02:53,644 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:02:53,645 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:02:53,645 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:02:53,646 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:02:53,647 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:02:53,648 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:02:53,649 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:02:53,650 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:02:53,652 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:02:53,654 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:02:53,655 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:02:53,656 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:02:53,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:02:53,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:02:53,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:02:53,659 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:02:53,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:02:53,660 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:02:53,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:02:53,661 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:02:53,661 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:02:53,662 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:02:53,663 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:02:53,663 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:02:53,664 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:02:53,664 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:02:53,664 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:02:53,665 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:02:53,666 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:02:53,666 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:02:53,680 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:02:53,680 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:02:53,681 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:02:53,682 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:02:53,682 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:02:53,682 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:02:53,682 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:02:53,682 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:02:53,683 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:02:53,684 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:02:53,684 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:02:53,684 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:02:53,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:02:53,684 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:02:53,685 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:02:53,685 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:02:53,685 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:02:53,685 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:02:53,685 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:02:53,685 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:02:53,686 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:02:53,686 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:02:53,686 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:02:53,686 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:02:53,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:02:53,725 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:02:53,728 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:02:53,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:02:53,730 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:02:53,731 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:02:53,835 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/5921d32a052e4a78b750d9c7987910d5/FLAGc15904e8d [2020-06-22 07:02:54,173 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:02:54,174 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:02:54,181 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/5921d32a052e4a78b750d9c7987910d5/FLAGc15904e8d [2020-06-22 07:02:54,564 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/5921d32a052e4a78b750d9c7987910d5 [2020-06-22 07:02:54,576 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:02:54,577 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:02:54,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:02:54,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:02:54,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:02:54,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b1039c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54, skipping insertion in model container [2020-06-22 07:02:54,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:02:54,612 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:02:54,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:02:54,769 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:02:54,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:02:54,867 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:02:54,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54 WrapperNode [2020-06-22 07:02:54,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:02:54,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:02:54,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:02:54,869 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:02:54,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:02:54,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:02:54,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:02:54,905 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:02:54,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... [2020-06-22 07:02:54,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:02:54,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:02:54,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:02:54,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:02:54,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:02:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2020-06-22 07:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2020-06-22 07:02:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:02:55,124 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:02:55,124 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-22 07:02:55,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:02:55 BoogieIcfgContainer [2020-06-22 07:02:55,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:02:55,126 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:02:55,126 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:02:55,128 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:02:55,129 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:02:55" (1/1) ... [2020-06-22 07:02:55,145 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 17 edges [2020-06-22 07:02:55,146 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:02:55,147 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:02:55,147 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:02:55,148 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:02:55,149 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:02:55,150 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:02:55,151 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:02:55,165 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:02:55,173 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 07:02:55,178 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:02:55,180 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:02:55,188 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 07:02:55,190 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states [2020-06-22 07:02:55,192 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:02:55,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:02:55,199 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 07:02:55,200 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:02:55,200 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:02:55,200 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:02:55,201 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:02:55,201 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:02:55,201 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 9 edges [2020-06-22 07:02:55,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:02:55 BasicIcfg [2020-06-22 07:02:55,202 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:02:55,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:02:55,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:02:55,206 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:02:55,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:02:54" (1/4) ... [2020-06-22 07:02:55,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12971d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (2/4) ... [2020-06-22 