/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:44:21,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:44:21,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:44:21,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:44:21,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:44:21,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:44:21,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:44:21,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:44:21,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:44:21,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:44:21,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:44:21,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:44:21,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:44:21,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:44:21,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:44:21,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:44:21,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:44:21,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:44:21,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:44:21,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:44:21,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:44:21,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:44:21,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:44:21,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:44:21,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:44:21,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:44:21,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:44:21,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:44:21,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:44:21,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:44:21,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:44:21,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:44:21,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:44:21,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:44:21,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:44:21,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:44:21,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:44:21,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:44:21,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:44:21,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:44:21,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:44:21,816 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:44:21,830 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:44:21,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:44:21,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:44:21,832 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:44:21,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:44:21,832 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:44:21,832 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:44:21,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:44:21,832 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:44:21,833 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:21,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:44:21,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:44:21,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:44:21,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:44:21,834 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:44:21,835 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:44:21,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:44:21,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:44:21,835 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:44:21,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:44:21,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:44:21,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:44:21,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:44:21,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:44:22,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:44:22,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:44:22,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:44:22,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:44:22,019 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:44:22,020 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:44:22,087 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5vmUVc/tmp/feb40c3c6fd04543aeebba3575d2b3ee/FLAG3c43be8da [2020-07-01 11:44:22,414 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:44:22,415 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:44:22,422 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5vmUVc/tmp/feb40c3c6fd04543aeebba3575d2b3ee/FLAG3c43be8da [2020-07-01 11:44:22,835 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_5vmUVc/tmp/feb40c3c6fd04543aeebba3575d2b3ee [2020-07-01 11:44:22,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:44:22,847 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:44:22,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:44:22,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:44:22,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:44:22,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:44:22" (1/1) ... [2020-07-01 11:44:22,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6544c57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:22, skipping insertion in model container [2020-07-01 11:44:22,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:44:22" (1/1) ... [2020-07-01 11:44:22,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:44:22,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:44:23,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:44:23,116 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:44:23,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:44:23,148 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:44:23,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23 WrapperNode [2020-07-01 11:44:23,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:44:23,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:44:23,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:44:23,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:44:23,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:44:23,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:44:23,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:44:23,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:44:23,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:44:23,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:44:23,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:44:23,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:44:23,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:44:23,280 INFO L130 BoogieDeclarations]: Found specification of procedure average [2020-07-01 11:44:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure average [2020-07-01 11:44:23,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:44:23,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:44:23,474 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:44:23,474 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 11:44:23,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:44:23 BoogieIcfgContainer [2020-07-01 11:44:23,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:44:23,479 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:44:23,479 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:44:23,481 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:44:23,482 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:44:23" (1/1) ... [2020-07-01 11:44:23,497 INFO L313 BlockEncoder]: Initial Icfg 19 locations, 24 edges [2020-07-01 11:44:23,499 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:44:23,499 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:44:23,500 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:44:23,500 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:44:23,502 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:44:23,502 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:44:23,503 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:44:23,518 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:44:23,525 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:44:23,530 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:44:23,532 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:44:23,541 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:44:23,543 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 11:44:23,544 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:44:23,545 