/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 12:24:37,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:24:37,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:24:37,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:24:37,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:24:37,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:24:37,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:24:37,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:24:37,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:24:37,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:24:37,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:24:37,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:24:37,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:24:37,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:24:37,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:24:37,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:24:37,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:24:37,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:24:37,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:24:37,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:24:37,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:24:37,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:24:37,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:24:37,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:24:37,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:24:37,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:24:37,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:24:37,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:24:37,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:24:37,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:24:37,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:24:37,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:24:37,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:24:37,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:24:37,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:24:37,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:24:37,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:24:37,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:24:37,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:24:37,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:24:37,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:24:37,397 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:24:37,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:24:37,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:24:37,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:24:37,412 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:24:37,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:24:37,413 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:24:37,413 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:24:37,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:24:37,413 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:24:37,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:24:37,414 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:24:37,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:24:37,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:24:37,414 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:24:37,414 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:24:37,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:24:37,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:24:37,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:24:37,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:24:37,415 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:24:37,415 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:24:37,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:24:37,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:24:37,416 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:24:37,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:24:37,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:24:37,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:24:37,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:24:37,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:24:37,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:24:37,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:24:37,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:24:37,600 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:24:37,601 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:24:37,601 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:24:37,665 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_MYDKdV/tmp/c52c116c92c44996bf2787b135e95b60/FLAG9fd3be6bc [2020-07-01 12:24:38,006 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:24:38,007 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:24:38,014 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_MYDKdV/tmp/c52c116c92c44996bf2787b135e95b60/FLAG9fd3be6bc [2020-07-01 12:24:38,426 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_MYDKdV/tmp/c52c116c92c44996bf2787b135e95b60 [2020-07-01 12:24:38,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:24:38,439 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:24:38,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:24:38,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:24:38,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:24:38,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a165e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38, skipping insertion in model container [2020-07-01 12:24:38,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:24:38,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:24:38,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:24:38,692 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:24:38,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:24:38,723 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:24:38,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38 WrapperNode [2020-07-01 12:24:38,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:24:38,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:24:38,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:24:38,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:24:38,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:24:38,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:24:38,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:24:38,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:24:38,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (1/1) ... [2020-07-01 12:24:38,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:24:38,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:24:38,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:24:38,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:24:38,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (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 12:24:38,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:24:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:24:38,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:24:38,999 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:24:39,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:24:39 BoogieIcfgContainer [2020-07-01 12:24:39,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:24:39,003 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:24:39,003 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:24:39,005 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:24:39,006 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:24:39" (1/1) ... [2020-07-01 12:24:39,018 INFO L313 BlockEncoder]: Initial Icfg 12 locations, 22 edges [2020-07-01 12:24:39,019 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:24:39,020 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:24:39,021 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:24:39,021 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:24:39,025 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:24:39,026 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:24:39,026 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:24:39,043 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:24:39,051 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:24:39,056 INFO L70 emoveInfeasibleEdges]: Removed 4 edges and 0 locations because of local infeasibility [2020-07-01 12:24:39,058 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:24:39,068 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:24:39,070 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 12:24:39,071 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:24:39,071 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:24:39,071 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:24:39,072 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:24:39,072 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 12 edges [2020-07-01 12:24:39,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:24:39 BasicIcfg [2020-07-01 12:24:39,073 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:24:39,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:24:39,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:24:39,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:24:39,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:24:38" (1/4) ... [2020-07-01 12:24:39,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (2/4) ... [2020-07-01 12:24:39,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:24:39" (3/4) ... [2020-07-01 12:24:39,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:24:39" (4/4) ... [2020-07-01 12:24:39,083 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:24:39,093 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:24:39,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:24:39,113 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:24:39,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:24:39,136 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:24:39,136 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:24:39,136 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:24:39,136 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:24:39,136 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:24:39,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:24:39,137 