YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 06:36:08,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 06:36:08,303 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 06:36:08,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 06:36:08,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 06:36:08,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 06:36:08,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 06:36:08,318 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 06:36:08,319 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 06:36:08,320 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 06:36:08,321 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 06:36:08,321 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 06:36:08,322 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 06:36:08,323 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 06:36:08,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 06:36:08,324 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 06:36:08,325 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 06:36:08,327 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 06:36:08,329 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 06:36:08,331 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 06:36:08,332 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 06:36:08,333 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 06:36:08,335 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 06:36:08,335 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 06:36:08,335 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 06:36:08,336 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 06:36:08,336 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 06:36:08,337 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 06:36:08,337 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 06:36:08,338 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 06:36:08,338 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 06:36:08,339 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 06:36:08,340 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 06:36:08,340 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 06:36:08,341 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 06:36:08,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 06:36:08,341 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 06:36:08,342 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 06:36:08,343 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 06:36:08,343 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 06:36:08,357 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 06:36:08,357 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 06:36:08,358 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 06:36:08,358 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 06:36:08,359 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 06:36:08,359 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:36:08,359 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 06:36:08,359 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 06:36:08,359 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 06:36:08,359 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 06:36:08,360 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 06:36:08,360 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 06:36:08,360 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 06:36:08,360 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 06:36:08,360 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:08,360 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 06:36:08,361 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 06:36:08,361 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 06:36:08,361 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 06:36:08,361 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 06:36:08,361 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 06:36:08,361 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 06:36:08,362 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 06:36:08,362 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 06:36:08,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 06:36:08,362 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 06:36:08,362 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 06:36:08,362 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 06:36:08,363 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 06:36:08,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 06:36:08,401 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 06:36:08,404 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 06:36:08,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 06:36:08,406 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 06:36:08,407 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:36:08,469 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/2a8306e363ea44a28544edac585aee17/FLAG3e69f1d54 !SESSION 2020-06-22 06:36:05.997 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 06:36:08.736 !MESSAGE Indexed 'FLAG3e69f1d54' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 06:36:08,817 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 06:36:08,818 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 06:36:08,824 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/2a8306e363ea44a28544edac585aee17/FLAG3e69f1d54 [2020-06-22 06:36:09,258 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/2a8306e363ea44a28544edac585aee17 [2020-06-22 06:36:09,269 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 06:36:09,271 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 06:36:09,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 06:36:09,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 06:36:09,275 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 06:36:09,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a8da9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09, skipping insertion in model container [2020-06-22 06:36:09,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 06:36:09,303 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 06:36:09,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:36:09,461 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 06:36:09,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 06:36:09,545 INFO L195 MainTranslator]: Completed translation [2020-06-22 06:36:09,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09 WrapperNode [2020-06-22 06:36:09,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 06:36:09,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 06:36:09,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 06:36:09,547 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 06:36:09,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 06:36:09,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 06:36:09,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 06:36:09,581 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 06:36:09,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 06:36:09,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 06:36:09,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 06:36:09,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 06:36:09,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (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 06:36:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 06:36:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 06:36:09,810 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 06:36:09,811 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 06:36:09,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:36:09 