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:44:23,545 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:44:23,546 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:44:23,546 INFO L313 BlockEncoder]: Encoded RCFG 15 locations, 20 edges [2020-07-01 11:44:23,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:44:23 BasicIcfg [2020-07-01 11:44:23,547 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:44:23,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:44:23,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:44:23,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:44:23,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:44:22" (1/4) ... [2020-07-01 11:44:23,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e490e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (2/4) ... [2020-07-01 11:44:23,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e490e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:44:23" (3/4) ... [2020-07-01 11:44:23,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e490e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:44:23" (4/4) ... [2020-07-01 11:44:23,556 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:44:23,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:44:23,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:44:23,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:44:23,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:44:23,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:44:23,615 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:44:23,615 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:44:23,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:44:23,616 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:44:23,616 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:44:23,616 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:44:23,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-01 11:44:23,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:44:23,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-07-01 11:44:23,713 INFO L268 CegarLoopResult]: For program point averageFINAL(lines 42 50) no Hoare annotation was computed. [2020-07-01 11:44:23,714 INFO L271 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: true [2020-07-01 11:44:23,714 INFO L268 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2020-07-01 11:44:23,714 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-07-01 11:44:23,715 INFO L271 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: true [2020-07-01 11:44:23,715 INFO L268 CegarLoopResult]: For program point L43(lines 43 49) no Hoare annotation was computed. [2020-07-01 11:44:23,715 INFO L268 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed. [2020-07-01 11:44:23,715 INFO L271 CegarLoopResult]: At program point averageENTRY(lines 42 50) the Hoare annotation is: true [2020-07-01 11:44:23,715 INFO L268 CegarLoopResult]: For program point averageEXIT(lines 42 50) no Hoare annotation was computed. [2020-07-01 11:44:23,715 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2020-07-01 11:44:23,716 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:44:23,716 INFO L271 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-07-01 11:44:23,716 INFO L271 CegarLoopResult]: At program point L37(lines 32 38) the Hoare annotation is: true [2020-07-01 11:44:23,716 INFO L271 CegarLoopResult]: At program point L37-1(lines 32 38) the Hoare annotation is: true [2020-07-01 11:44:23,716 INFO L268 CegarLoopResult]: For program point L34(lines 34 37) no Hoare annotation was computed. [2020-07-01 11:44:23,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:44:23 BasicIcfg [2020-07-01 11:44:23,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:44:23,727 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:44:23,727 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:44:23,731 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:44:23,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:44:23,732 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:44:22" (1/5) ... [2020-07-01 11:44:23,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46044164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:44:23,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:44:23" (2/5) ... [2020-07-01 11:44:23,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46044164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:44:23,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:44:23" (3/5) ... [2020-07-01 11:44:23,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46044164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:44:23,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:44:23" (4/5) ... [2020-07-01 11:44:23,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46044164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:44:23, skipping insertion in model container [2020-07-01 11:44:23,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:44:23,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:44:23" (5/5) ... [2020-07-01 11:44:23,737 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:44:23,764 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:44:23,765 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:44:23,765 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:44:23,765 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:44:23,765 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:44:23,765 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:44:23,765 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:44:23,765 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:44:23,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-07-01 11:44:23,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:44:23,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:44:23,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:44:23,797 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:44:23,797 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:44:23,797 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:44:23,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-07-01 11:44:23,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:44:23,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:44:23,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:44:23,800 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:44:23,800 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:44:23,806 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue [49] ULTIMATE.startENTRY-->L34: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_8|, ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_random_#res, ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_#t~ret4] 12#L34true [52] L34-->L37: Formula: (and (= |v_ULTIMATE.start_random_#res_1| (- v_ULTIMATE.start_random_~x~1_1)) (< v_ULTIMATE.start_random_~x~1_1 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 4#L37true [42] L37-->L34-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_4|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} OutVars{ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_3, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_3|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 10#L34-1true [66] L34-1-->L37-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_6 0) (= |v_ULTIMATE.start_random_#res_6| v_ULTIMATE.start_random_~x~1_6)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 17#L37-1true [61] L37-1-->L28: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_7|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 7#L28true [47] L28-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_3| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_average_#in~yInParam_3| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{average_#in~x=|v_average_#in~xInParam_3|, average_#in~y=|v_average_#in~yInParam_3|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 9#averageENTRYtrue [2020-07-01 11:44:23,806 INFO L796 eck$LassoCheckResult]: Loop: 9#averageENTRYtrue [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 5#L43true [43] L43-->L44: Formula: (< 0 v_average_~x_2) InVars {average_~x=v_average_~x_2} OutVars{average_~x=v_average_~x_2} AuxVars[] AssignedVars[] 3#L44true [41] L44-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_1| (+ v_average_~x_6 (- 1))) (= |v_average_#in~yInParam_1| (+ v_average_~y_6 1))) InVars {average_~x=v_average_~x_6, average_~y=v_average_~y_6} OutVars{average_#in~x=|v_average_#in~xInParam_1|, average_#in~y=|v_average_#in~yInParam_1|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 9#averageENTRYtrue [2020-07-01 