YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:05:26,612 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:05:26,614 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:05:26,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:05:26,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:05:26,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:05:26,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:05:26,629 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:05:26,630 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:05:26,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:05:26,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:05:26,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:05:26,633 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:05:26,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:05:26,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:05:26,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:05:26,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:05:26,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:05:26,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:05:26,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:05:26,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:05:26,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:05:26,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:05:26,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:05:26,646 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:05:26,647 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:05:26,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:05:26,648 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:05:26,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:05:26,649 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:05:26,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:05:26,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:05:26,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:05:26,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:05:26,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:05:26,653 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:05:26,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:05:26,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:05:26,655 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:05:26,655 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 09:05:26,669 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:05:26,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:05:26,671 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:05:26,671 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:05:26,671 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:05:26,671 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:05:26,671 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:05:26,671 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:05:26,672 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:05:26,673 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:26,673 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:05:26,673 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:05:26,673 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:05:26,673 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:05:26,673 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:05:26,674 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:05:26,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:05:26,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:05:26,674 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:05:26,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:05:26,674 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:05:26,675 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:05:26,675 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:05:26,675 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:05:26,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:05:26,713 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:05:26,717 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:05:26,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:05:26,719 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:05:26,719 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:05:26,791 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/90f466edd2c14986b44fca924d29828c/FLAG9a5beee37 !SESSION 2020-06-22 09:05:24.291 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 09:05:27.070 !MESSAGE Indexed 'FLAG9a5beee37' (0 sources, 0 headers) in 0.016 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 09:05:27,154 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:05:27,154 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 09:05:27,161 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/90f466edd2c14986b44fca924d29828c/FLAG9a5beee37 [2020-06-22 09:05:27,619 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/90f466edd2c14986b44fca924d29828c [2020-06-22 09:05:27,631 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:05:27,632 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:05:27,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:05:27,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:05:27,637 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:05:27,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b49cc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27, skipping insertion in model container [2020-06-22 09:05:27,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:05:27,666 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:05:27,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:05:27,822 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:05:27,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:05:27,905 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:05:27,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27 WrapperNode [2020-06-22 09:05:27,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:05:27,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:05:27,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:05:27,907 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:05:27,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:05:27,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:05:27,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:05:27,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:05:27,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... [2020-06-22 09:05:27,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:05:27,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:05:27,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:05:27,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:05:27,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:05:28,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:05:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:05:28,156 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:05:28,157 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:05:28,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:05:28 BoogieIcfgContainer [2020-06-22 09:05:28,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:05:28,159 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:05:28,159 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:05:28,161 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:05:28,161 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:05:28" (1/1) ... [2020-06-22 09:05:28,175 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 09:05:28,177 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:05:28,178 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:05:28,178 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:05:28,179 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:05:28,180 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:05:28,181 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:05:28,181 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:05:28,196 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:05:28,203 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 09:05:28,208 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:05:28,209 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:05:28,219 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:05:28,221 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 09:05:28,222 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:05:28,222 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:05:28,227 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 09:05:28,227 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:05:28,228 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:05:28,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:05:28,228 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:05:28,228 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:05:28,228 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-06-22 09:05:28,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:05:28 BasicIcfg [2020-06-22 09:05:28,229 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:05:28,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:05:28,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:05:28,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:05:28,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:05:27" (1/4) ... [2020-06-22 09:05:28,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d289499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (2/4) ... [2020-06-22 