/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:50:22,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:50:22,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:50:22,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:50:22,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:50:22,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:50:22,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:50:22,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:50:22,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:50:22,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:50:22,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:50:22,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:50:22,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:50:22,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:50:22,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:50:22,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:50:22,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:50:22,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:50:22,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:50:22,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:50:22,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:50:22,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:50:22,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:50:22,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:50:22,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:50:22,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:50:22,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:50:22,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:50:22,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:50:22,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:50:22,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:50:22,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:50:22,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:50:22,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:50:22,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:50:22,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:50:22,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:50:22,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:50:22,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:50:22,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:50:22,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:50:22,051 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:50:22,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:50:22,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:50:22,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:50:22,066 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:50:22,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:50:22,067 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:50:22,067 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:50:22,067 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:50:22,067 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:50:22,067 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:50:22,068 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:50:22,068 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:50:22,068 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:50:22,068 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:50:22,068 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:50:22,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:50:22,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:50:22,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:50:22,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:50:22,069 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:50:22,069 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:50:22,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:50:22,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:50:22,070 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:50:22,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:50:22,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:50:22,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:50:22,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:50:22,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:50:22,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:50:22,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:50:22,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:50:22,252 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:50:22,252 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:50:22,253 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:50:22,315 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_dE53dG/tmp/124d321c45054d5093806a602fc5812c/FLAG9e1554192 [2020-07-01 10:50:22,674 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:50:22,675 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:50:22,684 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_dE53dG/tmp/124d321c45054d5093806a602fc5812c/FLAG9e1554192 [2020-07-01 10:50:23,085 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_dE53dG/tmp/124d321c45054d5093806a602fc5812c [2020-07-01 10:50:23,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:50:23,097 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:50:23,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:50:23,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:50:23,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:50:23,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efe71c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23, skipping insertion in model container [2020-07-01 10:50:23,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:50:23,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:50:23,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:50:23,428 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:50:23,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:50:23,487 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:50:23,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23 WrapperNode [2020-07-01 