11:44:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:23,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1955295538, now seen corresponding path program 1 times [2020-07-01 11:44:23,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:23,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588989139] [2020-07-01 11:44:23,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:23,912 INFO L82 PathProgramCache]: Analyzing trace with hash 77293, now seen corresponding path program 1 times [2020-07-01 11:44:23,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:23,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196081652] [2020-07-01 11:44:23,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:23,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1862856704, now seen corresponding path program 1 times [2020-07-01 11:44:23,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:23,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937766997] [2020-07-01 11:44:23,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:23,952 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:24,046 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:24,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:24,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:24,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:24,048 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:44:24,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:24,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:24,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:24,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:44:24,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:24,049 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:24,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,185 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:24,186 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:24,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:24,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:24,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:44:24,201 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {average_#t~ret7=0} Honda state: {average_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:24,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:24,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:24,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:44:24,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {average_#res=0} Honda state: {average_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:24,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:24,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:24,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:44:24,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {average_#t~ret8=0} Honda state: {average_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:24,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:24,308 INFO L160 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 [2020-07-01 11:44:24,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:44:24,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:24,454 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:44:24,456 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:24,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:24,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:24,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:24,457 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:44:24,457 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,457 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:24,457 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:24,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:44:24,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:24,458 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:24,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:24,541 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:24,547 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:24,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:24,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:24,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:24,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:24,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:24,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:24,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:24,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:24,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:24,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:24,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:24,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:24,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:24,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:24,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:24,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:24,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:24,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:24,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:24,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:24,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:24,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:24,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:24,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:24,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:24,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:24,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:24,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:24,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:24,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:24,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:24,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:24,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:24,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:24,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:24,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:24,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:24,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:24,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:24,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:44:24,722 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:44:24,722 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:24,727 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:44:24,727 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:44:24,727 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:44:24,728 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(average_#in~x) = 1*average_#in~x Supporting invariants [] [2020-07-01 11:44:24,762 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:44:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:24,812 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:44:24,814 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:24,834 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:44:24,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:24,910 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:44:24,915 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 [2020-07-01 11:44:24,917 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states. Second operand 4 states. [2020-07-01 11:44:25,032 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states.. Second operand 4 states. Result 53 states and 68 transitions. Complement of second has 16 states. [2020-07-01 11:44:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:44:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:44:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-07-01 11:44:25,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:44:25,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:25,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 11:44:25,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:25,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 11:44:25,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:25,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 68 transitions. [2020-07-01 11:44:25,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:44:25,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 23 states and 28 transitions. [2020-07-01 11:44:25,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 11:44:25,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-07-01 11:44:25,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2020-07-01 11:44:25,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:44:25,065 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2020-07-01 