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:24:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 12:24:39,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:24:39,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 12:24:39,215 INFO L268 CegarLoopResult]: For program point L17(lines 17 22) no Hoare annotation was computed. [2020-07-01 12:24:39,216 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: true [2020-07-01 12:24:39,216 INFO L268 CegarLoopResult]: For program point L17-1(lines 16 35) no Hoare annotation was computed. [2020-07-01 12:24:39,216 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:24:39,217 INFO L271 CegarLoopResult]: At program point L31-2(lines 31 33) the Hoare annotation is: true [2020-07-01 12:24:39,217 INFO L268 CegarLoopResult]: For program point L10(lines 10 35) no Hoare annotation was computed. [2020-07-01 12:24:39,217 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 14) the Hoare annotation is: true [2020-07-01 12:24:39,217 INFO L271 CegarLoopResult]: At program point L25-2(lines 25 27) the Hoare annotation is: true [2020-07-01 12:24:39,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:24:39 BasicIcfg [2020-07-01 12:24:39,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:24:39,227 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:24:39,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:24:39,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:24:39,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:24:39,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:24:38" (1/5) ... [2020-07-01 12:24:39,232 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28bbfd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:24:39,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:24:38" (2/5) ... [2020-07-01 12:24:39,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28bbfd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:24:39,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:24:39" (3/5) ... [2020-07-01 12:24:39,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28bbfd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:24:39,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:24:39" (4/5) ... [2020-07-01 12:24:39,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28bbfd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:24:39, skipping insertion in model container [2020-07-01 12:24:39,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:24:39,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:24:39" (5/5) ... [2020-07-01 12:24:39,236 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:24:39,265 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:24:39,266 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:24:39,266 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:24:39,266 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:24:39,266 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:24:39,266 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:24:39,266 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:24:39,266 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:24:39,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 12:24:39,287 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-01 12:24:39,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:24:39,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:24:39,293 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:24:39,293 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:24:39,293 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:24:39,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 12:24:39,294 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-01 12:24:39,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:24:39,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:24:39,295 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:24:39,295 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:24:39,300 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [76] ULTIMATE.startENTRY-->L10: Formula: (= v_ULTIMATE.start_main_~c~0_1 864) InVars {} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0] 3#L10true [70] L10-->L12-2: Formula: (and (<= v_ULTIMATE.start_main_~c~0_7 10) (= v_ULTIMATE.start_main_~i~0_4 0)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L12-2true [2020-07-01 12:24:39,300 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true [74] L12-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 100)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L12-2true [2020-07-01 12:24:39,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:39,307 INFO L82 PathProgramCache]: Analyzing trace with hash 3387, now seen corresponding path program 1 times [2020-07-01 12:24:39,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:24:39,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090725197] [2020-07-01 12:24:39,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:24:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:24:39,409 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 12:24:39,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090725197] [2020-07-01 12:24:39,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:24:39,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 12:24:39,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393908485] [2020-07-01 12:24:39,417 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:24:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:39,418 INFO L82 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2020-07-01 12:24:39,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:24:39,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104192245] [2020-07-01 12:24:39,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:24:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:39,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:24:39,475 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:24:39,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:24:39,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:24:39,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:24:39,477 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:24:39,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:24:39,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:24:39,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:24:39,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:24:39,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:24:39,478 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:24:39,496 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 12:24:39,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:24:39,514 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 12:24:39,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:24:39,588 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 12:24:39,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:24:39,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:24:39,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:24:39,607 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 12:24:39,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:24:39,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:24:39,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:24:39,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 12:24:39,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:24:39,684 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:24:39,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:24:39,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:24:39,760 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:24:39,762 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:24:39,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:24:39,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:24:39,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:24:39,763 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:24:39,763 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:24:39,763 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:24:39,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:24:39,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:24:39,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:24:39,764 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:24:39,765 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 12:24:39,773 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 12:24:39,777 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 12:24:39,849 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:24:39,855 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:24:39,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:24:39,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:24:39,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:24:39,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:24:39,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:24:39,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:24:39,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:24:39,895 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:24:39,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:24:39,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:24:39,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:24:39,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:24:39,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:24:39,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:24:39,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:24:39,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:24:39,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:24:39,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:24:39,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:24:39,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:24:39,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:24:39,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:24:39,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:24:39,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:24:39,985 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:24:39,990 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:24:39,990 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:24:39,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:24:39,996 