/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:45:37,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:45:37,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:45:37,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:45:37,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:45:37,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:45:37,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:45:37,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:45:37,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:45:37,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:45:37,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:45:37,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:45:37,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:45:37,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:45:37,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:45:37,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:45:37,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:45:37,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:45:37,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:45:37,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:45:37,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:45:37,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:45:37,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:45:37,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:45:37,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:45:37,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:45:37,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:45:37,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:45:37,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:45:37,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:45:37,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:45:37,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:45:37,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:45:37,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:45:37,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:45:37,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:45:37,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:45:37,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:45:37,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:45:37,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:45:37,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:45:37,858 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:45:37,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:45:37,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:45:37,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:45:37,874 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:45:37,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:45:37,874 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:45:37,874 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:45:37,874 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:45:37,874 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:45:37,875 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:37,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:45:37,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:45:37,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:45:37,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:45:37,876 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:45:37,876 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:45:37,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:45:37,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:45:37,877 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:45:37,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:45:37,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:45:37,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:45:37,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:45:37,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:45:38,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:45:38,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:45:38,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:45:38,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:45:38,060 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:45:38,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:45:38,130 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RwcEhP/tmp/d777a3e2ef9948dba5dedaa33d097e98/FLAG480283642 [2020-07-01 12:45:38,469 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:45:38,469 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:45:38,476 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_RwcEhP/tmp/d777a3e2ef9948dba5dedaa33d097e98/FLAG480283642 [2020-07-01 12:45:38,901 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_RwcEhP/tmp/d777a3e2ef9948dba5dedaa33d097e98 [2020-07-01 12:45:38,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:45:38,914 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:45:38,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:45:38,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:45:38,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:45:38,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:45:38" (1/1) ... [2020-07-01 12:45:38,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d70b2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:38, skipping insertion in model container [2020-07-01 12:45:38,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:45:38" (1/1) ... [2020-07-01 12:45:38,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:45:38,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:45:39,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:45:39,166 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:45:39,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:45:39,195 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:45:39,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39 WrapperNode [2020-07-01 12:45:39,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:45:39,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:45:39,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:45:39,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:45:39,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:45:39,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:45:39,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:45:39,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:45:39,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:45:39,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:45:39,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:45:39,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:45:39,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:45:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:45:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:45:39,457 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:45:39,457 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:45:39,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:45:39 BoogieIcfgContainer [2020-07-01 12:45:39,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:45:39,462 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:45:39,462 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:45:39,464 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:45:39,464 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:45:39" (1/1) ... [2020-07-01 12:45:39,476 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 12:45:39,478 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:45:39,478 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:45:39,479 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:45:39,480 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:45:39,481 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:45:39,482 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:45:39,482 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:45:39,496 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:45:39,509 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:45:39,513 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:45:39,514 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:45:39,524 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:45:39,526 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 12:45:39,528 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:45:39,528 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:45:39,528 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:45:39,528 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:45:39,529 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 12:45:39,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:45:39 BasicIcfg [2020-07-01 12:45:39,529 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:45:39,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:45:39,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:45:39,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:45:39,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:45:38" (1/4) ... [2020-07-01 12:45:39,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507fa9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (2/4) ... [2020-07-01 12:45:39,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507fa9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:45:39" (3/4) ... [2020-07-01 12:45:39,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507fa9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:45:39" (4/4) ... [2020-07-01 12:45:39,538 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:45:39,548 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:45:39,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:45:39,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:45:39,592 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:45:39,592 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:45:39,592 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:45:39,592 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:45:39,592 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:45:39,593 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:45:39,593 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:45:39,593 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:45:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 12:45:39,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:45:39,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 12:45:39,665 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:45:39,665 INFO L271 CegarLoopResult]: At program point L14-2(lines 14 18) the Hoare annotation is: true [2020-07-01 12:45:39,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:45:39 BasicIcfg [2020-07-01 12:45:39,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:45:39,675 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:45:39,675 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:45:39,678 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:45:39,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:45:39,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:45:38" (1/5) ... [2020-07-01 12:45:39,680 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b38213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:45:39,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:45:39" (2/5) ... [2020-07-01 12:45:39,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b38213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:45:39,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:45:39" (3/5) ... [2020-07-01 12:45:39,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b38213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:45:39,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:45:39" (4/5) ... [2020-07-01 12:45:39,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b38213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:45:39, skipping insertion in model container [2020-07-01 12:45:39,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:45:39,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:45:39" (5/5) ... [2020-07-01 12:45:39,684 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:45:39,713 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:45:39,713 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:45:39,713 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:45:39,713 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:45:39,713 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:45:39,713 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:45:39,714 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:45:39,714 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:45:39,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:45:39,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:45:39,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:45:39,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:45:39,741 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:45:39,741 