09:05:28,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d289499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:05:28" (3/4) ... [2020-06-22 09:05:28,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d289499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:05:28" (4/4) ... [2020-06-22 09:05:28,238 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:05:28,247 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:05:28,255 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:05:28,274 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:05:28,303 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:05:28,304 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:05:28,304 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:05:28,305 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:05:28,305 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:05:28,305 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:05:28,305 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:05:28,305 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:05:28,305 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:05:28,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 09:05:28,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:05:28,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 09:05:28,376 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:05:28,376 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 17) no Hoare annotation was computed. [2020-06-22 09:05:28,376 INFO L448 ceAbstractionStarter]: For program point L13-2(lines 13 17) no Hoare annotation was computed. [2020-06-22 09:05:28,377 INFO L451 ceAbstractionStarter]: At program point L12-2(lines 12 19) the Hoare annotation is: true [2020-06-22 09:05:28,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:05:28 BasicIcfg [2020-06-22 09:05:28,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:05:28,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:05:28,386 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:05:28,389 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:05:28,390 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:05:28,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:05:27" (1/5) ... [2020-06-22 09:05:28,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@600f0e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,391 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:05:28,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:05:27" (2/5) ... [2020-06-22 09:05:28,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@600f0e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,392 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:05:28,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:05:28" (3/5) ... [2020-06-22 09:05:28,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@600f0e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,392 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:05:28,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:05:28" (4/5) ... [2020-06-22 09:05:28,393 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@600f0e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:05:28, skipping insertion in model container [2020-06-22 09:05:28,393 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:05:28,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:05:28" (5/5) ... [2020-06-22 09:05:28,394 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:05:28,422 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:05:28,423 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:05:28,423 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:05:28,423 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:05:28,423 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:05:28,423 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:05:28,423 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:05:28,423 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:05:28,424 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:05:28,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:05:28,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:05:28,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:05:28,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:05:28,449 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:05:28,449 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:05:28,449 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:05:28,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 09:05:28,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 09:05:28,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:05:28,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:05:28,451 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:05:28,451 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 09:05:28,456 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_10) (= 0 v_ULTIMATE.start_main_~c~0_8)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~x~0] 3#L12-2true [2020-06-22 09:05:28,456 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true [33] L12-2-->L13: Formula: (< 0 v_ULTIMATE.start_main_~x~0_11) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[] 6#L13true [40] L13-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 v_ULTIMATE.start_main_~y~0_1) (< v_ULTIMATE.start_main_~y~0_1 v_ULTIMATE.start_main_~x~0_2)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L13-2true [39] L13-2-->L12-2: Formula: (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0] 3#L12-2true [2020-06-22 09:05:28,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:05:28,462 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-06-22 09:05:28,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:05:28,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:05:28,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:05:28,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:05:28,535 INFO L82 PathProgramCache]: Analyzing trace with hash 62783, now seen corresponding path program 1 times [2020-06-22 09:05:28,535 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:05:28,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:05:28,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:05:28,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:05:28,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2386481, now seen corresponding path program 1 times [2020-06-22 09:05:28,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:05:28,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:05:28,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:05:28,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:05:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:05:28,616 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:05:28,617 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:05:28,617 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:05:28,617 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:05:28,617 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:05:28,617 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:28,618 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:05:28,618 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:05:28,618 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:05:28,618 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:05:28,618 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:05:28,638 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 09:05:28,647 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 09:05:28,651 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 09:05:28,658 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 09:05:28,739 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:05:28,740 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:28,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:05:28,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:05:28,778 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:05:28,779 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 09:05:28,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:05:28,785 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:05:28,812 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:05:28,812 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 09:05:28,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:05:28,817 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:28,850 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:05:28,850 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:05:28,885 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:05:28,885 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:28,914 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:05:28,914 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:05:28,949 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:05:28,949 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:05:29,095 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:05:29,098 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:05:29,111 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:05:29,111 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:05:29,111 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:05:29,111 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:05:29,112 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:05:29,112 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:05:29,112 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:05:29,112 