10:50:23,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:50:23,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:50:23,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:50:23,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:50:23,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:50:23,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:50:23,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:50:23,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:50:23,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... [2020-07-01 10:50:23,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:50:23,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:50:23,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:50:23,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:50:23,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:50:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_msg_t [2020-07-01 10:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:50:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:50:24,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:50:24,039 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-07-01 10:50:24,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:24 BoogieIcfgContainer [2020-07-01 10:50:24,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:50:24,044 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:50:24,044 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:50:24,046 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:50:24,047 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:24" (1/1) ... [2020-07-01 10:50:24,064 INFO L313 BlockEncoder]: Initial Icfg 60 locations, 100 edges [2020-07-01 10:50:24,066 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:50:24,067 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:50:24,067 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:50:24,068 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:50:24,069 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:50:24,070 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:50:24,070 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:50:24,108 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:50:24,147 INFO L200 BlockEncoder]: SBE split 37 edges [2020-07-01 10:50:24,152 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 10:50:24,154 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:50:24,171 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:50:24,173 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 10:50:24,175 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:50:24,175 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:50:24,175 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:50:24,176 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:50:24,176 INFO L313 BlockEncoder]: Encoded RCFG 55 locations, 136 edges [2020-07-01 10:50:24,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:24 BasicIcfg [2020-07-01 10:50:24,177 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:50:24,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:50:24,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:50:24,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:50:24,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:50:23" (1/4) ... [2020-07-01 10:50:24,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5dff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (2/4) ... [2020-07-01 10:50:24,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5dff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:24" (3/4) ... [2020-07-01 10:50:24,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5dff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:24" (4/4) ... [2020-07-01 10:50:24,186 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:50:24,196 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:50:24,204 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:50:24,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:50:24,241 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:50:24,241 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:50:24,241 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:50:24,241 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:50:24,242 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:50:24,242 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:50:24,242 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:50:24,242 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:50:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-07-01 10:50:24,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:50:24,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 55 states. [2020-07-01 10:50:24,332 INFO L268 CegarLoopResult]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2020-07-01 10:50:24,332 INFO L268 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L192(lines 192 196) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L159(lines 159 161) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L254(lines 254 266) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L188(lines 188 208) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L155(lines 155 162) no Hoare annotation was computed. [2020-07-01 10:50:24,333 INFO L268 CegarLoopResult]: For program point L155-1(lines 155 162) no Hoare annotation was computed. [2020-07-01 10:50:24,334 INFO L268 CegarLoopResult]: For program point L250(lines 250 269) no Hoare annotation was computed. [2020-07-01 10:50:24,334 INFO L268 CegarLoopResult]: For program point L250-1(lines 250 269) no Hoare annotation was computed. [2020-07-01 10:50:24,334 INFO L268 CegarLoopResult]: For program point L184(lines 184 220) no Hoare annotation was computed. [2020-07-01 10:50:24,334 INFO L268 CegarLoopResult]: For program point L180(lines 180 232) no Hoare annotation was computed. [2020-07-01 10:50:24,334 INFO L271 CegarLoopResult]: At program point L242(lines 172 244) the Hoare annotation is: true [2020-07-01 10:50:24,334 INFO L268 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-07-01 10:50:24,335 INFO L271 CegarLoopResult]: At program point L325-2(lines 325 329) the Hoare annotation is: true [2020-07-01 10:50:24,335 INFO L268 CegarLoopResult]: For program point L131(lines 131 136) no Hoare annotation was computed. [2020-07-01 10:50:24,335 INFO L268 CegarLoopResult]: For program point L259(lines 259 263) no Hoare annotation was computed. [2020-07-01 10:50:24,335 INFO L268 