/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:39:22,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:39:22,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:39:22,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:39:22,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:39:22,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:39:22,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:39:22,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:39:22,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:39:22,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:39:22,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:39:22,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:39:22,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:39:22,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:39:22,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:39:22,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:39:22,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:39:22,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:39:22,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:39:22,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:39:22,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:39:22,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:39:22,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:39:22,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:39:22,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:39:22,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:39:22,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:39:22,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:39:22,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:39:22,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:39:22,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:39:22,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:39:22,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:39:22,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:39:22,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:39:22,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:39:22,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:39:22,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:39:22,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:39:22,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:39:22,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:39:22,192 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:39:22,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:39:22,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:39:22,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:39:22,208 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:39:22,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:39:22,208 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:39:22,208 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:39:22,208 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:39:22,209 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:39:22,210 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:22,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:39:22,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:39:22,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:39:22,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:39:22,210 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:39:22,211 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:39:22,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:39:22,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:39:22,211 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:39:22,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:39:22,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:39:22,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:39:22,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:39:22,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:39:22,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:39:22,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:39:22,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:39:22,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:39:22,398 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:39:22,398 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:39:22,459 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_Fn4o6z/tmp/02dc650a4dbf447592526910101e226a/FLAG11a366dd6 [2020-07-01 11:39:22,802 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:39:22,803 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:39:22,810 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_Fn4o6z/tmp/02dc650a4dbf447592526910101e226a/FLAG11a366dd6 [2020-07-01 11:39:23,201 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_Fn4o6z/tmp/02dc650a4dbf447592526910101e226a [2020-07-01 11:39:23,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:39:23,214 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:39:23,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:39:23,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:39:23,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:39:23,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a07f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:39:23,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:39:23,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:39:23,466 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:39:23,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:39:23,495 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:39:23,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23 WrapperNode [2020-07-01 11:39:23,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:39:23,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:39:23,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:39:23,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:39:23,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:39:23,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:39:23,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:39:23,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:39:23,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:39:23,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:39:23,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:39:23,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:39:23,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:39:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:39:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:39:23,765 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:39:23,766 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:39:23,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:39:23 BoogieIcfgContainer [2020-07-01 11:39:23,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:39:23,770 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:39:23,770 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:39:23,772 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:39:23,773 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:39:23" (1/1) ... [2020-07-01 11:39:23,785 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:39:23,787 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:39:23,787 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:39:23,788 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:39:23,788 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:39:23,790 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:39:23,791 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:39:23,791 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:39:23,805 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:39:23,812 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:39:23,818 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:39:23,819 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:39:23,833 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 11:39:23,835 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:39:23,836 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:39:23,836 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:39:23,837 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:39:23,837 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:39:23,837 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:39:23,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:39:23 BasicIcfg [2020-07-01 11:39:23,838 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:39:23,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:39:23,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:39:23,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:39:23,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:39:23" (1/4) ... [2020-07-01 11:39:23,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265a264c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (2/4) ... [2020-07-01 11:39:23,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265a264c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:39:23" (3/4) ... [2020-07-01 11:39:23,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265a264c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:39:23" (4/4) ... [2020-07-01 11:39:23,847 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:39:23,858 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:39:23,865 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:39:23,880 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:39:23,903 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:39:23,903 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:39:23,903 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:39:23,903 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:39:23,904 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:39:23,904 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:39:23,904 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:39:23,904 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:39:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:39:23,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:39:23,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:39:23,981 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 18) the Hoare annotation is: true [2020-07-01 11:39:23,981 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:39:23,982 INFO L271 CegarLoopResult]: At program point L15-2(lines 15 20) the Hoare annotation is: true [2020-07-01 11:39:23,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:39:23 BasicIcfg [2020-07-01 11:39:23,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:39:23,991 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:39:23,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:39:23,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:39:23,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:39:23,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:39:23" (1/5) ... [2020-07-01 11:39:23,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b34773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:39:23,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:39:23" (2/5) ... [2020-07-01 