11:44:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2020-07-01 11:44:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2020-07-01 11:44:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-01 11:44:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-07-01 11:44:25,096 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-07-01 11:44:25,096 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-07-01 11:44:25,096 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:44:25,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-07-01 11:44:25,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:44:25,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:44:25,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:44:25,098 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:44:25,098 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 11:44:25,098 INFO L794 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L34: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_8|, ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_random_#res, ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_#t~ret4] 149#L34 [52] L34-->L37: Formula: (and (= |v_ULTIMATE.start_random_#res_1| (- v_ULTIMATE.start_random_~x~1_1)) (< v_ULTIMATE.start_random_~x~1_1 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 142#L37 [42] L37-->L34-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_4|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} OutVars{ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_3, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_3|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 143#L34-1 [66] L34-1-->L37-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_6 0) (= |v_ULTIMATE.start_random_#res_6| v_ULTIMATE.start_random_~x~1_6)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 150#L37-1 [61] L37-1-->L28: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_7|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 140#L28 [47] L28-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_3| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_average_#in~yInParam_3| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{average_#in~x=|v_average_#in~xInParam_3|, average_#in~y=|v_average_#in~yInParam_3|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 144#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 146#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 147#L45 [2020-07-01 11:44:25,099 INFO L796 eck$LassoCheckResult]: Loop: 147#L45 [58] L45-->L46: Formula: (< 2 v_average_~y_3) InVars {average_~y=v_average_~y_3} OutVars{average_~y=v_average_~y_3} AuxVars[] AssignedVars[] 137#L46 [54] L46-->averageENTRY: Formula: (and (= |v_average_#in~yInParam_2| (+ v_average_~y_7 (- 2))) (= |v_average_#in~xInParam_2| (+ v_average_~x_7 1))) InVars {average_~x=v_average_~x_7, average_~y=v_average_~y_7} OutVars{average_#in~x=|v_average_#in~xInParam_2|, average_#in~y=|v_average_#in~yInParam_2|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 138#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 151#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 147#L45 [2020-07-01 11:44:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:25,099 INFO L82 PathProgramCache]: Analyzing trace with hash -2138302111, now seen corresponding path program 1 times [2020-07-01 11:44:25,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:25,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885397281] [2020-07-01 11:44:25,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:25,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885397281] [2020-07-01 11:44:25,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:44:25,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 11:44:25,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98092469] [2020-07-01 11:44:25,171 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:44:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash 2704848, now seen corresponding path program 1 times [2020-07-01 11:44:25,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:25,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424375209] [2020-07-01 11:44:25,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:25,181 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:25,261 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:25,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:25,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:25,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:25,261 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:44:25,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:25,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:25,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:25,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:44:25,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:25,262 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:25,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,362 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:25,363 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2020-07-01 11:44:25,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:25,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:25,372 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:44:25,372 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {average_#t~ret8=0} Honda state: {average_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:25,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:25,409 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:25,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:44:25,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:25,906 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:44:25,908 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:25,908 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:25,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:25,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:25,908 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:44:25,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:25,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:25,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:25,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:44:25,909 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:25,909 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:25,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:25,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,001 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:26,002 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:26,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:26,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:26,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:26,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:26,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:26,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:26,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:26,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:26,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:26,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:26,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:26,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:26,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:26,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:26,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:26,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:26,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:26,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:44:26,058 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:44:26,058 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:26,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:44:26,061 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:44:26,061 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:44:26,062 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(average_~y) = 1*average_~y Supporting invariants [] [2020-07-01 11:44:26,091 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:44:26,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:26,128 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:44:26,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:26,145 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:44:26,146 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,240 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:44:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:26,255 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:44:26,256 