07:02:55,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12971d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:02:55" (3/4) ... [2020-06-22 07:02:55,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12971d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:02:55" (4/4) ... [2020-06-22 07:02:55,210 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:02:55,220 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:02:55,229 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:02:55,246 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:02:55,274 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:02:55,275 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:02:55,275 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:02:55,275 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:02:55,275 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:02:55,276 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:02:55,276 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:02:55,276 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:02:55,276 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:02:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-06-22 07:02:55,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:02:55,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-06-22 07:02:55,358 INFO L448 ceAbstractionStarter]: For program point factEXIT(lines 17 23) no Hoare annotation was computed. [2020-06-22 07:02:55,359 INFO L451 ceAbstractionStarter]: At program point factENTRY(lines 17 23) the Hoare annotation is: true [2020-06-22 07:02:55,359 INFO L448 ceAbstractionStarter]: For program point factFINAL(lines 17 23) no Hoare annotation was computed. [2020-06-22 07:02:55,359 INFO L451 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: true [2020-06-22 07:02:55,359 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 21) no Hoare annotation was computed. [2020-06-22 07:02:55,359 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-06-22 07:02:55,360 INFO L451 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: true [2020-06-22 07:02:55,360 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:02:55,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:02:55 BasicIcfg [2020-06-22 07:02:55,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:02:55,364 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:02:55,364 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:02:55,367 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:02:55,368 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:02:55,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:02:54" (1/5) ... [2020-06-22 07:02:55,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f771fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,369 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:02:55,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:02:54" (2/5) ... [2020-06-22 07:02:55,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f771fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,370 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:02:55,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:02:55" (3/5) ... [2020-06-22 07:02:55,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f771fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,370 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:02:55,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:02:55" (4/5) ... [2020-06-22 07:02:55,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f771fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:02:55, skipping insertion in model container [2020-06-22 07:02:55,371 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:02:55,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:02:55" (5/5) ... [2020-06-22 07:02:55,373 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:02:55,400 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:02:55,401 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:02:55,401 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:02:55,401 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:02:55,401 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:02:55,401 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:02:55,402 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:02:55,402 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:02:55,402 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:02:55,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 07:02:55,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:02:55,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:02:55,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:02:55,432 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:02:55,432 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:02:55,432 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:02:55,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-06-22 07:02:55,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:02:55,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:02:55,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:02:55,434 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 07:02:55,434 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:02:55,439 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [51] ULTIMATE.startENTRY-->L33: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_9) (<= 0 v_ULTIMATE.start_main_~y~1_7)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, ULTIMATE.start_main_~y~1=v_ULTIMATE.start_main_~y~1_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~1, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret4] 5#L33true [40] L33-->factENTRY: Formula: (= |v_fact_#in~xInParam_2| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{fact_#in~x=|v_fact_#in~xInParam_2|} AuxVars[] AssignedVars[fact_#in~x]< 3#factENTRYtrue [2020-06-22 07:02:55,440 INFO L796 eck$LassoCheckResult]: Loop: 3#factENTRYtrue [37] factENTRY-->L18: Formula: (= v_fact_~x_1 |v_fact_#in~x_1|) InVars {fact_#in~x=|v_fact_#in~x_1|} OutVars{fact_#in~x=|v_fact_#in~x_1|, fact_~x=v_fact_~x_1} AuxVars[] AssignedVars[fact_~x] 6#L18true [31] L18-->L19: Formula: (< 1 v_fact_~x_2) InVars {fact_~x=v_fact_~x_2} OutVars{fact_~x=v_fact_~x_2} AuxVars[] AssignedVars[] 9#L19true [34] L19-->factENTRY: Formula: (= |v_fact_#in~xInParam_1| (+ v_fact_~x_6 (- 1))) InVars {fact_~x=v_fact_~x_6} OutVars{fact_#in~x=|v_fact_#in~xInParam_1|} AuxVars[] AssignedVars[fact_#in~x]< 3#factENTRYtrue [2020-06-22 07:02:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:02:55,446 INFO L82 PathProgramCache]: Analyzing trace with hash 2582, now seen corresponding path program 1 times [2020-06-22 07:02:55,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:02:55,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:02:55,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:02:55,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:02:55,521 INFO L82 PathProgramCache]: Analyzing trace with hash 66343, now seen corresponding path program 1 times [2020-06-22 07:02:55,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:02:55,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:02:55,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:02:55,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:02:55,534 INFO L82 PathProgramCache]: Analyzing trace with hash 76956914, now seen corresponding path program 1 times [2020-06-22 07:02:55,534 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:02:55,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:02:55,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:02:55,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:02:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:02:55,614 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:02:55,615 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:02:55,615 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:02:55,615 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:02:55,615 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:02:55,616 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:02:55,616 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:02:55,616 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:02:55,616 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:02:55,616 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:02:55,616 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:02:55,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,701 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:02:55,702 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:02:55,710 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:02:55,710 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:02:55,719 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:02:55,719 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~y~0=0} Honda state: {fact_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:02:55,748 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:02:55,749 