CegarLoopResult]: For program point L127(lines 127 142) no Hoare annotation was computed. [2020-07-01 10:50:24,335 INFO L271 CegarLoopResult]: At program point L255(lines 251 266) the Hoare annotation is: true [2020-07-01 10:50:24,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:50:24,336 INFO L268 CegarLoopResult]: For program point L189(lines 189 205) no Hoare annotation was computed. [2020-07-01 10:50:24,336 INFO L271 CegarLoopResult]: At program point L127-2(lines 121 145) the Hoare annotation is: true [2020-07-01 10:50:24,336 INFO L268 CegarLoopResult]: For program point L156(lines 156 161) no Hoare annotation was computed. [2020-07-01 10:50:24,336 INFO L268 CegarLoopResult]: For program point L251(lines 251 266) no Hoare annotation was computed. [2020-07-01 10:50:24,336 INFO L268 CegarLoopResult]: For program point L185(lines 185 217) no Hoare annotation was computed. [2020-07-01 10:50:24,336 INFO L268 CegarLoopResult]: For program point L152(lines 152 167) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L271 CegarLoopResult]: At program point L152-2(lines 146 170) the Hoare annotation is: true [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L181(lines 181 229) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L177(lines 177 241) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L177-1(lines 177 241) no Hoare annotation was computed. [2020-07-01 10:50:24,337 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L107(lines 107 111) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L140-2(line 140) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L103(lines 103 112) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L103-1(lines 103 112) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L99(lines 99 117) no Hoare annotation was computed. [2020-07-01 10:50:24,338 INFO L268 CegarLoopResult]: For program point L165-2(line 165) no Hoare annotation was computed. [2020-07-01 10:50:24,339 INFO L271 CegarLoopResult]: At program point L99-2(lines 93 120) the Hoare annotation is: true [2020-07-01 10:50:24,339 INFO L268 CegarLoopResult]: For program point L190(lines 190 202) no Hoare annotation was computed. [2020-07-01 10:50:24,339 INFO L268 CegarLoopResult]: For program point L186(lines 186 214) no Hoare annotation was computed. [2020-07-01 10:50:24,339 INFO L268 CegarLoopResult]: For program point L182(lines 182 226) no Hoare annotation was computed. [2020-07-01 10:50:24,339 INFO L268 CegarLoopResult]: For program point L178(lines 178 238) no Hoare annotation was computed. [2020-07-01 10:50:24,339 INFO L271 CegarLoopResult]: At program point L302-2(lines 302 317) the Hoare annotation is: true [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L104(lines 104 111) no Hoare annotation was computed. [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L191(lines 191 199) no Hoare annotation was computed. [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L187(lines 187 211) no Hoare annotation was computed. [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L183(lines 183 223) no Hoare annotation was computed. [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L179(lines 179 235) no Hoare annotation was computed. [2020-07-01 10:50:24,340 INFO L271 CegarLoopResult]: At program point L270(lines 245 272) the Hoare annotation is: true [2020-07-01 10:50:24,340 INFO L268 CegarLoopResult]: For program point L332(lines 332 343) no Hoare annotation was computed. [2020-07-01 10:50:24,341 INFO L268 CegarLoopResult]: For program point L134(lines 134 136) no Hoare annotation was computed. [2020-07-01 10:50:24,341 INFO L268 CegarLoopResult]: For program point L130(lines 130 137) no Hoare annotation was computed. [2020-07-01 10:50:24,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:24 BasicIcfg [2020-07-01 10:50:24,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:50:24,351 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:50:24,351 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:50:24,354 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:50:24,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:24,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:50:23" (1/5) ... [2020-07-01 10:50:24,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:24,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:23" (2/5) ... [2020-07-01 10:50:24,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:24,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:24" (3/5) ... [2020-07-01 10:50:24,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:24,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:24" (4/5) ... [2020-07-01 10:50:24,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0a56ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:24, skipping insertion in model container [2020-07-01 10:50:24,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:24,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:24" (5/5) ... [2020-07-01 10:50:24,359 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:50:24,385 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:50:24,385 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:50:24,385 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:50:24,385 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:50:24,385 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:50:24,386 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:50:24,386 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:50:24,386 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:50:24,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states. [2020-07-01 10:50:24,412 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2020-07-01 10:50:24,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:50:24,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:50:24,420 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 10:50:24,420 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:50:24,420 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:50:24,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states. [2020-07-01 10:50:24,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2020-07-01 10:50:24,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:50:24,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:50:24,425 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 