/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:21:21,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:21:21,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:21:21,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:21:21,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:21:21,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:21:21,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:21:21,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:21:21,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:21:21,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:21:21,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:21:21,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:21:21,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:21:21,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:21:21,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:21:21,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:21:21,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:21:21,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:21:21,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:21:21,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:21:21,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:21:21,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:21:21,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:21:21,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:21:21,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:21:21,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:21:21,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:21:21,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:21:21,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:21:21,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:21:21,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:21:21,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:21:21,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:21:21,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:21:21,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:21:21,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:21:21,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:21:21,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:21:21,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:21:21,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:21:21,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:21:21,070 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:21:21,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:21:21,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:21:21,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:21:21,085 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:21:21,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:21:21,086 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:21:21,086 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:21:21,086 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:21:21,086 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:21:21,086 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:21:21,087 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:21:21,087 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:21:21,087 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:21:21,087 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:21:21,087 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:21:21,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:21:21,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:21:21,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:21:21,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:21:21,088 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:21:21,088 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:21:21,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:21:21,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:21:21,089 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:21:21,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:21:21,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:21:21,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:21:21,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:21:21,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:21:21,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:21:21,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:21:21,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:21:21,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:21:21,272 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:21:21,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:21:21,336 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ntUBJx/tmp/f5f92db2e645452ca8d4b91ebf642ecd/FLAG3ed62e32d [2020-07-01 12:21:21,664 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:21:21,664 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:21:21,671 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ntUBJx/tmp/f5f92db2e645452ca8d4b91ebf642ecd/FLAG3ed62e32d [2020-07-01 12:21:22,059 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_ntUBJx/tmp/f5f92db2e645452ca8d4b91ebf642ecd [2020-07-01 12:21:22,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:21:22,072 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:21:22,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:21:22,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:21:22,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:21:22,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303d7a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:21:22,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:21:22,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:21:22,329 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:21:22,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:21:22,359 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:21:22,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22 WrapperNode [2020-07-01 12:21:22,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:21:22,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:21:22,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:21:22,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:21:22,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:21:22,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:21:22,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:21:22,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:21:22,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:21:22,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:21:22,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:21:22,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:21:22,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:21:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-01 12:21:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-01 12:21:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:21:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:21:22,644 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:21:22,644 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 12:21:22,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:21:22 BoogieIcfgContainer [2020-07-01 12:21:22,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:21:22,649 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:21:22,649 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:21:22,651 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:21:22,652 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:21:22" (1/1) ... [2020-07-01 12:21:22,665 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 17 edges [2020-07-01 12:21:22,667 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:21:22,668 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:21:22,668 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:21:22,669 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:21:22,670 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:21:22,671 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:21:22,671 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:21:22,685 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:21:22,698 