BoogieIcfgContainer [2020-06-22 06:36:09,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 06:36:09,812 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 06:36:09,813 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 06:36:09,815 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 06:36:09,815 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:36:09" (1/1) ... [2020-06-22 06:36:09,829 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-06-22 06:36:09,831 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 06:36:09,831 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 06:36:09,832 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 06:36:09,832 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 06:36:09,834 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 06:36:09,835 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 06:36:09,835 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 06:36:09,850 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 06:36:09,865 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 06:36:09,869 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 06:36:09,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:36:09,881 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 06:36:09,883 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 06:36:09,884 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:36:09,884 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:36:09,888 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 06:36:09,888 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:36:09,888 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 06:36:09,888 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 06:36:09,889 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 06:36:09,889 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 06:36:09,889 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2020-06-22 06:36:09,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:36:09 BasicIcfg [2020-06-22 06:36:09,890 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 06:36:09,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 06:36:09,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 06:36:09,895 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 06:36:09,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 06:36:09" (1/4) ... [2020-06-22 06:36:09,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8de720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:36:09, skipping insertion in model container [2020-06-22 06:36:09,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (2/4) ... [2020-06-22 06:36:09,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8de720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:36:09, skipping insertion in model container [2020-06-22 06:36:09,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:36:09" (3/4) ... [2020-06-22 06:36:09,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8de720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:36:09, skipping insertion in model container [2020-06-22 06:36:09,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:36:09" (4/4) ... [2020-06-22 06:36:09,899 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:36:09,908 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 06:36:09,916 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 06:36:09,933 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 06:36:09,960 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:36:09,961 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 06:36:09,961 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 06:36:09,961 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:36:09,961 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:36:09,961 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:36:09,962 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 06:36:09,962 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:36:09,962 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 06:36:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-06-22 06:36:09,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 06:36:09,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-06-22 06:36:10,031 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 06:36:10,032 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 15) no Hoare annotation was computed. [2020-06-22 06:36:10,051 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 15) no Hoare annotation was computed. [2020-06-22 06:36:10,051 INFO L451 ceAbstractionStarter]: At program point L10-2(lines 10 17) the Hoare annotation is: true [2020-06-22 06:36:10,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:36:10 BasicIcfg [2020-06-22 06:36:10,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 06:36:10,060 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 06:36:10,060 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 06:36:10,063 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 06:36:10,064 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:36:10,064 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 06:36:09" (1/5) ... [2020-06-22 06:36:10,065 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f78ab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:36:10, skipping insertion in model container [2020-06-22 06:36:10,065 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:36:10,065 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 06:36:09" (2/5) ... [2020-06-22 06:36:10,065 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f78ab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 06:36:10, skipping insertion in model container [2020-06-22 06:36:10,065 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:36:10,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:36:09" (3/5) ... [2020-06-22 06:36:10,066 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f78ab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:36:10, skipping insertion in model container [2020-06-22 06:36:10,066 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:36:10,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 06:36:09" (4/5) ... [2020-06-22 06:36:10,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f78ab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:36:10, skipping insertion in model container [2020-06-22 06:36:10,067 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 06:36:10,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:36:10" (5/5) ... [2020-06-22 06:36:10,068 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 06:36:10,094 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 06:36:10,095 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 06:36:10,095 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 06:36:10,095 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 06:36:10,095 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 06:36:10,095 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 06:36:10,095 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 06:36:10,096 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 06:36:10,096 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 06:36:10,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 06:36:10,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:10,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:36:10,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:36:10,121 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:36:10,121 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:36:10,121 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 06:36:10,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-06-22 