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:24:39,996 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:24:39,997 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2020-07-01 12:24:40,031 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:24:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:24:40,077 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:24:40,079 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:24:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:24:40,090 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:24:40,091 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:24:40,091 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 12:24:40,104 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:24:40,109 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:24:40,110 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 2 states. [2020-07-01 12:24:40,137 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 2 states. Result 9 states and 13 transitions. Complement of second has 2 states. [2020-07-01 12:24:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:24:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:24:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 14 transitions. [2020-07-01 12:24:40,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:24:40,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:24:40,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:24:40,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:24:40,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:24:40,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:24:40,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 12:24:40,152 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2020-07-01 12:24:40,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 7 states and 10 transitions. [2020-07-01 12:24:40,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-01 12:24:40,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 12:24:40,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 12:24:40,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:24:40,159 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:24:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 12:24:40,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 12:24:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:24:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 12:24:40,188 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 12:24:40,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:24:40,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:24:40,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:24:40,192 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-07-01 12:24:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:24:40,206 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-07-01 12:24:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:24:40,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2020-07-01 12:24:40,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:24:40,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2020-07-01 12:24:40,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 12:24:40,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:24:40,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-07-01 12:24:40,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:24:40,211 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-01 12:24:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-07-01 12:24:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-01 12:24:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:24:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-07-01 12:24:40,212 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-01 12:24:40,212 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-01 12:24:40,212 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:24:40,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2020-07-01 12:24:40,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:24:40,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:24:40,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:24:40,213 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-01 12:24:40,214 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:24:40,214 INFO L794 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY [76] ULTIMATE.startENTRY-->L10: Formula: (= v_ULTIMATE.start_main_~c~0_1 864) InVars {} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0] 56#L10 [92] L10-->L17: Formula: (> v_ULTIMATE.start_main_~c~0_9 10) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_9} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_9} AuxVars[] AssignedVars[] 57#L17 [94] L17-->L17-1: Formula: (> v_ULTIMATE.start_main_~c~0_6 50) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6} AuxVars[] AssignedVars[] 59#L17-1 [96] L17-1-->L31-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_13 0) (> v_ULTIMATE.start_main_~c~0_11 100)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_11} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_11, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 60#L31-2 [2020-07-01 12:24:40,214 INFO L796 eck$LassoCheckResult]: Loop: 60#L31-2 [90] L31-2-->L31-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_18 v_ULTIMATE.start_main_~i~0_19) (< v_ULTIMATE.start_main_~i~0_19 103)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_19} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_18} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 60#L31-2 [2020-07-01 12:24:40,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:40,215 INFO L82 PathProgramCache]: Analyzing trace with hash 3279059, now seen corresponding path program 1 times [2020-07-01 12:24:40,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:24:40,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974553554] [2020-07-01 12:24:40,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:24:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,224 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:24:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:40,225 INFO L82 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2020-07-01 12:24:40,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:24:40,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123549458] [2020-07-01 12:24:40,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:24:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:24:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:24:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash 101650919, now seen corresponding path program 1 times [2020-07-01 12:24:40,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:24:40,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061088933] [2020-07-01 12:24:40,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:24:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:24:40,243 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:24:40,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:24:40 BasicIcfg [2020-07-01 12:24:40,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:24:40,298 INFO L168 Benchmark]: Toolchain (without parser) took 1858.90 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.5 MB in the beginning and 514.3 MB in the end (delta: 47.2 MB). Peak memory consumption was 83.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,299 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 12:24:40,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.21 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.5 MB in the beginning and 649.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 686.3 MB. Free memory was 649.7 MB in the beginning and 647.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,301 INFO L168 Benchmark]: Boogie Preprocessor took 19.94 ms. Allocated memory is still 686.3 MB. Free memory was 647.0 MB in the beginning and 645.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,301 INFO L168 Benchmark]: RCFGBuilder took 225.40 ms. Allocated memory is still 686.3 MB. Free memory was 645.7 MB in the beginning and 631.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,302 INFO L168 Benchmark]: BlockEncodingV2 took 69.81 ms. Allocated memory is still 686.3 MB. Free memory was 630.0 MB in the beginning and 625.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,302 INFO L168 Benchmark]: TraceAbstraction took 152.41 ms. Allocated memory is still 686.3 MB. Free memory was 624.6 MB in the beginning and 615.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,303 INFO L168 Benchmark]: BuchiAutomizer took 1068.82 ms. Allocated memory is still 686.3 MB. Free memory was 615.1 MB in the beginning and 514.3 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:24:40,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 22 edges - StatisticsResult: Encoded RCFG 8 locations, 12 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 284.21 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.5 MB in the beginning and 649.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 686.3 MB. Free memory was 649.7 MB in the beginning and 647.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.94 ms. Allocated memory is still 686.3 MB. Free memory was 647.0 MB in the beginning and 645.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 225.40 ms. Allocated memory is still 686.3 MB. Free memory was 645.7 MB in the beginning and 631.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.81 ms. Allocated memory is still 686.3 MB. Free memory was 630.0 MB in the beginning and 625.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.41 ms. Allocated memory is still 686.3 MB. Free memory was 624.6 MB in the beginning and 615.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1068.82 ms. Allocated memory is still 686.3 MB. Free memory was 615.1 MB in the beginning and 514.3 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -2 * i + 199 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 16 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: 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, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 12:24:35.140 ----------------------------------------------- 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_MYDKdV/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:24:40.744 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check