/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:54:22,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:54:22,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:54:22,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:54:22,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:54:22,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:54:22,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:54:22,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:54:22,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:54:22,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:54:22,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:54:22,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:54:22,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:54:22,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:54:22,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:54:22,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:54:22,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:54:22,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:54:22,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:54:22,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:54:22,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:54:22,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:54:22,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:54:22,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:54:22,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:54:22,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:54:22,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:54:22,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:54:22,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:54:22,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:54:22,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:54:22,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:54:22,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:54:22,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:54:22,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:54:22,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:54:22,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:54:22,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:54:22,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:54:22,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:54:22,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:54:22,161 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:54:22,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:54:22,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:54:22,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:54:22,177 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:54:22,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:54:22,177 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:54:22,177 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:54:22,178 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:54:22,178 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:54:22,178 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:54:22,178 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:54:22,178 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:54:22,179 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:54:22,179 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:54:22,179 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:22,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:54:22,179 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:54:22,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:54:22,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:54:22,180 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:54:22,180 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:54:22,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:54:22,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:54:22,180 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:54:22,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:54:22,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:54:22,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:54:22,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:54:22,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:54:22,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:54:22,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:54:22,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:54:22,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:54:22,369 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:54:22,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:54:22,432 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_IsqOUj/tmp/d225e1a642e744ce82d11bbb3e06c61a/FLAG55a3bcb0a [2020-07-01 10:54:22,771 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:54:22,772 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:54:22,778 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_IsqOUj/tmp/d225e1a642e744ce82d11bbb3e06c61a/FLAG55a3bcb0a [2020-07-01 10:54:23,184 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_IsqOUj/tmp/d225e1a642e744ce82d11bbb3e06c61a [2020-07-01 10:54:23,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:54:23,197 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:54:23,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:54:23,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:54:23,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:54:23,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f9568e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:54:23,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:54:23,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:54:23,451 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:54:23,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:54:23,481 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:54:23,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23 WrapperNode [2020-07-01 10:54:23,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:54:23,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:54:23,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:54:23,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:54:23,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:54:23,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:54:23,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:54:23,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:54:23,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:54:23,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:54:23,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:54:23,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:54:23,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (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 10:54:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:54:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:54:23,744 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:54:23,745 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 10:54:23,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:54:23 BoogieIcfgContainer [2020-07-01 10:54:23,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:54:23,749 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:54:23,749 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:54:23,751 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:54:23,752 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:54:23" (1/1) ... [2020-07-01 10:54:23,764 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 10:54:23,766 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:54:23,767 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:54:23,767 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:54:23,768 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:54:23,769 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:54:23,770 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:54:23,771 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:54:23,784 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:54:23,791 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:54:23,796 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 10:54:23,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:54:23,814 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 10:54:23,816 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:54:23,817 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:54:23,818 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:54:23,818 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:54:23,818 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:54:23,818 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 10:54:23,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:54:23 BasicIcfg [2020-07-01 10:54:23,819 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:54:23,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:54:23,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:54:23,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:54:23,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:54:23" (1/4) ... [2020-07-01 10:54:23,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e00098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (2/4) ... [2020-07-01 10:54:23,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e00098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:54:23" (3/4) ... [2020-07-01 10:54:23,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e00098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:54:23" (4/4) ... [2020-07-01 10:54:23,828 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:54:23,839 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:54:23,847 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:54:23,861 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:54:23,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:54:23,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:54:23,884 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:54:23,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:54:23,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:54:23,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:54:23,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:54:23,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:54:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 10:54:23,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:54:23,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 10:54:23,962 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:54:23,963 