06:36:10,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:10,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:36:10,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:36:10,122 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 06:36:10,122 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:36:10,127 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [55] ULTIMATE.startENTRY-->L10-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~x_2| |v_ULTIMATE.start_main_#t~nondet0_5|) (= |v_ULTIMATE.start_test_fun_#in~y_2| |v_ULTIMATE.start_main_#t~nondet1_5|) (< 0 v_ULTIMATE.start_test_fun_~x_12) (= v_ULTIMATE.start_test_fun_~y_7 |v_ULTIMATE.start_test_fun_#in~y_2|) (= |v_ULTIMATE.start_test_fun_#in~x_2| v_ULTIMATE.start_test_fun_~x_12) (< 0 v_ULTIMATE.start_test_fun_~y_7) (= v_ULTIMATE.start_test_fun_~c~0_7 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_5|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_12, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_8|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_7, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_2|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_2|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 5#L10-2true [2020-06-22 06:36:10,128 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [50] L10-2-->L11: Formula: (> v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 4#L11true [33] L11-->L11-2: Formula: (and (< v_ULTIMATE.start_test_fun_~y_5 v_ULTIMATE.start_test_fun_~x_8) (= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 6#L11-2true [44] L11-2-->L10-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 5#L10-2true [2020-06-22 06:36:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:10,134 INFO L82 PathProgramCache]: Analyzing trace with hash 86, now seen corresponding path program 1 times [2020-06-22 06:36:10,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:10,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:10,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:10,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:10,210 INFO L82 PathProgramCache]: Analyzing trace with hash 78908, now seen corresponding path program 1 times [2020-06-22 06:36:10,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:10,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:10,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:10,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:10,220 INFO L82 PathProgramCache]: Analyzing trace with hash 2611143, now seen corresponding path program 1 times [2020-06-22 06:36:10,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:10,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:10,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:10,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:10,280 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:36:10,281 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:36:10,282 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:36:10,282 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:36:10,282 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:36:10,282 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:10,282 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:36:10,282 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:36:10,282 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:36:10,283 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:36:10,283 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:36:10,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 06:36:10,324 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 06:36:10,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:36:10,389 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:10,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:36:10,396 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 [2020-06-22 06:36:10,432 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:36:10,432 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:36:10,594 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:36:10,596 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:36:10,596 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:36:10,597 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:36:10,597 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:36:10,597 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:36:10,597 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:36:10,597 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:36:10,597 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:36:10,597 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 06:36:10,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:36:10,598 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:36:10,599 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 06:36:10,611 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 06:36:10,667 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:36:10,673 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:36:10,675 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 06:36:10,676 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:36:10,676 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:36:10,677 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:36:10,677 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:36:10,677 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:36:10,681 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:36:10,681 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:36:10,689 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:36:10,699 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 06:36:10,699 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 06:36:10,701 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:36:10,701 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:36:10,702 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:36:10,703 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x) = 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-06-22 06:36:10,704 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:36:10,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:10,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:36:10,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:10,761 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 06:36:10,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:10,812 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 06:36:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:10,861 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 06:36:10,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:10,867 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 06:36:10,871 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-06-22 06:36:10,873 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-06-22 06:36:10,996 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 20 states and 32 transitions. Complement of second has 10 states. [2020-06-22 06:36:10,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-06-22 06:36:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 06:36:10,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 28 transitions. [2020-06-22 06:36:11,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 06:36:11,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 06:36:11,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 06:36:11,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 32 transitions. [2020-06-22 06:36:11,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:11,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 24 transitions. [2020-06-22 06:36:11,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-06-22 06:36:11,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-06-22 