NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:34:24,133 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:34:24,135 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:34:24,147 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:34:24,147 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:34:24,148 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:34:24,149 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:34:24,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:34:24,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:34:24,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:34:24,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:34:24,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:34:24,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:34:24,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:34:24,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:34:24,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:34:24,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:34:24,161 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:34:24,163 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:34:24,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:34:24,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:34:24,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:34:24,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:34:24,169 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:34:24,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:34:24,170 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:34:24,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:34:24,171 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:34:24,171 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:34:24,172 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:34:24,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:34:24,173 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:34:24,174 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:34:24,174 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:34:24,175 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:34:24,175 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:34:24,175 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:34:24,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:34:24,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:34:24,177 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 22:34:24,193 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:34:24,193 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:34:24,194 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:34:24,194 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:34:24,194 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:34:24,195 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:34:24,195 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:34:24,195 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:34:24,195 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:34:24,195 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:34:24,195 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:34:24,196 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:34:24,196 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:34:24,196 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:34:24,196 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:24,196 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:34:24,196 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:34:24,197 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:34:24,197 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:34:24,197 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:34:24,197 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:34:24,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:34:24,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:34:24,198 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:34:24,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:34:24,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:34:24,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:34:24,198 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:34:24,199 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:34:24,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:34:24,238 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:34:24,242 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:34:24,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:34:24,243 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:34:24,244 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:34:24,311 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/0267828ba5c74e4689ce591290786948/FLAG4cc6c666f !SESSION 2020-06-21 22:34:21.785 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-21 22:34:24.587 !MESSAGE Indexed 'FLAG4cc6c666f' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-21 22:34:24,657 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:34:24,657 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:34:24,664 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/0267828ba5c74e4689ce591290786948/FLAG4cc6c666f [2020-06-21 22:34:25,111 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/0267828ba5c74e4689ce591290786948 [2020-06-21 22:34:25,122 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:34:25,124 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:34:25,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:34:25,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:34:25,128 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:34:25,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553115f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:34:25,156 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:34:25,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:34:25,316 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:34:25,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:34:25,409 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:34:25,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25 WrapperNode [2020-06-21 22:34:25,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:34:25,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:34:25,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:34:25,411 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:34:25,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:34:25,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:34:25,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:34:25,449 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:34:25,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:34:25,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:34:25,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:34:25,470 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:34:25,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:34:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:34:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:34:25,677 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:34:25,678 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:34:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:34:25 BoogieIcfgContainer [2020-06-21 22:34:25,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:34:25,680 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:34:25,681 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:34:25,683 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:34:25,684 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:34:25" (1/1) ... [2020-06-21 22:34:25,700 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-21 22:34:25,702 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:34:25,703 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:34:25,703 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:34:25,704 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:34:25,706 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:34:25,707 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:34:25,707 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:34:25,722 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:34:25,730 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-21 22:34:25,735 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:34:25,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:34:25,749 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 22:34:25,751 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 22:34:25,753 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:34:25,753 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:34:25,757 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 22:34:25,758 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:34:25,758 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:34:25,758 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:34:25,759 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:34:25,759 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:34:25,759 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-21 22:34:25,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:34:25 BasicIcfg [2020-06-21 22:34:25,760 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:34:25,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:34:25,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:34:25,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:34:25,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:34:25" (1/4) ... [2020-06-21 22:34:25,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3f9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (2/4) ... [2020-06-21 22:34:25,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3f9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:34:25" (3/4) ... [2020-06-21 22:34:25,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3f9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:34:25" (4/4) ... [2020-06-21 22:34:25,768 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:34:25,778 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:34:25,785 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 22:34:25,802 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 22:34:25,831 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:34:25,832 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:34:25,832 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:34:25,832 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:34:25,832 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:34:25,832 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:34:25,832 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:34:25,832 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:34:25,833 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:34:25,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-21 22:34:25,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 22:34:25,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-21 22:34:25,904 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 19) the Hoare annotation is: true [2020-06-21 22:34:25,904 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 22:34:25,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:34:25 BasicIcfg [2020-06-21 22:34:25,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:34:25,912 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:34:25,912 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:34:25,916 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:34:25,916 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:34:25,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 10:34:25" (1/5) ... [2020-06-21 22:34:25,917 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14740afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,917 