NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:19:09,487 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:19:09,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:19:09,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:19:09,501 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:19:09,501 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:19:09,503 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:19:09,504 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:19:09,506 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:19:09,506 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:19:09,507 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:19:09,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:19:09,508 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:19:09,509 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:19:09,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:19:09,511 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:19:09,512 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:19:09,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:19:09,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:19:09,517 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:19:09,518 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:19:09,519 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:19:09,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:19:09,521 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:19:09,521 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:19:09,522 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:19:09,522 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:19:09,523 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:19:09,523 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:19:09,524 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:19:09,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:19:09,525 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:19:09,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:19:09,527 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:19:09,527 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:19:09,527 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:19:09,528 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:19:09,528 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:19:09,529 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:19:09,529 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 02:19:09,543 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:19:09,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:19:09,545 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:19:09,545 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:19:09,545 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:19:09,545 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:19:09,545 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:19:09,546 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:19:09,546 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:19:09,547 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:09,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:19:09,547 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:19:09,547 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:19:09,547 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:19:09,547 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:19:09,548 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:19:09,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:19:09,548 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:19:09,548 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:19:09,548 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:19:09,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:19:09,549 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:19:09,549 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:19:09,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:19:09,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:19:09,588 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:19:09,592 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:19:09,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:19:09,593 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:19:09,594 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:19:09,665 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/13be180e7fb649119079ee46dd3c7c75/FLAG2f09da283 !SESSION 2020-06-22 02:19:07.189 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 02:19:09.944 !MESSAGE Indexed 'FLAG2f09da283' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 02:19:10,036 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:19:10,037 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:19:10,044 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/13be180e7fb649119079ee46dd3c7c75/FLAG2f09da283 [2020-06-22 02:19:10,469 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/13be180e7fb649119079ee46dd3c7c75 [2020-06-22 02:19:10,480 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:19:10,482 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:19:10,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:19:10,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:19:10,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:19:10,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a749778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10, skipping insertion in model container [2020-06-22 02:19:10,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:19:10,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:19:10,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:19:10,674 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:19:10,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:19:10,758 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:19:10,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10 WrapperNode [2020-06-22 02:19:10,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:19:10,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:19:10,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:19:10,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:19:10,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:19:10,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:19:10,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:19:10,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:19:10,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... [2020-06-22 02:19:10,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:19:10,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:19:10,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:19:10,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:19:10,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:19:10,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:19:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:19:11,020 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:19:11,020 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 02:19:11,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:11 BoogieIcfgContainer [2020-06-22 02:19:11,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:19:11,022 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:19:11,022 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:19:11,024 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:19:11,025 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:11" (1/1) ... [2020-06-22 02:19:11,039 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-06-22 02:19:11,040 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:19:11,041 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:19:11,042 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:19:11,042 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:19:11,044 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:19:11,045 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:19:11,045 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:19:11,062 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:19:11,079 INFO L200 BlockEncoder]: SBE split 3 edges [2020-06-22 02:19:11,084 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 02:19:11,085 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:19:11,097 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:19:11,099 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:19:11,101 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:19:11,101 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:19:11,101 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:19:11,102 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:19:11,102 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 12 edges [2020-06-22 02:19:11,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11 BasicIcfg [2020-06-22 02:19:11,103 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:19:11,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:19:11,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:19:11,107 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:19:11,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:19:10" (1/4) ... [2020-06-22 02:19:11,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a3245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (2/4) ... [2020-06-22 02:19:11,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a3245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:11" (3/4) ... [2020-06-22 02:19:11,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a3245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11" (4/4) ... [2020-06-22 02:19:11,111 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:19:11,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:19:11,129 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:19:11,146 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:19:11,173 