YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 05:40:09,894 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 05:40:09,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 05:40:09,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 05:40:09,907 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 05:40:09,908 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 05:40:09,909 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 05:40:09,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 05:40:09,912 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 05:40:09,913 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 05:40:09,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 05:40:09,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 05:40:09,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 05:40:09,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 05:40:09,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 05:40:09,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 05:40:09,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 05:40:09,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 05:40:09,921 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 05:40:09,923 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 05:40:09,924 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 05:40:09,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 05:40:09,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 05:40:09,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 05:40:09,927 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 05:40:09,928 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 05:40:09,928 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 05:40:09,929 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 05:40:09,929 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 05:40:09,930 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 05:40:09,930 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 05:40:09,931 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 05:40:09,932 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 05:40:09,932 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 05:40:09,933 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 05:40:09,933 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 05:40:09,933 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 05:40:09,934 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 05:40:09,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 05:40:09,935 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 05:40:09,949 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 05:40:09,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 05:40:09,950 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 05:40:09,951 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 05:40:09,951 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 05:40:09,951 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:09,951 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 05:40:09,951 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 05:40:09,952 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:09,953 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 05:40:09,953 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 05:40:09,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 05:40:09,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 05:40:09,953 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 05:40:09,953 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 05:40:09,954 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 05:40:09,954 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 05:40:09,954 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 05:40:09,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 05:40:09,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 05:40:09,955 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 05:40:09,955 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 05:40:09,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 05:40:09,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 05:40:09,993 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 05:40:09,996 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 05:40:09,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 05:40:09,998 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 05:40:09,999 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:10,062 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/87c56e1a82a34029bd1e2b54c6db02d7/FLAG0603662a9 [2020-06-22 05:40:10,388 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 05:40:10,388 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 05:40:10,395 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/87c56e1a82a34029bd1e2b54c6db02d7/FLAG0603662a9 [2020-06-22 05:40:10,798 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/87c56e1a82a34029bd1e2b54c6db02d7 [2020-06-22 05:40:10,809 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 05:40:10,811 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 05:40:10,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:10,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 05:40:10,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 05:40:10,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:10" (1/1) ... [2020-06-22 05:40:10,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d51a95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:10, skipping insertion in model container [2020-06-22 05:40:10,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 05:40:10" (1/1) ... [2020-06-22 05:40:10,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 05:40:10,845 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 05:40:11,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:11,005 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 05:40:11,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 05:40:11,096 INFO L195 MainTranslator]: Completed translation [2020-06-22 05:40:11,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11 WrapperNode [2020-06-22 05:40:11,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 05:40:11,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:11,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 05:40:11,098 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 05:40:11,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 05:40:11,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 05:40:11,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 05:40:11,135 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 05:40:11,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 05:40:11,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 05:40:11,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 05:40:11,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 05:40:11,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (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 05:40:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure twoWay [2020-06-22 05:40:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure twoWay [2020-06-22 05:40:11,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 05:40:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 05:40:11,373 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 05:40:11,374 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-22 05:40:11,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:11 BoogieIcfgContainer [2020-06-22 05:40:11,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 05:40:11,376 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 05:40:11,376 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 05:40:11,378 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 05:40:11,379 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:11" (1/1) ... [2020-06-22 05:40:11,396 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 19 edges [2020-06-22 05:40:11,398 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 05:40:11,399 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 05:40:11,400 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 05:40:11,400 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 