/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 11:22:39,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:22:39,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:22:39,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:22:39,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:22:39,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:22:39,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:22:39,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:22:39,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:22:39,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:22:39,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:22:39,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:22:39,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:22:39,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:22:39,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:22:39,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:22:39,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:22:39,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:22:39,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:22:39,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:22:39,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:22:39,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:22:39,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:22:39,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:22:39,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:22:39,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:22:39,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:22:39,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:22:39,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:22:39,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:22:39,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:22:39,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:22:39,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:22:39,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:22:39,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:22:39,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:22:39,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:22:39,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:22:39,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:22:39,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:22:39,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:22:39,081 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:22:39,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:22:39,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:22:39,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:22:39,097 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:22:39,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:22:39,097 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:22:39,098 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:22:39,098 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:22:39,098 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:22:39,098 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:22:39,098 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:22:39,098 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:22:39,099 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:22:39,099 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:22:39,099 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:39,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:22:39,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:22:39,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:22:39,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:22:39,100 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:22:39,100 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:22:39,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:22:39,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:22:39,101 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:22:39,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:22:39,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:22:39,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:22:39,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:22:39,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:22:39,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:22:39,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:22:39,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:22:39,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:22:39,293 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:22:39,294 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:22:39,356 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_hAmRL5/tmp/7adb31d6fe1c4c8ab41c99c06285dccd/FLAG713a687c2 [2020-07-01 11:22:39,694 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:22:39,694 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:22:39,701 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_hAmRL5/tmp/7adb31d6fe1c4c8ab41c99c06285dccd/FLAG713a687c2 [2020-07-01 11:22:40,142 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_hAmRL5/tmp/7adb31d6fe1c4c8ab41c99c06285dccd [2020-07-01 11:22:40,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:22:40,155 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:22:40,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:22:40,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:22:40,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:22:40,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f2d3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:22:40,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:22:40,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:22:40,419 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:22:40,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:22:40,448 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:22:40,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40 WrapperNode [2020-07-01 11:22:40,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:22:40,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:22:40,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:22:40,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:22:40,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:22:40,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:22:40,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:22:40,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:22:40,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:22:40,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:22:40,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:22:40,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:22:40,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:22:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:22:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:22:40,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:22:40,722 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:22:40,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:22:40 BoogieIcfgContainer [2020-07-01 11:22:40,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:22:40,726 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:22:40,726 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:22:40,728 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:22:40,729 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:22:40" (1/1) ... [2020-07-01 11:22:40,741 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 11:22:40,743 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:22:40,743 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:22:40,744 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:22:40,744 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:22:40,746 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:22:40,748 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:22:40,748 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:22:40,761 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:22:40,768 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:22:40,773 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:22:40,775 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:22:40,786 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:22:40,788 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:22:40,790 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:22:40,790 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:22:40,790 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:22:40,790 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:22:40,791 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 11:22:40,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:22:40 BasicIcfg [2020-07-01 11:22:40,791 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:22:40,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:22:40,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:22:40,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:22:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:22:40" (1/4) ... [2020-07-01 11:22:40,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307cc952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (2/4) ... [2020-07-01 11:22:40,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307cc952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:22:40" (3/4) ... [2020-07-01 11:22:40,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307cc952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:22:40" (4/4) ... [2020-07-01 11:22:40,800 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:22:40,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:22:40,817 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:22:40,831 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:22:40,854 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:22:40,854 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:22:40,854 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:22:40,854 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:22:40,854 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:22:40,855 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:22:40,855 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:22:40,855 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:22:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:22:40,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:22:40,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:22:40,929 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:22:40,929 INFO L271 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: true [2020-07-01 11:22:40,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:22:40 BasicIcfg [2020-07-01 11:22:40,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:22:40,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:22:40,937 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:22:40,941 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:22:40,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:22:40,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:22:40" (1/5) ... [2020-07-01 