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:21:22,702 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:21:22,704 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:21:22,712 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:21:22,714 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states [2020-07-01 12:21:22,716 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:21:22,716 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:21:22,721 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:21:22,722 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:21:22,722 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:21:22,722 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:21:22,722 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:21:22,723 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:21:22,723 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 12 edges [2020-07-01 12:21:22,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:21:22 BasicIcfg [2020-07-01 12:21:22,724 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:21:22,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:21:22,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:21:22,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:21:22,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:21:22" (1/4) ... [2020-07-01 12:21:22,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c0c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (2/4) ... [2020-07-01 12:21:22,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c0c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:21:22" (3/4) ... [2020-07-01 12:21:22,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c0c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:21:22" (4/4) ... [2020-07-01 12:21:22,732 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:21:22,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:21:22,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:21:22,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:21:22,786 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:21:22,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:21:22,786 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:21:22,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:21:22,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:21:22,787 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:21:22,787 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:21:22,787 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:21:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-01 12:21:22,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:21:22,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-07-01 12:21:22,879 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-01 12:21:22,879 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-07-01 12:21:22,879 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-07-01 12:21:22,879 INFO L268 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-07-01 12:21:22,880 INFO L268 CegarLoopResult]: For program point gEXIT(lines 10 16) no Hoare annotation was computed. [2020-07-01 12:21:22,880 INFO L268 CegarLoopResult]: For program point gFINAL(lines 10 16) no Hoare annotation was computed. [2020-07-01 12:21:22,880 INFO L271 CegarLoopResult]: At program point gENTRY(lines 10 16) the Hoare annotation is: true [2020-07-01 12:21:22,880 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:21:22,888 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-01 12:21:22,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:21:22 BasicIcfg [2020-07-01 12:21:22,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:21:22,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:21:22,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:21:22,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:21:22,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:21:22,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:21:22" (1/5) ... [2020-07-01 12:21:22,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e0e0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:21:22,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:21:22" (2/5) ... [2020-07-01 12:21:22,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e0e0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:21:22,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:21:22" (3/5) ... [2020-07-01 12:21:22,900 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e0e0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:21:22,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:21:22" (4/5) ... [2020-07-01 12:21:22,901 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e0e0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:21:22, skipping insertion in model container [2020-07-01 12:21:22,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:21:22,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:21:22" (5/5) ... [2020-07-01 12:21:22,903 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:21:22,932 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:21:22,932 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:21:22,932 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:21:22,933 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:21:22,933 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:21:22,933 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:21:22,933 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:21:22,933 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:21:22,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 12:21:22,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:21:22,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:21:22,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:21:22,965 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:21:22,965 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:21:22,965 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:21:22,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-07-01 12:21:22,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:21:22,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:21:22,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:21:22,967 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:21:22,967 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:21:22,972 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [49] ULTIMATE.startENTRY-->L21: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_8) InVars {} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3] 3#L21true [34] L21-->gENTRY: Formula: (= |v_g_#in~xInParam_3| v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{g_#in~x=|v_g_#in~xInParam_3|} AuxVars[] AssignedVars[g_#in~x]< 6#gENTRYtrue [2020-07-01 12:21:22,972 INFO L796 eck$LassoCheckResult]: Loop: 6#gENTRYtrue [36] gENTRY-->L12: Formula: (= v_g_~x_1 |v_g_#in~x_1|) InVars {g_#in~x=|v_g_#in~x_1|} OutVars{g_#in~x=|v_g_#in~x_1|, g_~x=v_g_~x_1} AuxVars[] AssignedVars[g_~x] 4#L12true [46] L12-->L15: Formula: (> 0 v_g_~x_3) InVars {g_~x=v_g_~x_3} OutVars{g_~x=v_g_~x_3} AuxVars[] AssignedVars[] 8#L15true [37] L15-->gENTRY: Formula: (= |v_g_#in~xInParam_1| (+ v_g_~x_5 (- 1))) InVars {g_~x=v_g_~x_5} OutVars{g_#in~x=|v_g_#in~xInParam_1|} AuxVars[] AssignedVars[g_#in~x]< 6#gENTRYtrue [2020-07-01 12:21:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:21:22,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2514, now seen corresponding path program 1 times [2020-07-01 12:21:22,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:21:22,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204247665] [2020-07-01 12:21:22,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:21:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:21:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:21:23,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:21:23,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:21:23,065 INFO L82 PathProgramCache]: Analyzing trace with hash 65850, now seen corresponding path program 1 times [2020-07-01 12:21:23,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:21:23,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132499192] [2020-07-01 