05:40:11,402 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 05:40:11,403 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 05:40:11,403 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 05:40:11,420 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 05:40:11,437 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 05:40:11,442 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:40:11,444 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:11,451 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 05:40:11,453 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states [2020-06-22 05:40:11,455 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:40:11,455 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:11,460 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 05:40:11,461 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:40:11,461 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 05:40:11,461 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 05:40:11,462 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 05:40:11,462 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 05:40:11,462 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 12 edges [2020-06-22 05:40:11,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:11 BasicIcfg [2020-06-22 05:40:11,463 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 05:40:11,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 05:40:11,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 05:40:11,468 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 05:40:11,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 05:40:10" (1/4) ... [2020-06-22 05:40:11,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b61030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (2/4) ... [2020-06-22 05:40:11,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b61030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:11" (3/4) ... [2020-06-22 05:40:11,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b61030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:11" (4/4) ... [2020-06-22 05:40:11,472 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:11,484 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 05:40:11,493 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 05:40:11,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 05:40:11,545 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:11,546 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 05:40:11,546 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 05:40:11,547 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:11,547 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:11,547 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:11,547 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 05:40:11,547 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:11,547 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 05:40:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-06-22 05:40:11,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 05:40:11,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-06-22 05:40:11,629 INFO L448 ceAbstractionStarter]: For program point twoWayFINAL(lines 26 38) no Hoare annotation was computed. [2020-06-22 05:40:11,629 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 35) no Hoare annotation was computed. [2020-06-22 05:40:11,629 INFO L451 ceAbstractionStarter]: At program point L31-2(lines 31 35) the Hoare annotation is: true [2020-06-22 05:40:11,630 INFO L448 ceAbstractionStarter]: For program point twoWayEXIT(lines 26 38) no Hoare annotation was computed. [2020-06-22 05:40:11,630 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 37) no Hoare annotation was computed. [2020-06-22 05:40:11,630 INFO L451 ceAbstractionStarter]: At program point twoWayENTRY(lines 26 38) the Hoare annotation is: true [2020-06-22 05:40:11,630 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2020-06-22 05:40:11,631 INFO L451 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2020-06-22 05:40:11,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 05:40:11,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:11 BasicIcfg [2020-06-22 05:40:11,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 05:40:11,635 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 05:40:11,635 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 05:40:11,639 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 05:40:11,639 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:11,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 05:40:10" (1/5) ... [2020-06-22 05:40:11,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,640 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:11,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 05:40:11" (2/5) ... [2020-06-22 05:40:11,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,641 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:11,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:40:11" (3/5) ... [2020-06-22 05:40:11,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,642 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:11,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 05:40:11" (4/5) ... [2020-06-22 05:40:11,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:11, skipping insertion in model container [2020-06-22 05:40:11,643 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 05:40:11,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:40:11" (5/5) ... [2020-06-22 05:40:11,644 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 05:40:11,674 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 05:40:11,674 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 05:40:11,674 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 05:40:11,675 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 05:40:11,675 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 05:40:11,675 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 05:40:11,675 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 05:40:11,675 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 05:40:11,675 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 05:40:11,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-06-22 05:40:11,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:40:11,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:11,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:11,706 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:11,707 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 05:40:11,707 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 05:40:11,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-06-22 05:40:11,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:40:11,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:11,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:11,709 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:11,709 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 05:40:11,714 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [62] ULTIMATE.startENTRY-->L48: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_9) (<= 0 v_ULTIMATE.start_main_~y~0_7)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 4#L48true [36] L48-->twoWayENTRY: Formula: (and (= |v_twoWay_#in~terminateInParam_2| 1) (= |v_twoWay_#in~nInParam_2| v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{twoWay_#in~n=|v_twoWay_#in~nInParam_2|, twoWay_#in~terminate=|v_twoWay_#in~terminateInParam_2|} AuxVars[] AssignedVars[twoWay_#in~terminate, twoWay_#in~n]< 5#twoWayENTRYtrue [2020-06-22 05:40:11,715 INFO L796 eck$LassoCheckResult]: Loop: 5#twoWayENTRYtrue [45] twoWayENTRY-->L27: Formula: (and (= v_twoWay_~n_1 |v_twoWay_#in~n_1|) (= v_twoWay_~terminate_1 |v_twoWay_#in~terminate_1|)) InVars {twoWay_#in~n=|v_twoWay_#in~n_1|, twoWay_#in~terminate=|v_twoWay_#in~terminate_1|} OutVars{twoWay_~n=v_twoWay_~n_1, twoWay_#in~terminate=|v_twoWay_#in~terminate_1|, twoWay_#in~n=|v_twoWay_#in~n_1|, twoWay_~terminate=v_twoWay_~terminate_1} AuxVars[] AssignedVars[twoWay_~n, twoWay_~terminate] 11#L27true [56] L27-->L31: Formula: (and (= v_twoWay_~m~0_1 v_twoWay_~n_3) (>= v_twoWay_~n_3 0)) InVars {twoWay_~n=v_twoWay_~n_3} OutVars{twoWay_~m~0=v_twoWay_~m~0_1, twoWay_~n=v_twoWay_~n_3} AuxVars[] AssignedVars[twoWay_~m~0] 10#L31true [40] L31-->L31-2: Formula: (and (= v_twoWay_~terminate_3 0) (= v_twoWay_~m~0_4 (+ v_twoWay_~m~0_5 1))) InVars {twoWay_~m~0=v_twoWay_~m~0_5, twoWay_~terminate=v_twoWay_~terminate_3} OutVars{twoWay_#t~post1=|v_twoWay_#t~post1_1|, twoWay_~m~0=v_twoWay_~m~0_4, twoWay_~terminate=v_twoWay_~terminate_3} AuxVars[] AssignedVars[twoWay_#t~post1, twoWay_~m~0] 7#L31-2true [38] L31-2-->twoWayENTRY: Formula: (and (= |v_twoWay_#in~nInParam_1| v_twoWay_~m~0_8) (= |v_twoWay_#in~terminateInParam_1| v_twoWay_~terminate_5)) InVars {twoWay_~m~0=v_twoWay_~m~0_8, twoWay_~terminate=v_twoWay_~terminate_5} OutVars{twoWay_#in~n=|v_twoWay_#in~nInParam_1|, twoWay_#in~terminate=|v_twoWay_#in~terminateInParam_1|} AuxVars[] AssignedVars[twoWay_#in~terminate, twoWay_#in~n]< 5#twoWayENTRYtrue [2020-06-22 05:40:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:11,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 1 times [2020-06-22 05:40:11,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:11,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:11,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:11,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:11,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:11,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2319210, now seen corresponding path program 1 times [2020-06-22 05:40:11,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:11,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:11,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:11,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:11,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1597813808, now seen corresponding path program 1 times [2020-06-22 05:40:11,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:11,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:11,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:11,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:11,882 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 05:40:11,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 05:40:11,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 05:40:11,983 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:11,985 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:11,985 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:11,985 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:11,985 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:11,985 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:11,985 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:11,985 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:11,986 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 05:40:11,986 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:11,986 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:12,005 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 05:40:12,012 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 05:40:12,014 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 05:40:12,017 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 05:40:12,019 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 05:40:12,021 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 05:40:12,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:12,032 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 05:40:12,039 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 05:40:12,123 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:12,124 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 05:40:12,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,130 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,139 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,139 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post1=0} Honda state: {twoWay_#t~post1=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 05:40:12,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,175 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,175 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,203 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,207 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,207 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~m~0=0} Honda state: {twoWay_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,236 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,237 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,240 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,240 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,268 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,271 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,272 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~n=0} Honda state: {twoWay_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,298 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:12,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,339 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,339 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#in~n=0} Honda state: {twoWay_#in~n=0} Generalized eigenvectors: [{twoWay_#in~n=0}, {twoWay_#in~n=0}, {twoWay_#in~n=1}] Lambdas: [0, 0, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,367 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,371 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,371 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post0=0} Honda state: {twoWay_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,398 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,409 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,409 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#in~terminate=0} Honda state: {twoWay_#in~terminate=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,436 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,437 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,440 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,441 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~terminate=0} Honda state: {twoWay_~terminate=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 05:40:12,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 05:40:12,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 05:40:12,482 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-06-22 05:40:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 05:40:12,515 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-06-22 05:40:12,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 05:40:12,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-06-22 05:40:12,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:40:12,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 6 states and 6 transitions. [2020-06-22 05:40:12,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 05:40:12,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-06-22 05:40:12,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2020-06-22 05:40:12,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:40:12,527 INFO L706 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-06-22 05:40:12,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2020-06-22 05:40:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-06-22 05:40:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 05:40:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-06-22 05:40:12,557 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-06-22 05:40:12,557 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-06-22 05:40:12,557 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 05:40:12,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2020-06-22 05:40:12,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 05:40:12,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 05:40:12,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 05:40:12,558 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 05:40:12,558 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 05:40:12,558 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY [62] ULTIMATE.startENTRY-->L48: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_9) (<= 0 v_ULTIMATE.start_main_~y~0_7)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret6] 33#L48 [36] L48-->twoWayENTRY: Formula: (and (= |v_twoWay_#in~terminateInParam_2| 1) (= |v_twoWay_#in~nInParam_2| v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{twoWay_#in~n=|v_twoWay_#in~nInParam_2|, twoWay_#in~terminate=|v_twoWay_#in~terminateInParam_2|} AuxVars[] AssignedVars[twoWay_#in~terminate, twoWay_#in~n]< 34#twoWayENTRY [2020-06-22 05:40:12,559 INFO L796 eck$LassoCheckResult]: Loop: 34#twoWayENTRY [45] twoWayENTRY-->L27: Formula: (and (= v_twoWay_~n_1 |v_twoWay_#in~n_1|) (= v_twoWay_~terminate_1 |v_twoWay_#in~terminate_1|)) InVars {twoWay_#in~n=|v_twoWay_#in~n_1|, twoWay_#in~terminate=|v_twoWay_#in~terminate_1|} OutVars{twoWay_~n=v_twoWay_~n_1, twoWay_#in~terminate=|v_twoWay_#in~terminate_1|, twoWay_#in~n=|v_twoWay_#in~n_1|, twoWay_~terminate=v_twoWay_~terminate_1} AuxVars[] AssignedVars[twoWay_~n, twoWay_~terminate] 36#L27 [56] L27-->L31: Formula: (and (= v_twoWay_~m~0_1 v_twoWay_~n_3) (>= v_twoWay_~n_3 0)) InVars {twoWay_~n=v_twoWay_~n_3} OutVars{twoWay_~m~0=v_twoWay_~m~0_1, twoWay_~n=v_twoWay_~n_3} AuxVars[] AssignedVars[twoWay_~m~0] 37#L31 [59] L31-->L31-2: Formula: (and (= v_twoWay_~m~0_3 (+ v_twoWay_~m~0_2 1)) (> v_twoWay_~terminate_2 0)) InVars {twoWay_~m~0=v_twoWay_~m~0_3, twoWay_~terminate=v_twoWay_~terminate_2} OutVars{twoWay_#t~post0=|v_twoWay_#t~post0_1|, twoWay_~m~0=v_twoWay_~m~0_2, twoWay_~terminate=v_twoWay_~terminate_2} AuxVars[] AssignedVars[twoWay_#t~post0, twoWay_~m~0] 35#L31-2 [38] L31-2-->twoWayENTRY: Formula: (and (= |v_twoWay_#in~nInParam_1| v_twoWay_~m~0_8) (= |v_twoWay_#in~terminateInParam_1| v_twoWay_~terminate_5)) InVars {twoWay_~m~0=v_twoWay_~m~0_8, twoWay_~terminate=v_twoWay_~terminate_5} OutVars{twoWay_#in~n=|v_twoWay_#in~nInParam_1|, twoWay_#in~terminate=|v_twoWay_#in~terminateInParam_1|} AuxVars[] AssignedVars[twoWay_#in~terminate, twoWay_#in~n]< 34#twoWayENTRY [2020-06-22 05:40:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:12,559 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 2 times [2020-06-22 05:40:12,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:12,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:12,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:12,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2319799, now seen corresponding path program 1 times [2020-06-22 05:40:12,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:12,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:12,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 05:40:12,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:12,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1597813219, now seen corresponding path program 1 times [2020-06-22 05:40:12,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 05:40:12,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 05:40:12,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 05:40:12,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 05:40:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 05:40:12,648 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:12,648 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:12,648 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:12,648 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:12,648 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 05:40:12,648 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,649 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:12,649 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:12,649 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:12,649 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:12,649 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:12,651 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 05:40:12,659 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 05:40:12,666 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 05:40:12,668 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 05:40:12,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 05:40:12,679 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 05:40:12,682 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 05:40:12,685 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 05:40:12,692 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 05:40:12,757 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:12,757 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,764 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,764 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,769 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,769 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,798 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,799 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,828 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#in~terminate=1} Honda state: {twoWay_#in~terminate=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,842 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,842 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post0=0} Honda state: {twoWay_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,879 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 05:40:12,879 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~terminate=0} Honda state: {twoWay_~terminate=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-06-22 05:40:12,910 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 05:40:12,910 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 05:40:12,942 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 05:40:12,942 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 05:40:12,973 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 05:40:12,975 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 05:40:12,975 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 05:40:12,976 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 05:40:12,976 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 05:40:12,976 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 05:40:12,976 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 05:40:12,976 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 05:40:12,976 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 05:40:12,976 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 05:40:12,976 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 05:40:12,976 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 05:40:12,978 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 05:40:12,982 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 05:40:12,985 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 05:40:12,992 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 05:40:12,995 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 05:40:13,002 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 05:40:13,004 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 05:40:13,006 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 05:40:13,008 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 05:40:13,078 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 05:40:13,084 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 05:40:13,086 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 05:40:13,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:13,087 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:13,088 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:13,088 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:13,088 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:13,091 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:13,091 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:13,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:13,095 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 05:40:13,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:13,097 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:13,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:13,097 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:13,097 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:13,098 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:13,098 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:13,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:13,099 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 05:40:13,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:13,100 