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 14) the Hoare annotation is: true [2020-07-01 10:54:23,963 INFO L271 CegarLoopResult]: At program point L10-2(lines 10 16) the Hoare annotation is: true [2020-07-01 10:54:23,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:54:23 BasicIcfg [2020-07-01 10:54:23,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:54:23,973 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:54:23,973 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:54:23,976 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:54:23,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:54:23,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:54:23" (1/5) ... [2020-07-01 10:54:23,978 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53723d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:54:23,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:54:23" (2/5) ... [2020-07-01 10:54:23,979 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53723d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:54:23,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:54:23" (3/5) ... [2020-07-01 10:54:23,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53723d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:54:23,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:54:23" (4/5) ... [2020-07-01 10:54:23,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53723d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:54:23, skipping insertion in model container [2020-07-01 10:54:23,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:54:23,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:54:23" (5/5) ... [2020-07-01 10:54:23,982 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:54:24,012 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:54:24,012 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:54:24,012 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:54:24,012 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:54:24,012 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:54:24,013 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:54:24,013 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:54:24,013 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:54:24,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:54:24,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:54:24,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:54:24,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:54:24,039 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:54:24,039 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:54:24,039 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:54:24,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:54:24,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:54:24,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:54:24,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:54:24,040 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:54:24,041 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:54:24,046 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L10-2true [2020-07-01 10:54:24,046 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_9) (< v_ULTIMATE.start_main_~i~0_9 10)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 3#L12-2true [45] L12-2-->L10-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1)) (<= 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_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L10-2true [2020-07-01 10:54:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:24,053 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 10:54:24,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:24,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870651730] [2020-07-01 10:54:24,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,135 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:24,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times [2020-07-01 10:54:24,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:24,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254999093] [2020-07-01 10:54:24,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:24,155 INFO L82 PathProgramCache]: Analyzing trace with hash 63719, now seen corresponding path program 1 times [2020-07-01 10:54:24,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:24,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576744437] [2020-07-01 10:54:24,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:24,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:24,222 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:54:24,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:54:24,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:54:24,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:54:24,224 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:54:24,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:24,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:54:24,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:54:24,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:54:24,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:54:24,225 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:54:24,244 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 10:54:24,255 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 10:54:24,260 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 10:54:24,342 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:54:24,343 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 10:54:24,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:24,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:24,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:24,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:54:24,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:24,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:24,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:24,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:54:24,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:24,431 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:24,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:54:24,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:24,606 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:54:24,609 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:54:24,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:54:24,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:54:24,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:54:24,621 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:54:24,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:54:24,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:54:24,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:54:24,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:54:24,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:54:24,622 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:54:24,624 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 10:54:24,630 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 10:54:24,635 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 10:54:24,709 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:54:24,715 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 10:54:24,722 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 10:54:24,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:54:24,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:54:24,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:54:24,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:54:24,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:54:24,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:54:24,739 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 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 10:54:24,772 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 10:54:24,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:54:24,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:54:24,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:54:24,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:54:24,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:54:24,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:54:24,784 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 10:54:24,817 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 10:54:24,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:54:24,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:54:24,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:54:24,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:54:24,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:54:24,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:54:24,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:54:24,826 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:54:24,832 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:54:24,832 INFO L444 ModelExtractionUtils]: 1 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 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 10:54:24,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:54:24,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:54:24,838 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:54:24,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-07-01 10:54:24,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:54:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:54:24,916 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:54:24,917 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:54:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:54:24,930 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:54:24,930 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:54:24,952 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 10:54:24,985 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:54:24,990 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 10:54:24,992 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 10:54:25,026 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 10:54:25,027 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 10:54:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:54:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 10:54:25,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:54:25,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:54:25,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:54:25,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:54:25,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:54:25,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:54:25,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 