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:19:11,174 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:19:11,174 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:19:11,174 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:19:11,175 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:19:11,175 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:19:11,175 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:19:11,175 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:19:11,175 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:19:11,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-06-22 02:19:11,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:19:11,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-06-22 02:19:11,247 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 27) no Hoare annotation was computed. [2020-06-22 02:19:11,247 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:19:11,248 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 31) the Hoare annotation is: true [2020-06-22 02:19:11,248 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 23 25) the Hoare annotation is: true [2020-06-22 02:19:11,248 INFO L448 ceAbstractionStarter]: For program point L23-3(lines 17 27) no Hoare annotation was computed. [2020-06-22 02:19:11,249 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-06-22 02:19:11,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11 BasicIcfg [2020-06-22 02:19:11,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:19:11,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:19:11,257 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:19:11,261 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:19:11,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:19:10" (1/5) ... [2020-06-22 02:19:11,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f577a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,262 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:19:10" (2/5) ... [2020-06-22 02:19:11,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f577a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,263 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:19:11" (3/5) ... [2020-06-22 02:19:11,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f577a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,264 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:19:11" (4/5) ... [2020-06-22 02:19:11,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f577a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:11, skipping insertion in model container [2020-06-22 02:19:11,264 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:19:11,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:19:11" (5/5) ... [2020-06-22 02:19:11,266 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:19:11,292 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:19:11,292 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:19:11,292 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:19:11,292 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:19:11,293 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:19:11,293 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:19:11,293 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:19:11,293 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:19:11,293 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:19:11,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 02:19:11,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 02:19:11,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:11,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:11,320 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:19:11,320 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:11,320 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:19:11,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-06-22 02:19:11,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-06-22 02:19:11,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:11,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:11,322 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:19:11,322 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 02:19:11,327 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [45] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 5#L13-2true [2020-06-22 02:19:11,327 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true [60] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~xtmp~0_5 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 6#L17true [62] L17-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 0) (<= v_ULTIMATE.start_main_~x~0_8 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 8#L23-3true [53] L23-3-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~tmp~0_4) (= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~xtmp~0_4)) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L13-2true [2020-06-22 02:19:11,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,333 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 1 times [2020-06-22 02:19:11,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,403 INFO L82 PathProgramCache]: Analyzing trace with hash 89426, now seen corresponding path program 1 times [2020-06-22 02:19:11,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:11,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2323751, now seen corresponding path program 1 times [2020-06-22 02:19:11,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:11,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:11,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:11,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:11,491 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:11,492 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:11,492 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:11,492 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:11,492 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:19:11,492 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,493 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:11,493 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:11,493 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:19:11,493 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:11,493 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:11,512 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 02:19:11,522 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 02:19:11,526 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 02:19:11,683 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:11,684 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) [2020-06-22 02:19:11,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,690 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,723 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,724 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/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,731 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:11,758 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 02:19:11,759 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/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,763 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:19:11,764 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:19:11,800 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:19:11,800 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:19:12,160 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:19:12,163 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:19:12,164 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:19:12,164 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:19:12,164 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:19:12,164 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:19:12,164 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:19:12,164 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:19:12,164 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:19:12,164 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 02:19:12,165 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:19:12,165 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:19:12,167 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 02:19:12,187 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 02:19:12,191 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 02:19:12,260 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:19:12,266 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:19:12,268 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 02:19:12,270 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:19:12,270 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:19:12,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:19:12,271 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:19:12,271 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:19:12,274 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:19:12,274 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:19:12,292 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:19:12,302 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:19:12,302 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 02:19:12,305 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:19:12,305 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:19:12,306 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:19:12,306 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-06-22 02:19:12,307 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:19:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:12,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:19:12,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:19:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:19:12,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2020-06-22 