11:39:23,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b34773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:39:23,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:39:23" (3/5) ... [2020-07-01 11:39:23,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b34773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:39:23,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:39:23" (4/5) ... [2020-07-01 11:39:23,999 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b34773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:39:23, skipping insertion in model container [2020-07-01 11:39:23,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:39:23,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:39:23" (5/5) ... [2020-07-01 11:39:24,001 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:39:24,029 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:39:24,030 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:39:24,030 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:39:24,030 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:39:24,030 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:39:24,030 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:39:24,031 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:39:24,031 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:39:24,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:39:24,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:39:24,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:39:24,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:39:24,057 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:39:24,057 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:39:24,057 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:39:24,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:39:24,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:39:24,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:39:24,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:39:24,059 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:39:24,059 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:39:24,064 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [35] ULTIMATE.startENTRY-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 v_ULTIMATE.start_main_~N~0_1) (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_~N~0] 5#L15-2true [2020-07-01 11:39:24,064 INFO L796 eck$LassoCheckResult]: Loop: 5#L15-2true [39] L15-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~N~0_4) (< 0 v_ULTIMATE.start_main_~i~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 3#L17-2true [45] L17-2-->L15-2: Formula: (and (= (+ v_ULTIMATE.start_main_~i~0_9 1) v_ULTIMATE.start_main_~i~0_10) (<= v_ULTIMATE.start_main_~j~0_8 0)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 5#L15-2true [2020-07-01 11:39:24,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,071 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-07-01 11:39:24,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247823992] [2020-07-01 11:39:24,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:39:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times [2020-07-01 11:39:24,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722322910] [2020-07-01 11:39:24,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,168 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:39:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,170 INFO L82 PathProgramCache]: Analyzing trace with hash 64680, now seen corresponding path program 1 times [2020-07-01 11:39:24,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976657474] [2020-07-01 11:39:24,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:39:24,242 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 11:39:24,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976657474] [2020-07-01 11:39:24,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:39:24,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 11:39:24,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77393860] [2020-07-01 11:39:24,287 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:39:24,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:39:24,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:39:24,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:39:24,289 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:39:24,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:39:24,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:39:24,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:39:24,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:39:24,290 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:39:24,307 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 11:39:24,321 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 11:39:24,328 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 11:39:24,385 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:39:24,386 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:39:24,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:39:24,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:39:24,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Honda state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:39:24,439 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:39:24,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:39:24,512 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:39:24,514 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:39:24,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:39:24,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:39:24,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:39:24,515 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:39:24,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:39:24,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:39:24,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:39:24,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:39:24,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:39:24,516 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:39:24,517 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 11:39:24,525 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 11:39:24,535 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 11:39:24,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:39:24,593 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:39:24,598 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 11:39:24,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:39:24,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:39:24,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:39:24,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:39:24,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:39:24,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:39:24,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:39:24,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:39:24,662 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 11:39:24,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:39:24,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:39:24,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:39:24,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:39:24,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:39:24,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:39:24,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:39:24,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:39:24,674 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:39:24,674 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/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 11:39:24,679 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:39:24,680 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:39:24,680 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:39:24,681 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 11:39:24,714 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:39:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:39:24,749 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:39:24,750 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:39:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:39:24,760 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:39:24,761 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:39:24,773 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 11:39:24,798 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:39:24,804 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 2 loop predicates [2020-07-01 11:39:24,805 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:39:24,831 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:39:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:39:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:39:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:39:24,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:39:24,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:24,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:39:24,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:24,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:39:24,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:24,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:39:24,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:39:24,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:39:24,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:39:24,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:39:24,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 11:39:24,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:39:24,851 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:39:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 11:39:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:39:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:39:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:39:24,879 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:39:24,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:39:24,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 11:39:24,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-01 11:39:24,883 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. Second operand 4 states. [2020-07-01 11:39:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:39:24,913 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-01 11:39:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 11:39:24,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 11:39:24,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 11:39:24,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 11:39:24,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:39:24,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:39:24,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 11:39:24,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:39:24,918 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 11:39:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 11:39:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2020-07-01 11:39:24,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 11:39:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:39:24,919 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:39:24,919 