06:36:11,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 24 transitions. [2020-06-22 06:36:11,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 06:36:11,020 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-06-22 06:36:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 24 transitions. [2020-06-22 06:36:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2020-06-22 06:36:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 06:36:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2020-06-22 06:36:11,049 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 06:36:11,049 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-06-22 06:36:11,049 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 06:36:11,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2020-06-22 06:36:11,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:11,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:36:11,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:36:11,051 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 06:36:11,051 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:36:11,051 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY [55] ULTIMATE.startENTRY-->L10-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~x_2| |v_ULTIMATE.start_main_#t~nondet0_5|) (= |v_ULTIMATE.start_test_fun_#in~y_2| |v_ULTIMATE.start_main_#t~nondet1_5|) (< 0 v_ULTIMATE.start_test_fun_~x_12) (= v_ULTIMATE.start_test_fun_~y_7 |v_ULTIMATE.start_test_fun_#in~y_2|) (= |v_ULTIMATE.start_test_fun_#in~x_2| v_ULTIMATE.start_test_fun_~x_12) (< 0 v_ULTIMATE.start_test_fun_~y_7) (= v_ULTIMATE.start_test_fun_~c~0_7 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_5|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_12, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_8|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_7, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_2|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_2|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 82#L10-2 [50] L10-2-->L11: Formula: (> v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 85#L11 [47] L11-->L11-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_9 (+ v_ULTIMATE.start_test_fun_~x_10 (- 1))) (>= v_ULTIMATE.start_test_fun_~y_6 v_ULTIMATE.start_test_fun_~x_10)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_10} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_9} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 86#L11-2 [44] L11-2-->L10-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 89#L10-2 [2020-06-22 06:36:11,051 INFO L796 eck$LassoCheckResult]: Loop: 89#L10-2 [51] L10-2-->L11: Formula: (< v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 83#L11 [33] L11-->L11-2: Formula: (and (< v_ULTIMATE.start_test_fun_~y_5 v_ULTIMATE.start_test_fun_~x_8) (= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 84#L11-2 [44] L11-2-->L10-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 89#L10-2 [2020-06-22 06:36:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2611577, now seen corresponding path program 1 times [2020-06-22 06:36:11,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:11,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:11,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,064 INFO L82 PathProgramCache]: Analyzing trace with hash 79869, now seen corresponding path program 1 times [2020-06-22 06:36:11,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:11,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:11,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,071 INFO L82 PathProgramCache]: Analyzing trace with hash 492129157, now seen corresponding path program 1 times [2020-06-22 06:36:11,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:11,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:11,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:36:11,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 06:36:11,119 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 06:36:11,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 06:36:11,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:36:11,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 06:36:11,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-06-22 06:36:11,199 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:36:11,199 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:36:11,199 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:36:11,199 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:36:11,199 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:36:11,200 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:11,200 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:36:11,200 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:36:11,200 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:36:11,200 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:36:11,200 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:36:11,201 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 06:36:11,206 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 06:36:11,249 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:36:11,249 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 [2020-06-22 06:36:11,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:36:11,254 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:11,293 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:36:11,293 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:36:11,313 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:36:11,313 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:11,344 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:36:11,344 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:11,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:36:11,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:36:11,603 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 06:36:11,605 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:36:11,606 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:36:11,606 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:36:11,606 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:36:11,606 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 06:36:11,606 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 06:36:11,606 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:36:11,606 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:36:11,606 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 06:36:11,607 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:36:11,607 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:36:11,608 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 06:36:11,612 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 06:36:11,657 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:36:11,657 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 06:36:11,658 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 06:36:11,659 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:36:11,659 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:36:11,659 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:36:11,659 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:36:11,659 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:36:11,660 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:36:11,660 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:36:11,664 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 06:36:11,664 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 06:36:11,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 06:36:11,665 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 06:36:11,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 06:36:11,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 