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:05:29,112 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:05:29,112 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:05:29,114 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 09:05:29,118 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 09:05:29,122 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 09:05:29,128 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 09:05:29,197 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:05:29,203 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:05:29,205 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 09:05:29,207 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:05:29,207 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:05:29,207 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:05:29,207 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:05:29,212 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:05:29,212 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:05:29,220 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:05:29,221 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 09:05:29,221 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:05:29,222 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:05:29,222 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:05:29,222 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:05:29,224 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:05:29,224 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:05:29,233 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:05:29,233 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 09:05:29,234 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:05:29,234 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:05:29,235 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:05:29,235 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:05:29,235 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:05:29,236 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:05:29,236 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:05:29,240 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:05:29,241 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 09:05:29,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:05:29,241 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:05:29,242 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:05:29,242 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:05:29,242 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:05:29,243 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:05:29,243 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:05:29,249 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:05:29,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:05:29,256 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 09:05:29,258 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:05:29,258 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:05:29,259 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:05:29,259 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 09:05:29,260 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:05:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:05:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:05:29,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:05:29,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:05:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:05:29,301 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 09:05:29,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:05:29,342 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 09:05:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:05:29,393 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 09:05:29,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:05:29,400 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 09:05:29,405 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 09:05:29,406 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 09:05:29,443 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 8 states and 9 transitions. Complement of second has 6 states. [2020-06-22 09:05:29,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-22 09:05:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:05:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-06-22 09:05:29,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 09:05:29,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:05:29,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 09:05:29,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:05:29,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 09:05:29,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:05:29,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2020-06-22 09:05:29,461 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:05:29,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-06-22 09:05:29,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:05:29,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:05:29,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:05:29,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:05:29,466 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:05:29,466 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:05:29,466 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:05:29,466 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:05:29,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:05:29,466 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:05:29,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:05:29,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:05:29 BasicIcfg [2020-06-22 09:05:29,472 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:05:29,473 INFO L168 Benchmark]: Toolchain (without parser) took 1841.21 ms. Allocated memory was 649.6 MB in the beginning and 652.2 MB in the end (delta: 2.6 MB). Free memory was 565.2 MB in the beginning and 489.0 MB in the end (delta: 76.2 MB). Peak memory consumption was 78.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,475 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:05:29,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.52 ms. Allocated memory was 649.6 MB in the beginning and 652.2 MB in the end (delta: 2.6 MB). Free memory was 564.1 MB in the beginning and 617.3 MB in the end (delta: -53.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.08 ms. Allocated memory is still 652.2 MB. Free memory was 617.3 MB in the beginning and 616.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,477 INFO L168 Benchmark]: Boogie Preprocessor took 18.57 ms. Allocated memory is still 652.2 MB. Free memory was 616.2 MB in the beginning and 615.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,477 INFO L168 Benchmark]: RCFGBuilder took 199.66 ms. Allocated memory is still 652.2 MB. Free memory was 615.2 MB in the beginning and 601.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,478 INFO L168 Benchmark]: BlockEncodingV2 took 70.63 ms. Allocated memory is still 652.2 MB. Free memory was 601.6 MB in the beginning and 594.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,478 INFO L168 Benchmark]: TraceAbstraction took 155.03 ms. Allocated memory is still 652.2 MB. Free memory was 594.8 MB in the beginning and 586.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,479 INFO L168 Benchmark]: BuchiAutomizer took 1086.55 ms. Allocated memory is still 652.2 MB. Free memory was 586.2 MB in the beginning and 489.0 MB in the end (delta: 97.2 MB). Peak memory consumption was 97.2 MB. Max. memory is 50.3 GB. [2020-06-22 09:05:29,483 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 4 locations, 5 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 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 272.52 ms. Allocated memory was 649.6 MB in the beginning and 652.2 MB in the end (delta: 2.6 MB). Free memory was 564.1 MB in the beginning and 617.3 MB in the end (delta: -53.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.08 ms. Allocated memory is still 652.2 MB. Free memory was 617.3 MB in the beginning and 616.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.57 ms. Allocated memory is still 652.2 MB. Free memory was 616.2 MB in the beginning and 615.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 199.66 ms. Allocated memory is still 652.2 MB. Free memory was 615.2 MB in the beginning and 601.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.63 ms. Allocated memory is still 652.2 MB. Free memory was 601.6 MB in the beginning and 594.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.03 ms. Allocated memory is still 652.2 MB. Free memory was 594.8 MB in the beginning and 586.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1086.55 ms. Allocated memory is still 652.2 MB. Free memory was 586.2 MB in the beginning and 489.0 MB in the end (delta: 97.2 MB). Peak memory consumption was 97.2 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: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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, 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 x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 5 SDtfs, 7 SDslu, 4 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq136 hnf93 smp100 dnf100 smp100 tf114 neg100 sie125 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 09:05:29.712 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check