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:39:24,920 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:39:24,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-07-01 11:39:24,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:39:24,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:39:24,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:39:24,921 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:39:24,921 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:39:24,921 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY [35] ULTIMATE.startENTRY-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 v_ULTIMATE.start_main_~N~0_1) (= v_ULTIMATE.start_main_~N~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_~N~0] 64#L15-2 [39] L15-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~N~0_4) (< 0 v_ULTIMATE.start_main_~i~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 60#L17-2 [2020-07-01 11:39:24,922 INFO L796 eck$LassoCheckResult]: Loop: 60#L17-2 [33] L17-2-->L17-2: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_6) (= (+ v_ULTIMATE.start_main_~j~0_5 1) v_ULTIMATE.start_main_~j~0_6)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_5, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post1] 60#L17-2 [2020-07-01 11:39:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2085, now seen corresponding path program 1 times [2020-07-01 11:39:24,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183902867] [2020-07-01 11:39:24,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:39:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 11:39:24,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293082710] [2020-07-01 11:39:24,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:39:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:24,936 INFO L82 PathProgramCache]: Analyzing trace with hash 64668, now seen corresponding path program 1 times [2020-07-01 11:39:24,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:39:24,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148005850] [2020-07-01 11:39:24,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:39:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:39:24,946 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:39:24,957 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:39:24,957 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:39:24,957 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:39:24,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:39:24,957 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:39:24,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:39:24,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:39:24,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:39:24,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:39:24,958 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:39:24,959 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 11:39:24,966 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 11:39:24,990 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:39:24,990 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:24,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:39:24,995 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:39:25,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:39:25,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:39:25,067 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:39:25,070 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:39:25,070 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:39:25,070 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:39:25,070 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:39:25,070 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:39:25,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:39:25,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:39:25,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:39:25,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:39:25,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:39:25,071 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:39:25,072 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 11:39:25,080 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 11:39:25,104 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:39:25,104 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 11:39:25,108 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 11:39:25,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:39:25,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:39:25,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:39:25,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:39:25,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:39:25,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:39:25,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:39:25,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:39:25,119 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:39:25,119 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/sandbox/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 11:39:25,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:39:25,125 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:39:25,125 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:39:25,125 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 11:39:25,156 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:39:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:39:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:39:25,180 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:39:25,181 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:39:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:39:25,186 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:39:25,186 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:39:25,186 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 11:39:25,187 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:39:25,187 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 1 loop predicates [2020-07-01 11:39:25,187 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:39:25,201 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 8 states and 11 transitions. Complement of second has 4 states. [2020-07-01 11:39:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:39:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:39:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:39:25,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:39:25,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:25,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:39:25,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:25,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:39:25,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:39:25,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-07-01 11:39:25,205 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:39:25,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-07-01 11:39:25,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:39:25,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:39:25,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:39:25,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:39:25,207 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:39:25,207 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:39:25,207 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:39:25,207 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:39:25,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:39:25,207 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:39:25,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:39:25,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:39:25 BasicIcfg [2020-07-01 11:39:25,214 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:39:25,217 INFO L168 Benchmark]: Toolchain (without parser) took 2002.27 ms. Allocated memory was 649.6 MB in the beginning and 704.6 MB in the end (delta: 55.1 MB). Free memory was 561.7 MB in the beginning and 509.4 MB in the end (delta: 52.3 MB). Peak memory consumption was 107.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,218 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:39:25,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.22 ms. Allocated memory was 649.6 MB in the beginning and 704.6 MB in the end (delta: 55.1 MB). Free memory was 561.7 MB in the beginning and 668.0 MB in the end (delta: -106.3 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.98 ms. Allocated memory is still 704.6 MB. Free memory was 668.0 MB in the beginning and 666.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,219 INFO L168 Benchmark]: Boogie Preprocessor took 19.23 ms. Allocated memory is still 704.6 MB. Free memory was 666.7 MB in the beginning and 665.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,220 INFO L168 Benchmark]: RCFGBuilder took 220.60 ms. Allocated memory is still 704.6 MB. Free memory was 665.3 MB in the beginning and 650.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,221 INFO L168 Benchmark]: BlockEncodingV2 took 68.18 ms. Allocated memory is still 704.6 MB. Free memory was 650.9 MB in the beginning and 645.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,221 INFO L168 Benchmark]: TraceAbstraction took 151.76 ms. Allocated memory is still 704.6 MB. Free memory was 644.1 MB in the beginning and 636.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,222 INFO L168 Benchmark]: BuchiAutomizer took 1222.93 ms. Allocated memory is still 704.6 MB. Free memory was 636.1 MB in the beginning and 509.4 MB in the end (delta: 126.7 MB). Peak memory consumption was 126.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:39:25,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.22 ms. Allocated memory was 649.6 MB in the beginning and 704.6 MB in the end (delta: 55.1 MB). Free memory was 561.7 MB in the beginning and 668.0 MB in the end (delta: -106.3 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.98 ms. Allocated memory is still 704.6 MB. Free memory was 668.0 MB in the beginning and 666.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.23 ms. Allocated memory is still 704.6 MB. Free memory was 666.7 MB in the beginning and 665.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 220.60 ms. Allocated memory is still 704.6 MB. Free memory was 665.3 MB in the beginning and 650.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.18 ms. Allocated memory is still 704.6 MB. Free memory was 650.9 MB in the beginning and 645.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.76 ms. Allocated memory is still 704.6 MB. Free memory was 644.1 MB in the beginning and 636.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1222.93 ms. Allocated memory is still 704.6 MB. Free memory was 636.1 MB in the beginning and 509.4 MB in the end (delta: 126.7 MB). Peak memory consumption was 126.7 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 14 SDslu, 2 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:39:19.889 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_Fn4o6z/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:39:25.867 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check