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:13,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:13,100 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:13,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:13,101 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:13,101 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:13,105 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:13,106 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 05:40:13,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:13,107 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:13,107 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:13,107 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:13,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:13,108 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:13,108 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:13,111 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 05:40:13,111 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 05:40:13,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 05:40:13,112 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 05:40:13,112 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 05:40:13,112 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 05:40:13,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 05:40:13,113 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 05:40:13,113 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 05:40:13,119 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 05:40:13,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 05:40:13,123 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 05:40:13,126 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 05:40:13,126 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 05:40:13,126 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 05:40:13,127 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(twoWay_#in~n) = 2*twoWay_#in~n + 1 Supporting invariants [] [2020-06-22 05:40:13,128 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 05:40:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 05:40:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:13,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 05:40:13,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 05:40:13,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2020-06-22 05:40:13,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 05:40:13,287 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 05:40:13,290 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 05:40:13,292 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 4 loop predicates [2020-06-22 05:40:13,293 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand 5 states. [2020-06-22 05:40:13,456 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 6 transitions. cyclomatic complexity: 1. Second operand 5 states. Result 16 states and 16 transitions. Complement of second has 15 states. [2020-06-22 05:40:13,457 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 05:40:13,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 05:40:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-06-22 05:40:13,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 05:40:13,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:13,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-22 05:40:13,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:13,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-22 05:40:13,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 05:40:13,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 16 transitions. [2020-06-22 05:40:13,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:13,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-06-22 05:40:13,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 05:40:13,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 05:40:13,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 05:40:13,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 05:40:13,472 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:13,472 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:13,472 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 05:40:13,472 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 05:40:13,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 05:40:13,472 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 05:40:13,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 05:40:13,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 05:40:13 BasicIcfg [2020-06-22 05:40:13,479 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 05:40:13,479 INFO L168 Benchmark]: Toolchain (without parser) took 2669.42 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 563.9 MB in the beginning and 426.0 MB in the end (delta: 137.9 MB). Peak memory consumption was 181.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,481 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 05:40:13,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.62 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 563.9 MB in the beginning and 658.9 MB in the end (delta: -95.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.85 ms. Allocated memory is still 693.1 MB. Free memory was 658.9 MB in the beginning and 657.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,483 INFO L168 Benchmark]: Boogie Preprocessor took 18.20 ms. Allocated memory is still 693.1 MB. Free memory was 657.9 MB in the beginning and 656.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,483 INFO L168 Benchmark]: RCFGBuilder took 221.98 ms. Allocated memory is still 693.1 MB. Free memory was 656.8 MB in the beginning and 640.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,484 INFO L168 Benchmark]: BlockEncodingV2 took 87.09 ms. Allocated memory is still 693.1 MB. Free memory was 640.3 MB in the beginning and 633.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,484 INFO L168 Benchmark]: TraceAbstraction took 170.67 ms. Allocated memory is still 693.1 MB. Free memory was 633.9 MB in the beginning and 624.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,485 INFO L168 Benchmark]: BuchiAutomizer took 1843.88 ms. Allocated memory is still 693.1 MB. Free memory was 624.2 MB in the beginning and 426.0 MB in the end (delta: 198.1 MB). Peak memory consumption was 198.1 MB. Max. memory is 50.3 GB. [2020-06-22 05:40:13,489 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 19 edges - StatisticsResult: Encoded RCFG 9 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 285.62 ms. Allocated memory was 649.6 MB in the beginning and 693.1 MB in the end (delta: 43.5 MB). Free memory was 563.9 MB in the beginning and 658.9 MB in the end (delta: -95.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.85 ms. Allocated memory is still 693.1 MB. Free memory was 658.9 MB in the beginning and 657.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.20 ms. Allocated memory is still 693.1 MB. Free memory was 657.9 MB in the beginning and 656.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 221.98 ms. Allocated memory is still 693.1 MB. Free memory was 656.8 MB in the beginning and 640.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 87.09 ms. Allocated memory is still 693.1 MB. Free memory was 640.3 MB in the beginning and 633.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 170.67 ms. Allocated memory is still 693.1 MB. Free memory was 633.9 MB in the beginning and 624.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1843.88 ms. Allocated memory is still 693.1 MB. Free memory was 624.2 MB in the beginning and 426.0 MB in the end (delta: 198.1 MB). Peak memory consumption was 198.1 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, 9 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=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function 2 * \old(n) + 1 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 19 SDslu, 3 SDs, 0 SdLazy, 15 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 05:40:07.588 ----------------------------------------------- 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 05:40:13.722 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check