11:22:40,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a5f9d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:22:40,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:22:40" (2/5) ... [2020-07-01 11:22:40,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a5f9d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:22:40,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:22:40" (3/5) ... [2020-07-01 11:22:40,944 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a5f9d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:22:40,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:22:40" (4/5) ... [2020-07-01 11:22:40,944 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a5f9d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:22:40, skipping insertion in model container [2020-07-01 11:22:40,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:22:40,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:22:40" (5/5) ... [2020-07-01 11:22:40,946 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:22:40,974 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:22:40,974 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:22:40,974 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:22:40,974 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:22:40,974 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:22:40,974 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:22:40,975 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:22:40,975 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:22:40,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:22:40,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:22:40,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:22:40,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:22:41,000 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:22:41,001 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:22:41,001 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:22:41,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:22:41,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:22:41,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:22:41,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:22:41,002 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:22:41,002 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:22:41,007 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [21] ULTIMATE.startENTRY-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-07-01 11:22:41,007 INFO L796 eck$LassoCheckResult]: Loop: 3#L23-2true [20] L23-2-->L23-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_5 (+ v_ULTIMATE.start_main_~y~0_4 1)) (< v_ULTIMATE.start_main_~x~0_6 0) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 v_ULTIMATE.start_main_~y~0_5))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_4, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3#L23-2true [2020-07-01 11:22:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:22:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2020-07-01 11:22:41,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:22:41,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096938636] [2020-07-01 11:22:41,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:22:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:22:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:22:41,088 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-07-01 11:22:41,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:22:41,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817390914] [2020-07-01 11:22:41,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:22:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:22:41,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:22:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1632, now seen corresponding path program 1 times [2020-07-01 11:22:41,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:22:41,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262136190] [2020-07-01 11:22:41,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:22:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:22:41,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:22:41,168 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:22:41,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:22:41,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:22:41,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:22:41,169 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:22:41,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:22:41,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:22:41,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:22:41,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:22:41,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:22:41,190 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 11:22:41,209 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 11:22:41,266 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:22:41,266 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,274 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:22:41,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 0] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,443 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,443 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:22:41,489 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:22:41,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:22:41,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:22:41,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:22:41,489 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:22:41,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:22:41,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:22:41,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:22:41,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:22:41,490 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:22:41,492 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 11:22:41,500 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 11:22:41,506 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 11:22:41,510 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 11:22:41,513 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 11:22:41,589 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:22:41,589 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,601 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,639 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:22:41,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 11:22:41,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:22:41,743 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:22:41,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:22:41,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:22:41,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:22:41,862 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-1} Honda state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 1, 0] Nus: [1, 0] [2020-07-01 11:22:41,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:22:41 BasicIcfg [2020-07-01 11:22:41,911 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:22:41,914 INFO L168 Benchmark]: Toolchain (without parser) took 1758.11 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 562.9 MB in the beginning and 538.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 58.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,914 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:22:41,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.15 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 562.9 MB in the beginning and 648.6 MB in the end (delta: -85.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 683.7 MB. Free memory was 648.6 MB in the beginning and 646.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,916 INFO L168 Benchmark]: Boogie Preprocessor took 19.54 ms. Allocated memory is still 683.7 MB. Free memory was 646.5 MB in the beginning and 645.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,917 INFO L168 Benchmark]: RCFGBuilder took 221.92 ms. Allocated memory is still 683.7 MB. Free memory was 645.4 MB in the beginning and 630.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,917 INFO L168 Benchmark]: BlockEncodingV2 took 65.55 ms. Allocated memory is still 683.7 MB. Free memory was 630.7 MB in the beginning and 626.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,918 INFO L168 Benchmark]: TraceAbstraction took 144.32 ms. Allocated memory is still 683.7 MB. Free memory was 625.3 MB in the beginning and 616.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,919 INFO L168 Benchmark]: BuchiAutomizer took 973.68 ms. Allocated memory is still 683.7 MB. Free memory was 616.7 MB in the beginning and 538.3 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:22:41,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 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 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.15 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 562.9 MB in the beginning and 648.6 MB in the end (delta: -85.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 683.7 MB. Free memory was 648.6 MB in the beginning and 646.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.54 ms. Allocated memory is still 683.7 MB. Free memory was 646.5 MB in the beginning and 645.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 221.92 ms. Allocated memory is still 683.7 MB. Free memory was 645.4 MB in the beginning and 630.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 65.55 ms. Allocated memory is still 683.7 MB. Free memory was 630.7 MB in the beginning and 626.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.32 ms. Allocated memory is still 683.7 MB. Free memory was 625.3 MB in the beginning and 616.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 973.68 ms. Allocated memory is still 683.7 MB. Free memory was 616.7 MB in the beginning and 538.3 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60454a67=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463eae4f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@556e1be8=0, x=-1, y=-1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60454a67=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463eae4f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@556e1be8=0, x=-1, y=-1} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60454a67=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463eae4f=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@556e1be8=0 + sum_{k=0}^i 0, x=-1 + sum_{k=0}^i -1 + -1*k, y=-1 + sum_{k=0}^i -1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 1, 0] Mus: [1, 0] - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int x = __VERIFIER_nondet_int(); [L22] int y = __VERIFIER_nondet_int(); Loop: [L23] COND TRUE x < 0 [L24] x = x + y [L25] y-- End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:22:36.845 ----------------------------------------------- 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_hAmRL5/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:22:42.159 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check