02:19:12,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:19:12,405 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 02:19:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,455 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 02:19:12,455 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 02:19:12,461 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-22 02:19:12,462 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 4 states. [2020-06-22 02:19:12,715 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 4 states. Result 54 states and 114 transitions. Complement of second has 17 states. [2020-06-22 02:19:12,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 7 non-accepting loop states 2 accepting loop states [2020-06-22 02:19:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 02:19:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 62 transitions. [2020-06-22 02:19:12,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 62 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 02:19:12,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:12,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 62 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 02:19:12,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:12,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 62 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 02:19:12,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:19:12,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 114 transitions. [2020-06-22 02:19:12,736 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-06-22 02:19:12,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 40 states and 79 transitions. [2020-06-22 02:19:12,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-06-22 02:19:12,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-06-22 02:19:12,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 79 transitions. [2020-06-22 02:19:12,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 02:19:12,744 INFO L706 BuchiCegarLoop]: Abstraction has 40 states and 79 transitions. [2020-06-22 02:19:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 79 transitions. [2020-06-22 02:19:12,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 20. [2020-06-22 02:19:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-06-22 02:19:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 41 transitions. [2020-06-22 02:19:12,777 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 41 transitions. [2020-06-22 02:19:12,777 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 41 transitions. [2020-06-22 02:19:12,777 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:19:12,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 41 transitions. [2020-06-22 02:19:12,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-22 02:19:12,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:19:12,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:19:12,779 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 02:19:12,779 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 02:19:12,780 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~xtmp~0] 126#L13-2 [60] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~xtmp~0_5 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 131#L17 [57] L17-->L20: Formula: (and (> v_ULTIMATE.start_main_~x~0_9 0) (> v_ULTIMATE.start_main_~y~0_11 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 134#L20 [2020-06-22 02:19:12,781 INFO L796 eck$LassoCheckResult]: Loop: 134#L20 [54] L20-->L23-3: Formula: (and (= v_ULTIMATE.start_main_~y~0_12 0) (= v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~y~0_13)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 124#L23-3 [53] L23-3-->L13-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~tmp~0_4) (= v_ULTIMATE.start_main_~y~0_6 v_ULTIMATE.start_main_~xtmp~0_4)) InVars {ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_4, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 136#L13-2 [60] L13-2-->L17: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~tmp~0_5 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~xtmp~0_5 v_ULTIMATE.start_main_~x~0_7)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~tmp~0=v_ULTIMATE.start_main_~tmp~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~xtmp~0=v_ULTIMATE.start_main_~xtmp~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~tmp~0, ULTIMATE.start_main_~xtmp~0] 141#L17 [57] L17-->L20: Formula: (and (> v_ULTIMATE.start_main_~x~0_9 0) (> v_ULTIMATE.start_main_~y~0_11 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[] 134#L20 [2020-06-22 02:19:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash 74953, now seen corresponding path program 1 times [2020-06-22 02:19:12,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:12,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:12,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:12,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:12,791 INFO L82 PathProgramCache]: Analyzing trace with hash 2585085, now seen corresponding path program 1 times [2020-06-22 02:19:12,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:12,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:12,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:12,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:19:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 502854341, now seen corresponding path program 1 times [2020-06-22 02:19:12,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:19:12,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:19:12,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:19:12,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:19:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:19:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:19:12 BasicIcfg [2020-06-22 02:19:12,937 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:19:12,938 INFO L168 Benchmark]: Toolchain (without parser) took 2456.54 ms. Allocated memory was 649.6 MB in the beginning and 680.5 MB in the end (delta: 30.9 MB). Free memory was 565.0 MB in the beginning and 479.3 MB in the end (delta: 85.7 MB). Peak memory consumption was 116.6 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,940 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 02:19:12,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.98 ms. Allocated memory was 649.6 MB in the beginning and 680.5 MB in the end (delta: 30.9 MB). Free memory was 563.9 MB in the beginning and 647.3 MB in the end (delta: -83.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 680.5 MB. Free memory was 647.3 MB in the beginning and 644.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,943 INFO L168 Benchmark]: Boogie Preprocessor took 19.35 ms. Allocated memory is still 680.5 MB. Free memory was 644.4 MB in the beginning and 643.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,943 INFO L168 Benchmark]: RCFGBuilder took 208.35 ms. Allocated memory is still 680.5 MB. Free memory was 643.4 MB in the beginning and 627.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,944 INFO L168 Benchmark]: BlockEncodingV2 took 80.78 ms. Allocated memory is still 680.5 MB. Free memory was 627.4 MB in the beginning and 622.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,945 INFO L168 Benchmark]: TraceAbstraction took 153.34 ms. Allocated memory is still 680.5 MB. Free memory was 622.0 MB in the beginning and 613.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,945 INFO L168 Benchmark]: BuchiAutomizer took 1679.74 ms. Allocated memory is still 680.5 MB. Free memory was 612.3 MB in the beginning and 479.3 MB in the end (delta: 133.0 MB). Peak memory consumption was 133.0 MB. Max. memory is 50.3 GB. [2020-06-22 02:19:12,950 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 275.98 ms. Allocated memory was 649.6 MB in the beginning and 680.5 MB in the end (delta: 30.9 MB). Free memory was 563.9 MB in the beginning and 647.3 MB in the end (delta: -83.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 680.5 MB. Free memory was 647.3 MB in the beginning and 644.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.35 ms. Allocated memory is still 680.5 MB. Free memory was 644.4 MB in the beginning and 643.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 208.35 ms. Allocated memory is still 680.5 MB. Free memory was 643.4 MB in the beginning and 627.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 80.78 ms. Allocated memory is still 680.5 MB. Free memory was 627.4 MB in the beginning and 622.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.34 ms. Allocated memory is still 680.5 MB. Free memory was 622.0 MB in the beginning and 613.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1679.74 ms. Allocated memory is still 680.5 MB. Free memory was 612.3 MB in the beginning and 479.3 MB in the end (delta: 133.0 MB). Peak memory consumption was 133.0 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * x + 1 and consists of 10 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 55 SDslu, 18 SDs, 0 SdLazy, 84 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf88 smp100 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 20]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {xtmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4403e205=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31365398=0, x=1, y=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int x; [L7] int y; [L8] int tmp; [L9] int xtmp; [L10] x = __VERIFIER_nondet_int() [L11] y = __VERIFIER_nondet_int() [L13] COND TRUE y != 0 [L14] tmp = y [L15] xtmp = x [L17] COND FALSE !(x <= 0 || y <= 0) Loop: [L20] COND TRUE x == y [L21] y = 0 [L29] y = xtmp [L30] x = tmp [L13] COND TRUE y != 0 [L14] tmp = y [L15] xtmp = x [L17] COND FALSE !(x <= 0 || y <= 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 02:19:13.188 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check