10:54:25,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:54:25,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 10:54:25,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 10:54:25,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 10:54:25,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 10:54:25,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:54:25,047 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 10:54:25,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 10:54:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 10:54:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:54:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 10:54:25,075 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 10:54:25,075 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 10:54:25,075 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:54:25,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 10:54:25,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:54:25,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:54:25,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:54:25,077 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:54:25,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:54:25,077 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 46#L10-2 [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~i~0_9) (< v_ULTIMATE.start_main_~i~0_9 10)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 42#L12-2 [2020-07-01 10:54:25,077 INFO L796 eck$LassoCheckResult]: Loop: 42#L12-2 [33] L12-2-->L12-2: Formula: (and (< 0 v_ULTIMATE.start_main_~j~0_6) (= v_ULTIMATE.start_main_~j~0_5 (+ v_ULTIMATE.start_main_~j~0_6 1))) 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} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 42#L12-2 [2020-07-01 10:54:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-07-01 10:54:25,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:25,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070275510] [2020-07-01 10:54:25,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:25,086 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 10:54:25,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:25,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759896833] [2020-07-01 10:54:25,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,093 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:54:25,093 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times [2020-07-01 10:54:25,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:54:25,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588623861] [2020-07-01 10:54:25,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:54:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:54:25,104 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:54:25,114 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:54:25,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:54:25,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:54:25,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:54:25,115 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:54:25,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:54:25,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:54:25,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:54:25,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:54:25,115 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:54:25,117 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 10:54:25,120 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 10:54:25,128 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 10:54:25,169 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:54:25,169 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,181 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,215 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:54:25,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,265 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1} Honda state: {ULTIMATE.start_main_~j~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~j~0=1}, {ULTIMATE.start_main_~j~0=0}] Lambdas: [3, 1, 1] Nus: [0, 1] 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 10:54:25,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,304 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,304 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:54:25,355 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:54:25,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:54:25,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:54:25,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:54:25,356 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:54:25,356 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:54:25,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:54:25,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 10:54:25,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:54:25,357 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:54:25,358 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 10:54:25,362 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 10:54:25,366 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 10:54:25,370 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 10:54:25,373 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 10:54:25,445 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:54:25,445 INFO L404 LassoAnalysis]: Checking for nontermination... 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 10:54:25,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:54:25,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,499 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,579 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:54:25,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:54:25,614 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:54:25,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:54:25,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:54:25,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:54:25,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~j~0=2} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=8, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~j~0=0}, {ULTIMATE.start_main_~i~0=-8, ULTIMATE.start_main_~j~0=1}] Lambdas: [1, 26, 1] Nus: [0, 0] [2020-07-01 10:54:25,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:54:25 BasicIcfg [2020-07-01 10:54:25,726 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:54:25,730 INFO L168 Benchmark]: Toolchain (without parser) took 2531.65 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 561.7 MB in the beginning and 450.5 MB in the end (delta: 111.2 MB). Peak memory consumption was 148.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,731 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 10:54:25,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.70 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 561.7 MB in the beginning and 650.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.97 ms. Allocated memory is still 686.8 MB. Free memory was 650.1 MB in the beginning and 648.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,733 INFO L168 Benchmark]: Boogie Preprocessor took 19.32 ms. Allocated memory is still 686.8 MB. Free memory was 648.8 MB in the beginning and 647.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,734 INFO L168 Benchmark]: RCFGBuilder took 213.76 ms. Allocated memory is still 686.8 MB. Free memory was 647.4 MB in the beginning and 633.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,734 INFO L168 Benchmark]: BlockEncodingV2 took 70.44 ms. Allocated memory is still 686.8 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,735 INFO L168 Benchmark]: TraceAbstraction took 151.29 ms. Allocated memory is still 686.8 MB. Free memory was 627.8 MB in the beginning and 619.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,736 INFO L168 Benchmark]: BuchiAutomizer took 1753.89 ms. Allocated memory is still 686.8 MB. Free memory was 618.3 MB in the beginning and 450.5 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:54:25,741 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 283.70 ms. Allocated memory was 649.6 MB in the beginning and 686.8 MB in the end (delta: 37.2 MB). Free memory was 561.7 MB in the beginning and 650.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.97 ms. Allocated memory is still 686.8 MB. Free memory was 650.1 MB in the beginning and 648.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.32 ms. Allocated memory is still 686.8 MB. Free memory was 648.8 MB in the beginning and 647.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 213.76 ms. Allocated memory is still 686.8 MB. Free memory was 647.4 MB in the beginning and 633.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.44 ms. Allocated memory is still 686.8 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.29 ms. Allocated memory is still 686.8 MB. Free memory was 627.8 MB in the beginning and 619.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1753.89 ms. Allocated memory is still 686.8 MB. Free memory was 618.3 MB in the beginning and 450.5 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: 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 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * i + 1 and consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax194 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 12]: Nontermination argument in form of an infinite program execution. [2020-07-01 10:54:25,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 10:54:25,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 10:54:25,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60799c66=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60799c66=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=2, j=2} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60799c66=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=2 + sum_{k=0}^i 8 + -8, j=2 + sum_{k=0}^i 1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 26, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = __VERIFIER_nondet_int() [L10] COND TRUE i < 10 [L11] j = i Loop: [L12] COND TRUE j > 0 [L13] j = j+1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:54:19.861 ----------------------------------------------- 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_IsqOUj/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:54:26.185 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check