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:26,267 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 11:44:26,268 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 5 loop predicates [2020-07-01 11:44:26,268 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 21 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-07-01 11:44:26,305 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 21 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 48 states and 63 transitions. Complement of second has 36 states. [2020-07-01 11:44:26,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:44:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:44:26,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-01 11:44:26,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-07-01 11:44:26,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:26,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 4 letters. [2020-07-01 11:44:26,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:26,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 8 letters. Loop has 8 letters. [2020-07-01 11:44:26,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:26,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 63 transitions. [2020-07-01 11:44:26,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-07-01 11:44:26,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 26 states and 33 transitions. [2020-07-01 11:44:26,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-07-01 11:44:26,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 11:44:26,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2020-07-01 11:44:26,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:44:26,316 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-07-01 11:44:26,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2020-07-01 11:44:26,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2020-07-01 11:44:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 11:44:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2020-07-01 11:44:26,319 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-07-01 11:44:26,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:44:26,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:44:26,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:44:26,322 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2020-07-01 11:44:26,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:44:26,383 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2020-07-01 11:44:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-01 11:44:26,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2020-07-01 11:44:26,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 11:44:26,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 37 transitions. [2020-07-01 11:44:26,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-07-01 11:44:26,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-07-01 11:44:26,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2020-07-01 11:44:26,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:44:26,389 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-01 11:44:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2020-07-01 11:44:26,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-07-01 11:44:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-01 11:44:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-07-01 11:44:26,392 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-07-01 11:44:26,392 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-07-01 11:44:26,392 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:44:26,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2020-07-01 11:44:26,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-01 11:44:26,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:44:26,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:44:26,394 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:44:26,394 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2020-07-01 11:44:26,394 INFO L794 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L34: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_8|, ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_random_#res, ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_#t~ret4] 371#L34 [65] L34-->L37: Formula: (and (= |v_ULTIMATE.start_random_#res_2| v_ULTIMATE.start_random_~x~1_2) (>= v_ULTIMATE.start_random_~x~1_2 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_2} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_2, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_2|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 368#L37 [42] L37-->L34-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_4|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} OutVars{ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_3, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_3|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 369#L34-1 [66] L34-1-->L37-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_6 0) (= |v_ULTIMATE.start_random_#res_6| v_ULTIMATE.start_random_~x~1_6)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 384#L37-1 [61] L37-1-->L28: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_7|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 367#L28 [47] L28-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_3| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_average_#in~yInParam_3| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{average_#in~x=|v_average_#in~xInParam_3|, average_#in~y=|v_average_#in~yInParam_3|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 383#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 374#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 375#L45 [2020-07-01 11:44:26,394 INFO L796 eck$LassoCheckResult]: Loop: 375#L45 [58] L45-->L46: Formula: (< 2 v_average_~y_3) InVars {average_~y=v_average_~y_3} OutVars{average_~y=v_average_~y_3} AuxVars[] AssignedVars[] 362#L46 [54] L46-->averageENTRY: Formula: (and (= |v_average_#in~yInParam_2| (+ v_average_~y_7 (- 2))) (= |v_average_#in~xInParam_2| (+ v_average_~x_7 1))) InVars {average_~x=v_average_~x_7, average_~y=v_average_~y_7} OutVars{average_#in~x=|v_average_#in~xInParam_2|, average_#in~y=|v_average_#in~yInParam_2|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 379#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 381#L43 [43] L43-->L44: Formula: (< 0 v_average_~x_2) InVars {average_~x=v_average_~x_2} OutVars{average_~x=v_average_~x_2} AuxVars[] AssignedVars[] 361#L44 [41] L44-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_1| (+ v_average_~x_6 (- 1))) (= |v_average_#in~yInParam_1| (+ v_average_~y_6 1))) InVars {average_~x=v_average_~x_6, average_~y=v_average_~y_6} OutVars{average_#in~x=|v_average_#in~xInParam_1|, average_#in~y=|v_average_#in~yInParam_1|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 363#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 382#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 375#L45 [2020-07-01 11:44:26,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash 809311150, now seen corresponding path program 1 times [2020-07-01 11:44:26,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:26,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803960804] [2020-07-01 11:44:26,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:26,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:26,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1024925884, now seen corresponding path program 1 times [2020-07-01 11:44:26,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:26,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248987964] [2020-07-01 11:44:26,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:26,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash 921876215, now seen corresponding path program 1 times [2020-07-01 11:44:26,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:26,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036185004] [2020-07-01 11:44:26,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:26,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:26,572 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:26,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:26,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:26,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:26,573 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:44:26,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:26,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:26,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:26,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:44:26,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:26,574 