12:21:23,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:21:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:21:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:21:23,077 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:21:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:21:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash 74930633, now seen corresponding path program 1 times [2020-07-01 12:21:23,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:21:23,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114894161] [2020-07-01 12:21:23,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:21:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:21:23,146 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 12:21:23,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114894161] [2020-07-01 12:21:23,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:21:23,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 12:21:23,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36822953] [2020-07-01 12:21:23,214 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:21:23,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:21:23,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:21:23,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:21:23,215 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:21:23,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:21:23,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:21:23,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:21:23,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:21:23,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:21:23,216 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:21:23,231 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 12:21:23,238 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 12:21:23,241 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 12:21:23,246 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 12:21:23,249 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 12:21:23,310 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:21:23,311 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:21:23,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:21:23,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:21:23,340 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:21:23,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~x=0} Honda state: {g_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:21:23,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:21:23,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:21:23,378 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:21:23,378 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:21:23,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:21:23,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:21:23,415 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:21:23,415 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 12:21:23,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:21:23,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:21:23,452 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:21:23,452 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret0=0} Honda state: {g_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 12:21:23,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:21:23,484 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 12:21:23,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:21:23,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:21:23,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:21:23,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~x=-1} Honda state: {g_#in~x=-1} Generalized eigenvectors: [{g_#in~x=0}, {g_#in~x=0}, {g_#in~x=-1}] Lambdas: [0, 8, 1] Nus: [0, 0] [2020-07-01 12:21:23,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:21:23,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 12:21:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:21:23,585 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2020-07-01 12:21:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:21:23,680 INFO L93 Difference]: Finished difference Result 21 states and 33 transitions. [2020-07-01 12:21:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 12:21:23,683 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: unknown kind of automaton at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.toString(AutomatonDefinitionPrinter.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.TermcompProofBenchmark.reportFiniteModule(TermcompProofBenchmark.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:978) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 12:21:23,688 INFO L168 Benchmark]: Toolchain (without parser) took 1615.00 ms. Allocated memory was 649.6 MB in the beginning and 696.8 MB in the end (delta: 47.2 MB). Free memory was 562.7 MB in the beginning and 557.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,688 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:21:23,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.78 ms. Allocated memory was 649.6 MB in the beginning and 696.8 MB in the end (delta: 47.2 MB). Free memory was 562.7 MB in the beginning and 660.8 MB in the end (delta: -98.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.41 ms. Allocated memory is still 696.8 MB. Free memory was 660.8 MB in the beginning and 658.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,690 INFO L168 Benchmark]: Boogie Preprocessor took 17.80 ms. Allocated memory is still 696.8 MB. Free memory was 658.6 MB in the beginning and 657.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,691 INFO L168 Benchmark]: RCFGBuilder took 235.32 ms. Allocated memory is still 696.8 MB. Free memory was 657.5 MB in the beginning and 642.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,692 INFO L168 Benchmark]: BlockEncodingV2 took 74.95 ms. Allocated memory is still 696.8 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,692 INFO L168 Benchmark]: TraceAbstraction took 167.79 ms. Allocated memory is still 696.8 MB. Free memory was 637.4 MB in the beginning and 626.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,693 INFO L168 Benchmark]: BuchiAutomizer took 792.07 ms. Allocated memory is still 696.8 MB. Free memory was 626.6 MB in the beginning and 557.5 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:21:23,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 17 edges - StatisticsResult: Encoded RCFG 9 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 286.78 ms. Allocated memory was 649.6 MB in the beginning and 696.8 MB in the end (delta: 47.2 MB). Free memory was 562.7 MB in the beginning and 660.8 MB in the end (delta: -98.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.41 ms. Allocated memory is still 696.8 MB. Free memory was 660.8 MB in the beginning and 658.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.80 ms. Allocated memory is still 696.8 MB. Free memory was 658.6 MB in the beginning and 657.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 235.32 ms. Allocated memory is still 696.8 MB. Free memory was 657.5 MB in the beginning and 642.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.95 ms. Allocated memory is still 696.8 MB. Free memory was 642.8 MB in the beginning and 637.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 167.79 ms. Allocated memory is still 696.8 MB. Free memory was 637.4 MB in the beginning and 626.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 792.07 ms. Allocated memory is still 696.8 MB. Free memory was 626.6 MB in the beginning and 557.5 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 9 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=9occurred 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, 4 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 4 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: unknown kind of automaton de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: unknown kind of automaton: de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-07-01 12:21:18.853 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_ntUBJx/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:21:23.930 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check