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:34:25,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:34:25" (2/5) ... [2020-06-21 22:34:25,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14740afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,918 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:34:25,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:34:25" (3/5) ... [2020-06-21 22:34:25,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14740afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,919 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:34:25,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:34:25" (4/5) ... [2020-06-21 22:34:25,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14740afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:34:25, skipping insertion in model container [2020-06-21 22:34:25,919 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:34:25,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:34:25" (5/5) ... [2020-06-21 22:34:25,921 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:34:25,948 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:34:25,949 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 22:34:25,949 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 22:34:25,949 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:34:25,949 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:34:25,949 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:34:25,949 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 22:34:25,950 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:34:25,950 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 22:34:25,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:34:25,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:34:25,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:34:25,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:34:25,977 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:34:25,977 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:34:25,977 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 22:34:25,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:34:25,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:34:25,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:34:25,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:34:25,978 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:34:25,978 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:34:25,983 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [36] ULTIMATE.startENTRY-->L17-2: Formula: (<= 5 v_ULTIMATE.start_main_~y~0_8) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_7|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-21 22:34:25,984 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [25] L17-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_5)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L17-2true [2020-06-21 22:34:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:34:25,990 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2020-06-21 22:34:25,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:34:25,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:34:26,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:34:26,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:34:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-21 22:34:26,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:34:26,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:34:26,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:34:26,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:34:26,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2102, now seen corresponding path program 1 times [2020-06-21 22:34:26,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:34:26,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:34:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:34:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:34:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:34:26,118 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:34:26,120 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:34:26,120 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:34:26,120 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:34:26,120 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:34:26,120 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,121 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:34:26,121 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:34:26,121 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 22:34:26,121 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:34:26,121 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:34:26,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,189 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:34:26,189 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,195 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,195 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,227 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:34:26,228 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=-7}, {ULTIMATE.start_main_~y~0=6}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,276 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,276 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,303 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,303 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-21 22:34:26,310 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:34:26,311 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:34:26,311 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:34:26,311 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:34:26,311 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:34:26,311 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,311 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:34:26,311 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:34:26,312 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-21 22:34:26,312 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:34:26,312 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:34:26,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:34:26,383 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:34:26,383 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,386 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,390 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,390 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,422 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,449 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,449 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,454 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,454 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,458 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,458 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,486 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,486 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:34:26,517 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,536 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,536 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=5} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=7}, {ULTIMATE.start_main_~y~0=-8}] Lambdas: [8, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:34:26,563 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:34:26,564 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:34:26,567 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:34:26,568 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-21 22:34:26,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:34:26 BasicIcfg [2020-06-21 22:34:26,626 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:34:26,626 INFO L168 Benchmark]: Toolchain (without parser) took 1503.73 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 565.0 MB in the beginning and 545.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,628 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 22:34:26,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.71 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 564.0 MB in the beginning and 644.6 MB in the end (delta: -80.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 679.5 MB. Free memory was 644.6 MB in the beginning and 643.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,630 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 ms. Allocated memory is still 679.5 MB. Free memory was 643.5 MB in the beginning and 642.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,631 INFO L168 Benchmark]: RCFGBuilder took 210.75 ms. Allocated memory is still 679.5 MB. Free memory was 642.4 MB in the beginning and 628.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,632 INFO L168 Benchmark]: BlockEncodingV2 took 79.55 ms. Allocated memory is still 679.5 MB. Free memory was 628.8 MB in the beginning and 623.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,632 INFO L168 Benchmark]: TraceAbstraction took 150.96 ms. Allocated memory is still 679.5 MB. Free memory was 623.4 MB in the beginning and 614.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,633 INFO L168 Benchmark]: BuchiAutomizer took 713.62 ms. Allocated memory is still 679.5 MB. Free memory was 613.7 MB in the beginning and 545.2 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 50.3 GB. [2020-06-21 22:34:26,637 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 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 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 285.71 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 564.0 MB in the beginning and 644.6 MB in the end (delta: -80.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 679.5 MB. Free memory was 644.6 MB in the beginning and 643.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.27 ms. Allocated memory is still 679.5 MB. Free memory was 643.5 MB in the beginning and 642.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 210.75 ms. Allocated memory is still 679.5 MB. Free memory was 642.4 MB in the beginning and 628.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.55 ms. Allocated memory is still 679.5 MB. Free memory was 628.8 MB in the beginning and 623.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.96 ms. Allocated memory is still 679.5 MB. Free memory was 623.4 MB in the beginning and 614.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 713.62 ms. Allocated memory is still 679.5 MB. Free memory was 613.7 MB in the beginning and 545.2 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=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 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ULTIMATE.start_main_~y~0=0, |ULTIMATE.start_main_#t~nondet1|=0, ULTIMATE.start_main_~x~0=0, |ULTIMATE.start_main_#res|=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525e680=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7599707e=0, x=0, y=5} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525e680=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7599707e=0, x=0, y=4} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525e680=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7599707e=0, x=0, y=3} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525e680=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7599707e=0, x=0, y=2} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525e680=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7599707e=0, x=0, y=1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [8, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND FALSE !(y < 5) Loop: [L17] COND TRUE x >= 0 [L18] y -= 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 22:34:26.871 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check