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:26,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:26,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:26,660 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:26,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:26,663 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:26,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:44:26,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:27,243 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:44:27,246 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:27,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:27,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:27,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:27,246 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:44:27,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:27,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:27,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:27,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:44:27,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:27,247 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:27,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:27,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:27,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:27,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:27,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:27,317 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:27,317 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:27,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:27,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:27,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:27,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:27,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:27,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:27,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:27,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:27,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:44:27,330 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:44:27,330 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:27,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:44:27,332 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:44:27,333 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:44:27,333 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(average_~y) = 1*average_~y Supporting invariants [] [2020-07-01 11:44:27,363 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:44:27,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:27,390 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:44:27,390 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:27,407 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:44:27,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,541 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:44:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:27,554 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:44:27,555 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,635 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:44:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:27,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-01 11:44:27,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:27,664 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 10 predicates after loop cannibalization [2020-07-01 11:44:27,664 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 10 loop predicates [2020-07-01 11:44:27,664 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 24 states and 31 transitions. cyclomatic complexity: 9 Second operand 7 states. [2020-07-01 11:44:27,811 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 24 states and 31 transitions. cyclomatic complexity: 9. Second operand 7 states. Result 150 states and 202 transitions. Complement of second has 126 states. [2020-07-01 11:44:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-07-01 11:44:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:44:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 28 transitions. [2020-07-01 11:44:27,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 8 letters. Loop has 7 letters. [2020-07-01 11:44:27,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:27,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 15 letters. Loop has 7 letters. [2020-07-01 11:44:27,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:27,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 28 transitions. Stem has 8 letters. Loop has 14 letters. [2020-07-01 11:44:27,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:27,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 202 transitions. [2020-07-01 11:44:27,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2020-07-01 11:44:27,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 56 states and 70 transitions. [2020-07-01 11:44:27,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-07-01 11:44:27,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-07-01 11:44:27,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 70 transitions. [2020-07-01 11:44:27,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:44:27,824 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-07-01 11:44:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 70 transitions. [2020-07-01 11:44:27,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2020-07-01 11:44:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-01 11:44:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-07-01 11:44:27,827 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-07-01 11:44:27,827 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-07-01 11:44:27,827 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:44:27,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-07-01 11:44:27,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-07-01 11:44:27,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:44:27,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:44:27,829 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:44:27,829 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 1, 1, 1] [2020-07-01 11:44:27,829 INFO L794 eck$LassoCheckResult]: Stem: 792#ULTIMATE.startENTRY [49] ULTIMATE.startENTRY-->L34: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_8|, ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret5=|v_ULTIMATE.start_main_#t~ret5_2|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_random_#res, ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~ret5, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_#t~ret4] 793#L34 [65] L34-->L37: Formula: (and (= |v_ULTIMATE.start_random_#res_2| v_ULTIMATE.start_random_~x~1_2) (>= v_ULTIMATE.start_random_~x~1_2 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_2} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_2, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_2|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 786#L37 [42] L37-->L34-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_4|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} OutVars{ULTIMATE.start_random_#t~nondet6=|v_ULTIMATE.start_random_#t~nondet6_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_3, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_3|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet6, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 787#L34-1 [66] L34-1-->L37-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_6 0) (= |v_ULTIMATE.start_random_#res_6| v_ULTIMATE.start_random_~x~1_6)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_6, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 809#L37-1 [61] L37-1-->L28: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_7|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 801#L28 [47] L28-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_3| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_average_#in~yInParam_3| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{average_#in~x=|v_average_#in~xInParam_3|, average_#in~y=|v_average_#in~yInParam_3|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 808#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 803#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 802#L45 [2020-07-01 11:44:27,830 INFO L796 eck$LassoCheckResult]: Loop: 802#L45 [58] L45-->L46: Formula: (< 2 v_average_~y_3) InVars {average_~y=v_average_~y_3} OutVars{average_~y=v_average_~y_3} AuxVars[] AssignedVars[] 782#L46 [54] L46-->averageENTRY: Formula: (and (= |v_average_#in~yInParam_2| (+ v_average_~y_7 (- 2))) (= |v_average_#in~xInParam_2| (+ v_average_~x_7 1))) InVars {average_~x=v_average_~x_7, average_~y=v_average_~y_7} OutVars{average_#in~x=|v_average_#in~xInParam_2|, average_#in~y=|v_average_#in~yInParam_2|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 799#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 810#L43 [43] L43-->L44: Formula: (< 0 v_average_~x_2) InVars {average_~x=v_average_~x_2} OutVars{average_~x=v_average_~x_2} AuxVars[] AssignedVars[] 781#L44 [41] L44-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_1| (+ v_average_~x_6 (- 1))) (= |v_average_#in~yInParam_1| (+ v_average_~y_6 1))) InVars {average_~x=v_average_~x_6, average_~y=v_average_~y_6} OutVars{average_#in~x=|v_average_#in~xInParam_1|, average_#in~y=|v_average_#in~yInParam_1|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 783#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 788#L43 [43] L43-->L44: Formula: (< 0 v_average_~x_2) InVars {average_~x=v_average_~x_2} OutVars{average_~x=v_average_~x_2} AuxVars[] AssignedVars[] 790#L44 [41] L44-->averageENTRY: Formula: (and (= |v_average_#in~xInParam_1| (+ v_average_~x_6 (- 1))) (= |v_average_#in~yInParam_1| (+ v_average_~y_6 1))) InVars {average_~x=v_average_~x_6, average_~y=v_average_~y_6} OutVars{average_#in~x=|v_average_#in~xInParam_1|, average_#in~y=|v_average_#in~yInParam_1|} AuxVars[] AssignedVars[average_#in~x, average_#in~y]< 804#averageENTRY [48] averageENTRY-->L43: Formula: (and (= v_average_~x_1 |v_average_#in~x_1|) (= v_average_~y_1 |v_average_#in~y_1|)) InVars {average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} OutVars{average_~x=v_average_~x_1, average_~y=v_average_~y_1, average_#in~y=|v_average_#in~y_1|, average_#in~x=|v_average_#in~x_1|} AuxVars[] AssignedVars[average_~x, average_~y] 805#L43 [67] L43-->L45: Formula: (>= 0 v_average_~x_4) InVars {average_~x=v_average_~x_4} OutVars{average_~x=v_average_~x_4} AuxVars[] AssignedVars[] 802#L45 [2020-07-01 11:44:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:27,830 INFO L82 PathProgramCache]: Analyzing trace with hash 809311150, now seen corresponding path program 2 times [2020-07-01 11:44:27,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:27,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63657776] [2020-07-01 11:44:27,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,842 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:27,843 INFO L82 PathProgramCache]: Analyzing trace with hash -645177008, now seen corresponding path program 2 times [2020-07-01 11:44:27,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:27,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484878746] [2020-07-01 11:44:27,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:27,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:44:27,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:27,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1592756413, now seen corresponding path program 2 times [2020-07-01 11:44:27,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:44:27,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469755689] [2020-07-01 11:44:27,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:44:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:27,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469755689] [2020-07-01 11:44:27,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:44:27,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 11:44:27,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574137088] [2020-07-01 11:44:28,134 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:28,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:28,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:28,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:28,135 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:44:28,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:28,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:28,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:28,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:44:28,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:28,136 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:28,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:28,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:28,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:28,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:28,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:28,231 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:28,231 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:28,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:28,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:28,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:44:28,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {average_#res=0} Honda state: {average_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:28,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:44:28,275 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:44:28,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:44:28,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:44:29,312 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:44:29,314 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:44:29,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:44:29,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:44:29,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:44:29,315 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:44:29,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:29,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:44:29,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:44:29,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:44:29,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:44:29,315 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:44:29,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:29,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:29,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:29,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:29,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:44:29,390 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:44:29,391 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:29,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:29,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:29,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:29,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:29,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:29,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:29,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:29,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:29,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:29,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:29,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:29,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:29,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:29,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:29,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:29,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:29,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:29,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:29,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:44:29,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:44:29,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:44:29,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:44:29,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:44:29,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:44:29,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:44:29,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:44:29,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:44:29,493 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:44:29,493 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:44:29,496 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:44:29,496 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:44:29,496 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:44:29,496 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(average_~x) = 1*average_~x Supporting invariants [] [2020-07-01 11:44:29,526 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:44:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:44:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,547 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,548 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,575 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,576 