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:45:39,741 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:45:39,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 12:45:39,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:45:39,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:45:39,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:45:39,742 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:45:39,742 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:45:39,747 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~k~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~t~0=v_ULTIMATE.start_main_~t~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~t~0] 4#L14-2true [2020-07-01 12:45:39,748 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [22] L14-2-->L14-2: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 100) (<= v_ULTIMATE.start_main_~j~0_8 v_ULTIMATE.start_main_~k~0_8) (= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~j~0_8) (= v_ULTIMATE.start_main_~k~0_7 (+ v_ULTIMATE.start_main_~k~0_8 (- 1))) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~i~0_7 1))) InVars {ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~k~0=v_ULTIMATE.start_main_~k~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0] 4#L14-2true [2020-07-01 12:45:39,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:45:39,754 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-07-01 12:45:39,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:45:39,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847519327] [2020-07-01 12:45:39,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:45:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,838 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:45:39,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:45:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-07-01 12:45:39,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:45:39,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607875771] [2020-07-01 12:45:39,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:45:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:45:39,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:45:39,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2020-07-01 12:45:39,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:45:39,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832866317] [2020-07-01 12:45:39,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:45:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:45:39,896 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:45:39,948 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:45:39,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:45:39,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:45:39,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:45:39,950 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:45:39,950 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:39,950 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:45:39,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:45:39,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:45:39,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:45:39,951 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:45:39,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:39,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:39,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:40,106 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:45:40,106 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:40,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:45:40,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:45:40,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:45:40,124 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:40,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:45:40,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:45:40,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:45:40,164 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:40,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:45:40,197 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:45:40,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:45:40,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:45:52,286 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-07-01 12:45:52,292 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:45:52,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:45:52,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:45:52,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:45:52,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:45:52,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:45:52,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:45:52,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:45:52,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:45:52,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:45:52,293 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:45:52,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:52,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:52,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:45:52,382 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:45:52,388 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:45:52,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:45:52,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:45:52,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:45:52,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:45:52,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:45:52,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:45:52,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:45:52,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:45:52,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:45:52,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:45:52,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:45:52,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:45:52,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:45:52,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:45:52,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:45:52,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:45:52,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:45:52,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:45:52,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:45:52,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:45:52,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:45:52,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:45:52,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:45:52,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:45:52,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:45:52,507 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:45:52,507 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:45:52,514 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:45:52,514 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:45:52,514 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:45:52,515 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~k~0 - 1*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-07-01 12:45:52,550 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:45:52,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:45:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:45:52,588 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:45:52,589 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:45:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:45:52,599 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:45:52,599 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:45:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:45:52,612 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:45:52,617 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:45:52,618 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 12:45:52,636 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-07-01 12:45:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:45:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:45:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-07-01 12:45:52,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 12:45:52,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:45:52,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:45:52,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:45:52,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:45:52,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:45:52,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-07-01 12:45:52,646 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:45:52,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-07-01 12:45:52,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:45:52,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:45:52,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:45:52,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:45:52,651 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:45:52,652 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:45:52,652 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:45:52,652 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:45:52,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:45:52,652 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:45:52,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:45:52,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:45:52 BasicIcfg [2020-07-01 12:45:52,658 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:45:52,661 INFO L168 Benchmark]: Toolchain (without parser) took 13745.79 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 561.5 MB in the beginning and 528.2 MB in the end (delta: 33.2 MB). Peak memory consumption was 77.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,661 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:45:52,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.99 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 561.5 MB in the beginning and 658.6 MB in the end (delta: -97.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.25 ms. Allocated memory is still 693.6 MB. Free memory was 657.5 MB in the beginning and 656.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,663 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 ms. Allocated memory is still 693.6 MB. Free memory was 656.4 MB in the beginning and 655.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,664 INFO L168 Benchmark]: RCFGBuilder took 213.07 ms. Allocated memory is still 693.6 MB. Free memory was 655.3 MB in the beginning and 641.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,665 INFO L168 Benchmark]: BlockEncodingV2 took 67.74 ms. Allocated memory is still 693.6 MB. Free memory was 641.5 MB in the beginning and 636.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,665 INFO L168 Benchmark]: TraceAbstraction took 143.84 ms. Allocated memory is still 693.6 MB. Free memory was 636.2 MB in the beginning and 627.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,666 INFO L168 Benchmark]: BuchiAutomizer took 12983.29 ms. Allocated memory is still 693.6 MB. Free memory was 627.5 MB in the beginning and 528.2 MB in the end (delta: 99.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:45:52,670 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 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 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.99 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 561.5 MB in the beginning and 658.6 MB in the end (delta: -97.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.25 ms. Allocated memory is still 693.6 MB. Free memory was 657.5 MB in the beginning and 656.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.78 ms. Allocated memory is still 693.6 MB. Free memory was 656.4 MB in the beginning and 655.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 213.07 ms. Allocated memory is still 693.6 MB. Free memory was 655.3 MB in the beginning and 641.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 67.74 ms. Allocated memory is still 693.6 MB. Free memory was 641.5 MB in the beginning and 636.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 143.84 ms. Allocated memory is still 693.6 MB. Free memory was 636.2 MB in the beginning and 627.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 12983.29 ms. Allocated memory is still 693.6 MB. Free memory was 627.5 MB in the beginning and 528.2 MB in the end (delta: 99.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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 k + -1 * j + 1 and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 12.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:45:35.130 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_RwcEhP/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:45:53.105 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check