06:36:11,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 06:36:11,666 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 06:36:11,666 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 06:36:11,672 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 06:36:11,679 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 06:36:11,680 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 06:36:11,680 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 06:36:11,680 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 06:36:11,681 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 06:36:11,681 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~y) = 1*ULTIMATE.start_test_fun_~x - 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-06-22 06:36:11,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 06:36:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 06:36:11,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,715 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:36:11,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:11,728 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 06:36:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,748 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 06:36:11,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:11,749 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 06:36:11,749 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 06:36:11,749 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-06-22 06:36:11,825 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 70 states and 110 transitions. Complement of second has 23 states. [2020-06-22 06:36:11,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-06-22 06:36:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 06:36:11,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2020-06-22 06:36:11,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 06:36:11,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 7 letters. Loop has 3 letters. [2020-06-22 06:36:11,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 4 letters. Loop has 6 letters. [2020-06-22 06:36:11,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 06:36:11,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 110 transitions. [2020-06-22 06:36:11,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:11,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 27 states and 37 transitions. [2020-06-22 06:36:11,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 06:36:11,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 06:36:11,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2020-06-22 06:36:11,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 06:36:11,838 INFO L706 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-06-22 06:36:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2020-06-22 06:36:11,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-06-22 06:36:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 06:36:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2020-06-22 06:36:11,841 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-06-22 06:36:11,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 06:36:11,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-22 06:36:11,844 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2020-06-22 06:36:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 06:36:11,864 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2020-06-22 06:36:11,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 06:36:11,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2020-06-22 06:36:11,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:11,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 14 states and 17 transitions. [2020-06-22 06:36:11,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-06-22 06:36:11,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-06-22 06:36:11,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-06-22 06:36:11,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 06:36:11,869 INFO L706 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-06-22 06:36:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-06-22 06:36:11,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2020-06-22 06:36:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 06:36:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-06-22 06:36:11,871 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 06:36:11,871 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-06-22 06:36:11,871 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 06:36:11,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-06-22 06:36:11,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 06:36:11,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 06:36:11,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 06:36:11,873 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-06-22 06:36:11,873 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 06:36:11,873 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY [55] ULTIMATE.startENTRY-->L10-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~x_2| |v_ULTIMATE.start_main_#t~nondet0_5|) (= |v_ULTIMATE.start_test_fun_#in~y_2| |v_ULTIMATE.start_main_#t~nondet1_5|) (< 0 v_ULTIMATE.start_test_fun_~x_12) (= v_ULTIMATE.start_test_fun_~y_7 |v_ULTIMATE.start_test_fun_#in~y_2|) (= |v_ULTIMATE.start_test_fun_#in~x_2| v_ULTIMATE.start_test_fun_~x_12) (< 0 v_ULTIMATE.start_test_fun_~y_7) (= v_ULTIMATE.start_test_fun_~c~0_7 0)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_5|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_12, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_8|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_7, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_2|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_2|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 296#L10-2 [50] L10-2-->L11: Formula: (> v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 302#L11 [33] L11-->L11-2: Formula: (and (< v_ULTIMATE.start_test_fun_~y_5 v_ULTIMATE.start_test_fun_~x_8) (= v_ULTIMATE.start_test_fun_~x_7 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 303#L11-2 [44] L11-2-->L10-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 305#L10-2 [51] L10-2-->L11: Formula: (< v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 297#L11 [2020-06-22 06:36:11,874 INFO L796 eck$LassoCheckResult]: Loop: 297#L11 [47] L11-->L11-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_9 (+ v_ULTIMATE.start_test_fun_~x_10 (- 1))) (>= v_ULTIMATE.start_test_fun_~y_6 v_ULTIMATE.start_test_fun_~x_10)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_10} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_9} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 298#L11-2 [44] L11-2-->L10-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 301#L10-2 [51] L10-2-->L11: Formula: (< v_ULTIMATE.start_test_fun_~x_6 0) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} AuxVars[] AssignedVars[] 297#L11 [2020-06-22 06:36:11,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,874 INFO L82 PathProgramCache]: Analyzing trace with hash 80945484, now seen corresponding path program 1 times [2020-06-22 06:36:11,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:11,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:11,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:36:11,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 06:36:11,898 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 06:36:11,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 06:36:11,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 06:36:11,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 06:36:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 06:36:11,949 