10:50:24,425 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:50:24,431 INFO L794 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRYtrue [497] ULTIMATE.startENTRY-->L177: Formula: (and (= 0 v_~p2_new~0_8) (= 0 v_~p2~0_2) (= 0 v_~p1~0_2) (= 0 v_~p2_old~0_6) (= 0 v_ULTIMATE.start_main_~c1~0_7) (= (- 1) v_~nomsg~0_22) (= 0 v_~p1_new~0_8) (= (store (store (store v_~nodes~0.offset_6 0 |#funAddr~node1.offset|) 1 |#funAddr~node2.offset|) 2 |#funAddr~node3.offset|) v_~nodes~0.offset_5) (= v_~p1_old~0_6 0) (= 0 v_~p3_old~0_6) (= 0 v_~p3_new~0_8) (= 0 v_~p3~0_2) (= (store (store (store v_~nodes~0.base_6 0 |#funAddr~node1.base|) 1 |#funAddr~node2.base|) 2 |#funAddr~node3.base|) v_~nodes~0.base_5)) InVars {~nodes~0.offset=v_~nodes~0.offset_6, ~nodes~0.base=v_~nodes~0.base_6} OutVars{~id1~0=v_~id1~0_15, ULTIMATE.start_main_#t~nondet11=|v_ULTIMATE.start_main_#t~nondet11_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet13=|v_ULTIMATE.start_main_#t~nondet13_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_4|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_6|, ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_6|, ULTIMATE.start_main_~c1~0=v_ULTIMATE.start_main_~c1~0_7, ~p2~0=v_~p2~0_2, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_6|, ~id3~0=v_~id3~0_15, ~mode2~0=v_~mode2~0_9, ~st3~0=v_~st3~0_12, ~r1~0=v_~r1~0_11, ~st1~0=v_~st1~0_12, ~send2~0=v_~send2~0_8, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_10, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_21, ~nodes~0.base=v_~nodes~0.base_5, ~id2~0=v_~id2~0_15, ~nodes~0.offset=v_~nodes~0.offset_5, ~p1_old~0=v_~p1_old~0_6, ~nomsg~0=v_~nomsg~0_22, ULTIMATE.start_main_#t~post18=|v_ULTIMATE.start_main_#t~post18_4|, ~p3_old~0=v_~p3_old~0_6, ~p3~0=v_~p3~0_2, ~p2_old~0=v_~p2_old~0_6, ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_4|, ~mode1~0=v_~mode1~0_9, ULTIMATE.start_main_#t~ret17=|v_ULTIMATE.start_main_#t~ret17_4|, ~mode3~0=v_~mode3~0_9, ULTIMATE.start_main_#t~ret14=|v_ULTIMATE.start_main_#t~ret14_5|, ~p3_new~0=v_~p3_new~0_8, ~p2_new~0=v_~p2_new~0_8, ~p1_new~0=v_~p1_new~0_8, ~st2~0=v_~st2~0_12, ~p1~0=v_~p1~0_2, ULTIMATE.start_main_#t~ret10=|v_ULTIMATE.start_main_#t~ret10_5|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet15=|v_ULTIMATE.start_main_#t~nondet15_6|, ~send3~0=v_~send3~0_8, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_5|, ~send1~0=v_~send1~0_9} AuxVars[] AssignedVars[~id1~0, ULTIMATE.start_main_#t~nondet11, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet12, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet13, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_init_#res, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_#t~nondet9, ULTIMATE.start_main_~c1~0, ~p2~0, ULTIMATE.start_main_#t~nondet7, ~id3~0, ~mode2~0, ~st3~0, ~r1~0, ~st1~0, ~send2~0, ULTIMATE.start_main_~i2~0, ULTIMATE.start_init_~tmp~0, ~nodes~0.base, ~id2~0, ~nodes~0.offset, ~p1_old~0, ~nomsg~0, ULTIMATE.start_main_#t~post18, ~p3_old~0, ~p3~0, ~p2_old~0, ULTIMATE.start_main_#t~ret16, ~mode1~0, ULTIMATE.start_main_#t~ret17, ~mode3~0, ULTIMATE.start_main_#t~ret14, ~p3_new~0, ~p2_new~0, ~p1_new~0, ~st2~0, ~p1~0, ULTIMATE.start_main_#t~ret10, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet15, ~send3~0, ULTIMATE.start_main_#t~ret6, ~send1~0] 30#L177true [417] L177-->L177-1: Formula: (and (< 0 v_~r1~0_4) (= v_ULTIMATE.start_init_~tmp~0_19 0)) InVars {~r1~0=v_~r1~0_4} OutVars{ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_19, ~r1~0=v_~r1~0_4} AuxVars[] AssignedVars[ULTIMATE.start_init_~tmp~0] 28#L177-1true [314] L177-1-->L242: Formula: (= |v_ULTIMATE.start_init_#res_2| v_ULTIMATE.start_init_~tmp~0_20) InVars {ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} OutVars{ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_2|, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} AuxVars[] AssignedVars[ULTIMATE.start_init_#res] 18#L242true [422] L242-->L325-2: Formula: (and (= 0 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|) (= |v_ULTIMATE.start_init_#res_3| v_ULTIMATE.start_main_~i2~0_6) (= v_ULTIMATE.start___VERIFIER_assume_~arg_1 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|) (= 0 v_ULTIMATE.start_main_~i2~0_6)) InVars {ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|} OutVars{ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_2|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|, ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_1, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_6, ULTIMATE.start___VERIFIER_assume_#in~arg=|v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret16, ULTIMATE.start___VERIFIER_assume_~arg, ULTIMATE.start_main_~i2~0, ULTIMATE.start___VERIFIER_assume_#in~arg] 4#L325-2true [2020-07-01 10:50:24,431 INFO L796 eck$LassoCheckResult]: Loop: 4#L325-2true [273] L325-2-->L325-2: Formula: (= 0 v_ULTIMATE.start___VERIFIER_assume_~arg_4) InVars {ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} OutVars{ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} AuxVars[] AssignedVars[] 4#L325-2true [2020-07-01 10:50:24,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:24,437 INFO L82 PathProgramCache]: Analyzing trace with hash 16140541, now seen corresponding path program 1 times [2020-07-01 10:50:24,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:24,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155229864] [2020-07-01 10:50:24,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:24,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:24,560 INFO L82 PathProgramCache]: Analyzing trace with hash 304, now seen corresponding path program 1 times [2020-07-01 10:50:24,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:24,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938705160] [2020-07-01 10:50:24,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,572 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:24,574 INFO L82 PathProgramCache]: Analyzing trace with hash 500357044, now seen corresponding path program 1 times [2020-07-01 10:50:24,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:24,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004827314] [2020-07-01 10:50:24,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:24,604 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:24,766 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-07-01 10:50:24,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:24 BasicIcfg [2020-07-01 10:50:24,859 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:50:24,861 INFO L168 Benchmark]: Toolchain (without parser) took 1763.36 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 561.4 MB in the beginning and 518.9 MB in the end (delta: 42.4 MB). Peak memory consumption was 80.