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:02:55,781 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:02:55,781 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:02:55,811 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:02:55,813 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:02:55,813 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:02:55,813 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:02:55,813 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:02:55,814 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:02:55,814 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:02:55,814 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:02:55,814 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:02:55,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:02:55,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:02:55,814 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:02:55,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:02:55,881 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:02:55,887 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:02:55,888 INFO L122 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 [2020-06-22 07:02:55,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:02:55,890 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:02:55,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:02:55,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:02:55,891 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:02:55,893 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:02:55,893 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:02:55,898 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:02:55,898 INFO L122 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 [2020-06-22 07:02:55,899 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:02:55,899 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:02:55,899 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:02:55,899 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:02:55,900 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:02:55,900 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:02:55,900 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:02:55,902 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:02:55,902 INFO L122 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 [2020-06-22 07:02:55,903 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:02:55,903 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:02:55,903 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:02:55,903 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:02:55,903 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:02:55,904 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:02:55,905 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:02:55,911 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:02:55,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 07:02:55,918 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:02:55,920 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:02:55,920 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:02:55,921 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:02:55,921 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~x) = 1*fact_#in~x Supporting invariants [] [2020-06-22 07:02:55,923 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:02:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:02:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:02:55,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:02:55,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:02:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:02:55,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-22 07:02:55,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:02:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:02:56,053 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 07:02:56,058 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 [2020-06-22 07:02:56,059 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 4 states. [2020-06-22 07:02:56,175 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 4 states. Result 32 states and 36 transitions. Complement of second has 15 states. [2020-06-22 07:02:56,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-06-22 07:02:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:02:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-06-22 07:02:56,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 07:02:56,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:02:56,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 07:02:56,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:02:56,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 07:02:56,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:02:56,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2020-06-22 07:02:56,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:02:56,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-06-22 07:02:56,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:02:56,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:02:56,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:02:56,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:02:56,200 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:02:56,201 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:02:56,201 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:02:56,201 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:02:56,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:02:56,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:02:56,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:02:56,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:02:56 BasicIcfg [2020-06-22 07:02:56,207 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:02:56,207 INFO L168 Benchmark]: Toolchain (without parser) took 1631.27 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.1 MB in the beginning and 545.4 MB in the end (delta: 17.8 MB). Peak memory consumption was 63.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,209 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:02:56,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.55 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.1 MB in the beginning and 663.0 MB in the end (delta: -99.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.88 ms. Allocated memory is still 695.2 MB. Free memory was 663.0 MB in the beginning and 660.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,211 INFO L168 Benchmark]: Boogie Preprocessor took 16.70 ms. Allocated memory is still 695.2 MB. Free memory is still 660.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:02:56,212 INFO L168 Benchmark]: RCFGBuilder took 204.59 ms. Allocated memory is still 695.2 MB. Free memory was 660.3 MB in the beginning and 644.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,212 INFO L168 Benchmark]: BlockEncodingV2 took 75.69 ms. Allocated memory is still 695.2 MB. Free memory was 644.2 MB in the beginning and 637.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,213 INFO L168 Benchmark]: TraceAbstraction took 160.51 ms. Allocated memory is still 695.2 MB. Free memory was 637.8 MB in the beginning and 627.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,213 INFO L168 Benchmark]: BuchiAutomizer took 843.26 ms. Allocated memory is still 695.2 MB. Free memory was 627.0 MB in the beginning and 545.4 MB in the end (delta: 81.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:02:56,217 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 17 edges - StatisticsResult: Encoded RCFG 8 locations, 9 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 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.55 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.1 MB in the beginning and 663.0 MB in the end (delta: -99.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.88 ms. Allocated memory is still 695.2 MB. Free memory was 663.0 MB in the beginning and 660.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.70 ms. Allocated memory is still 695.2 MB. Free memory is still 660.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * RCFGBuilder took 204.59 ms. Allocated memory is still 695.2 MB. Free memory was 660.3 MB in the beginning and 644.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.69 ms. Allocated memory is still 695.2 MB. Free memory was 644.2 MB in the beginning and 637.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.51 ms. Allocated memory is still 695.2 MB. Free memory was 637.8 MB in the beginning and 627.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 843.26 ms. Allocated memory is still 695.2 MB. Free memory was 627.0 MB in the beginning and 545.4 MB in the end (delta: 81.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:02:51.368 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:02:56.450 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check