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 06:36:11,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2020-06-22 06:36:11,949 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 06:36:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 06:36:11,950 INFO L82 PathProgramCache]: Analyzing trace with hash 76373, now seen corresponding path program 1 times [2020-06-22 06:36:11,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 06:36:11,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 06:36:11,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 06:36:11,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 06:36:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 06:36:11,974 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 06:36:11,975 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 06:36:11,975 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 06:36:11,975 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 06:36:11,975 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 06:36:11,975 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:11,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 06:36:11,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 06:36:11,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 06:36:11,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 06:36:11,976 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 06:36:11,977 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 06:36:11,980 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 06:36:12,013 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 06:36:12,014 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:12,017 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:36:12,018 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:12,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:36:12,048 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:36:12,064 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:36:12,064 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=-4}, {ULTIMATE.start_test_fun_~c~0=7}, {ULTIMATE.start_test_fun_~c~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:12,093 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 06:36:12,093 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 06:36:12,124 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 06:36:12,124 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 06:36:12,149 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 06:36:12,150 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~y=-6, ULTIMATE.start_test_fun_~x=-6} Honda state: {ULTIMATE.start_test_fun_~y=-6, ULTIMATE.start_test_fun_~x=-6} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~y=0, ULTIMATE.start_test_fun_~x=0}, {ULTIMATE.start_test_fun_~y=0, ULTIMATE.start_test_fun_~x=-1}, {ULTIMATE.start_test_fun_~y=0, ULTIMATE.start_test_fun_~x=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2020-06-22 06:36:12,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 06:36:12,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 06:36:12,175 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-06-22 06:36:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 06:36:12,195 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-06-22 06:36:12,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 06:36:12,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 11 transitions. [2020-06-22 06:36:12,198 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:36:12,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-06-22 06:36:12,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 06:36:12,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 06:36:12,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 06:36:12,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 06:36:12,198 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:36:12,198 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:36:12,199 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 06:36:12,199 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 06:36:12,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 06:36:12,199 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 06:36:12,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 06:36:12,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 06:36:12 BasicIcfg [2020-06-22 06:36:12,205 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 06:36:12,206 INFO L168 Benchmark]: Toolchain (without parser) took 2936.08 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 564.1 MB in the beginning and 410.6 MB in the end (delta: 153.6 MB). Peak memory consumption was 174.0 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,207 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 06:36:12,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.51 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 564.1 MB in the beginning and 636.7 MB in the end (delta: -72.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.63 ms. Allocated memory is still 670.0 MB. Free memory was 635.4 MB in the beginning and 632.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,209 INFO L168 Benchmark]: Boogie Preprocessor took 18.68 ms. Allocated memory is still 670.0 MB. Free memory was 632.3 MB in the beginning and 630.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,210 INFO L168 Benchmark]: RCFGBuilder took 212.73 ms. Allocated memory is still 670.0 MB. Free memory was 630.9 MB in the beginning and 617.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,210 INFO L168 Benchmark]: BlockEncodingV2 took 77.48 ms. Allocated memory is still 670.0 MB. Free memory was 617.7 MB in the beginning and 612.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,211 INFO L168 Benchmark]: TraceAbstraction took 168.34 ms. Allocated memory is still 670.0 MB. Free memory was 611.0 MB in the beginning and 602.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,211 INFO L168 Benchmark]: BuchiAutomizer took 2145.67 ms. Allocated memory is still 670.0 MB. Free memory was 602.9 MB in the beginning and 410.6 MB in the end (delta: 192.3 MB). Peak memory consumption was 192.3 MB. Max. memory is 50.3 GB. [2020-06-22 06:36:12,215 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 274.51 ms. Allocated memory was 649.6 MB in the beginning and 670.0 MB in the end (delta: 20.4 MB). Free memory was 564.1 MB in the beginning and 636.7 MB in the end (delta: -72.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.63 ms. Allocated memory is still 670.0 MB. Free memory was 635.4 MB in the beginning and 632.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.68 ms. Allocated memory is still 670.0 MB. Free memory was 632.3 MB in the beginning and 630.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 212.73 ms. Allocated memory is still 670.0 MB. Free memory was 630.9 MB in the beginning and 617.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.48 ms. Allocated memory is still 670.0 MB. Free memory was 617.7 MB in the beginning and 612.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 168.34 ms. Allocated memory is still 670.0 MB. Free memory was 611.0 MB in the beginning and 602.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2145.67 ms. Allocated memory is still 670.0 MB. Free memory was 602.9 MB in the beginning and 410.6 MB in the end (delta: 192.3 MB). Peak memory consumption was 192.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 30 SDslu, 14 SDs, 0 SdLazy, 70 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN1 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq138 hnf93 smp100 dnf100 smp100 tf113 neg100 sie122 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 06:36:12.445 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check