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,861 INFO L168 Benchmark]: CDTParser took 0.17 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 10:50:24,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.98 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 560.3 MB in the beginning and 644.6 MB in the end (delta: -84.3 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 687.3 MB. Free memory was 644.6 MB in the beginning and 642.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,863 INFO L168 Benchmark]: Boogie Preprocessor took 32.42 ms. Allocated memory is still 687.3 MB. Free memory was 642.5 MB in the beginning and 640.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,864 INFO L168 Benchmark]: RCFGBuilder took 472.84 ms. Allocated memory is still 687.3 MB. Free memory was 640.3 MB in the beginning and 605.2 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,864 INFO L168 Benchmark]: BlockEncodingV2 took 133.34 ms. Allocated memory is still 687.3 MB. Free memory was 605.2 MB in the beginning and 590.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,865 INFO L168 Benchmark]: TraceAbstraction took 171.76 ms. Allocated memory is still 687.3 MB. Free memory was 589.0 MB in the beginning and 575.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,866 INFO L168 Benchmark]: BuchiAutomizer took 508.33 ms. Allocated memory is still 687.3 MB. Free memory was 574.8 MB in the beginning and 518.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:24,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 60 locations, 100 edges - StatisticsResult: Encoded RCFG 55 locations, 136 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 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 389.98 ms. Allocated memory was 649.6 MB in the beginning and 687.3 MB in the end (delta: 37.7 MB). Free memory was 560.3 MB in the beginning and 644.6 MB in the end (delta: -84.3 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 687.3 MB. Free memory was 644.6 MB in the beginning and 642.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 32.42 ms. Allocated memory is still 687.3 MB. Free memory was 642.5 MB in the beginning and 640.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 472.84 ms. Allocated memory is still 687.3 MB. Free memory was 640.3 MB in the beginning and 605.2 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 133.34 ms. Allocated memory is still 687.3 MB. Free memory was 605.2 MB in the beginning and 590.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 171.76 ms. Allocated memory is still 687.3 MB. Free memory was 589.0 MB in the beginning and 575.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 508.33 ms. Allocated memory is still 687.3 MB. Free memory was 574.8 MB in the beginning and 518.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 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: 251]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 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=55occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, p2_old=0, p1_new=0, r1=1, \result=0, send1=0, send2=0, send3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21181462=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@515534b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e1c5288=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@404f1f15=0, \old(arg)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c7669a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5351bb8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44425619=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@166b7b9b=0, mode2=0, mode1=0, p2_new=0, id3=0, id1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77b1d630=0, p1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b45525c=0, id2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b88513=0, p3=0, p2=0, mode3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33ca4396=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37acbdee=0, st3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0980b1=0, tmp=0, st1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11d485a6=0, st2=0, p3_old=0, i2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@1cf3179=0, p3_new=0, c1=0, p1_old=0, arg=0, nomsg=-1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 325]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] msg_t nomsg = (msg_t )-1; [L71] char r1 ; [L72] port_t p1 ; [L73] char p1_old ; [L74] char p1_new ; [L75] char id1 ; [L76] char st1 ; [L77] msg_t send1 ; [L78] _Bool mode1 ; [L79] port_t p2 ; [L80] char p2_old ; [L81] char p2_new ; [L82] char id2 ; [L83] char st2 ; [L84] msg_t send2 ; [L85] _Bool mode2 ; [L86] port_t p3 ; [L87] char p3_old ; [L88] char p3_new ; [L89] char id3 ; [L90] char st3 ; [L91] msg_t send3 ; [L92] _Bool mode3 ; [L171] void (*nodes[3])(void) = { & node1, & node2, & node3}; [L275] int c1 ; [L276] int i2 ; [L279] c1 = 0 [L280] r1 = __VERIFIER_nondet_char() [L281] id1 = __VERIFIER_nondet_char() [L282] st1 = __VERIFIER_nondet_char() [L283] send1 = __VERIFIER_nondet_msg_t() [L284] mode1 = __VERIFIER_nondet__Bool() [L285] id2 = __VERIFIER_nondet_char() [L286] st2 = __VERIFIER_nondet_char() [L287] send2 = __VERIFIER_nondet_msg_t() [L288] mode2 = __VERIFIER_nondet__Bool() [L289] id3 = __VERIFIER_nondet_char() [L290] st3 = __VERIFIER_nondet_char() [L291] send3 = __VERIFIER_nondet_msg_t() [L292] mode3 = __VERIFIER_nondet__Bool() [L174] int tmp ; [L177] COND FALSE !((int )r1 == 0) [L240] tmp = 0 [L242] return (tmp); [L293] i2 = init() Loop: [L325] COND TRUE ! arg End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:50:19.857 ----------------------------------------------- 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_dE53dG/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:50:25.115 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check