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:44:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:29,640 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:44:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,659 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,660 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,759 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,760 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:44:29,810 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-07-01 11:44:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,829 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,830 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,922 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,923 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,945 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:44:29,971 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 11:44:29,972 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:44:29,977 INFO L98 LoopCannibalizer]: 5 predicates before loop cannibalization 14 predicates after loop cannibalization [2020-07-01 11:44:29,977 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 14 loop predicates [2020-07-01 11:44:29,977 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 30 states and 38 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-07-01 11:44:30,496 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 30 states and 38 transitions. cyclomatic complexity: 10. Second operand 7 states. Result 1955 states and 2647 transitions. Complement of second has 1201 states. [2020-07-01 11:44:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2020-07-01 11:44:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:44:30,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 45 transitions. [2020-07-01 11:44:30,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 8 letters. Loop has 10 letters. [2020-07-01 11:44:30,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:30,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 18 letters. Loop has 10 letters. [2020-07-01 11:44:30,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:30,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 8 letters. Loop has 20 letters. [2020-07-01 11:44:30,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:44:30,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1955 states and 2647 transitions. [2020-07-01 11:44:30,531 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:44:30,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1955 states to 0 states and 0 transitions. [2020-07-01 11:44:30,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:44:30,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:44:30,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:44:30,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:44:30,532 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:44:30,532 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:44:30,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:44:30,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:44:30,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:44:30,533 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2020-07-01 11:44:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:44:30,533 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 11:44:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:44:30,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 11:44:30,535 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:44:30,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 11:44:30,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:44:30,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:44:30,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:44:30,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:44:30,536 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:44:30,536 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:44:30,536 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:44:30,536 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:44:30,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:44:30,536 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:44:30,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:44:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:44:30 BasicIcfg [2020-07-01 11:44:30,543 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:44:30,546 INFO L168 Benchmark]: Toolchain (without parser) took 7697.76 ms. Allocated memory was 514.9 MB in the beginning and 633.3 MB in the end (delta: 118.5 MB). Free memory was 438.9 MB in the beginning and 439.0 MB in the end (delta: -96.3 kB). Peak memory consumption was 118.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,547 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:44:30,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.93 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 438.9 MB in the beginning and 530.5 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.27 ms. Allocated memory is still 562.6 MB. Free memory was 530.5 MB in the beginning and 528.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,548 INFO L168 Benchmark]: Boogie Preprocessor took 18.48 ms. Allocated memory is still 562.6 MB. Free memory was 528.4 MB in the beginning and 527.8 MB in the end (delta: 674.3 kB). Peak memory consumption was 674.3 kB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,549 INFO L168 Benchmark]: RCFGBuilder took 273.37 ms. Allocated memory is still 562.6 MB. Free memory was 527.1 MB in the beginning and 512.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,549 INFO L168 Benchmark]: BlockEncodingV2 took 67.73 ms. Allocated memory is still 562.6 MB. Free memory was 512.5 MB in the beginning and 507.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,550 INFO L168 Benchmark]: TraceAbstraction took 178.39 ms. Allocated memory is still 562.6 MB. Free memory was 507.1 MB in the beginning and 496.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,550 INFO L168 Benchmark]: BuchiAutomizer took 6816.71 ms. Allocated memory was 562.6 MB in the beginning and 633.3 MB in the end (delta: 70.8 MB). Free memory was 495.5 MB in the beginning and 439.0 MB in the end (delta: 56.5 MB). Peak memory consumption was 127.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:44:30,553 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 19 locations, 24 edges - StatisticsResult: Encoded RCFG 15 locations, 20 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 300.93 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 438.9 MB in the beginning and 530.5 MB in the end (delta: -91.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.27 ms. Allocated memory is still 562.6 MB. Free memory was 530.5 MB in the beginning and 528.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.48 ms. Allocated memory is still 562.6 MB. Free memory was 528.4 MB in the beginning and 527.8 MB in the end (delta: 674.3 kB). Peak memory consumption was 674.3 kB. Max. memory is 50.3 GB. * RCFGBuilder took 273.37 ms. Allocated memory is still 562.6 MB. Free memory was 527.1 MB in the beginning and 512.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 67.73 ms. Allocated memory is still 562.6 MB. Free memory was 512.5 MB in the beginning and 507.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 178.39 ms. Allocated memory is still 562.6 MB. Free memory was 507.1 MB in the beginning and 496.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 6816.71 ms. Allocated memory was 562.6 MB in the beginning and 633.3 MB in the end (delta: 70.8 MB). Free memory was 495.5 MB in the beginning and 439.0 MB in the end (delta: 56.5 MB). Peak memory consumption was 127.3 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 6 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 0 deterministic, 4 nondeterministic). One nondeterministic module has affine ranking function \old(x) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 9 locations. One nondeterministic module has affine ranking function x and consists of 14 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 4.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 46 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/9 HoareTripleCheckerStatistics: 85 SDtfs, 128 SDslu, 129 SDs, 0 SdLazy, 258 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf92 smp95 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:44:19.604 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_5vmUVc/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:44:30.786 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check