/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:56:52,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:56:52,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:56:52,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:56:52,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:56:52,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:56:52,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:56:52,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:56:52,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:56:52,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:56:52,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:56:52,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:56:52,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:56:52,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:56:52,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:56:52,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:56:52,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:56:52,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:56:52,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:56:52,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:56:52,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:56:52,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:56:52,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:56:52,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:56:52,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:56:52,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:56:52,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:56:52,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:56:52,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:56:52,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:56:52,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:56:52,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:56:52,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:56:52,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:56:52,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:56:52,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:56:52,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:56:52,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:56:52,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:56:52,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:56:52,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:56:52,356 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:56:52,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:56:52,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:56:52,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:56:52,371 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:56:52,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:56:52,372 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:56:52,372 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:56:52,372 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:56:52,372 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:56:52,373 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:56:52,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:56:52,374 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:56:52,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:56:52,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:56:52,374 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:56:52,374 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:56:52,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:56:52,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:56:52,375 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:56:52,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:56:52,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:56:52,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:56:52,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:56:52,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:56:52,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:56:52,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:56:52,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:56:52,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:56:52,563 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:56:52,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:56:52,634 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_A88Ehi/tmp/965f36a0fa0d42c3bbaf1e3e7779f906/FLAGb4da7fb33 [2020-07-01 12:56:52,964 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:56:52,965 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:56:52,965 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-07-01 12:56:52,971 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_A88Ehi/tmp/965f36a0fa0d42c3bbaf1e3e7779f906/FLAGb4da7fb33 [2020-07-01 12:56:53,371 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_A88Ehi/tmp/965f36a0fa0d42c3bbaf1e3e7779f906 [2020-07-01 12:56:53,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:56:53,383 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:56:53,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:56:53,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:56:53,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:56:53,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e04bc2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53, skipping insertion in model container [2020-07-01 12:56:53,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:56:53,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:56:53,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:56:53,656 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:56:53,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:56:53,688 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:56:53,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53 WrapperNode [2020-07-01 12:56:53,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:56:53,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:56:53,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:56:53,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:56:53,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:56:53,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:56:53,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:56:53,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:56:53,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... [2020-07-01 12:56:53,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:56:53,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:56:53,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:56:53,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:56:53,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:56:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:56:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:56:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:56:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:56:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-01 12:56:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-01 12:56:54,063 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:56:54,064 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:56:54,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:54 BoogieIcfgContainer [2020-07-01 12:56:54,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:56:54,068 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:56:54,068 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:56:54,070 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:56:54,071 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:54" (1/1) ... [2020-07-01 12:56:54,084 INFO L313 BlockEncoder]: Initial Icfg 35 locations, 38 edges [2020-07-01 12:56:54,086 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:56:54,086 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:56:54,087 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:56:54,087 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:56:54,089 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:56:54,090 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:56:54,090 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:56:54,112 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:56:54,141 INFO L200 BlockEncoder]: SBE split 18 edges [2020-07-01 12:56:54,146 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:56:54,150 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:56:54,172 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-07-01 12:56:54,175 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:56:54,176 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:56:54,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:56:54,177 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:56:54,178 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:56:54,178 INFO L313 BlockEncoder]: Encoded RCFG 28 locations, 50 edges [2020-07-01 12:56:54,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:54 BasicIcfg [2020-07-01 12:56:54,179 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:56:54,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:56:54,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:56:54,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:56:54,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:56:53" (1/4) ... [2020-07-01 12:56:54,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398ef492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:56:54, skipping insertion in model container [2020-07-01 12:56:54,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (2/4) ... [2020-07-01 12:56:54,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398ef492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:56:54, skipping insertion in model container [2020-07-01 12:56:54,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:54" (3/4) ... [2020-07-01 12:56:54,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398ef492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:54, skipping insertion in model container [2020-07-01 12:56:54,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:54" (4/4) ... [2020-07-01 12:56:54,188 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:56:54,199 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:56:54,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-07-01 12:56:54,221 INFO L251 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-07-01 12:56:54,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:56:54,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:56:54,245 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:56:54,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:56:54,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:56:54,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:56:54,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:56:54,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:56:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-01 12:56:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:56:54,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:54,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:56:54,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash 113174, now seen corresponding path program 1 times [2020-07-01 12:56:54,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:54,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163080916] [2020-07-01 12:56:54,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:54,438 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 12:56:54,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163080916] [2020-07-01 12:56:54,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:54,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:54,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848900198] [2020-07-01 12:56:54,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:54,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:54,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:54,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,464 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-07-01 12:56:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:54,562 INFO L93 Difference]: Finished difference Result 54 states and 95 transitions. [2020-07-01 12:56:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:54,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-01 12:56:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:54,576 INFO L225 Difference]: With dead ends: 54 [2020-07-01 12:56:54,576 INFO L226 Difference]: Without dead ends: 28 [2020-07-01 12:56:54,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-01 12:56:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-01 12:56:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-01 12:56:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2020-07-01 12:56:54,616 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 3 [2020-07-01 12:56:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:54,617 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2020-07-01 12:56:54,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2020-07-01 12:56:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:56:54,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:54,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:56:54,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:56:54,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:54,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:54,620 INFO L82 PathProgramCache]: Analyzing trace with hash 113236, now seen corresponding path program 1 times [2020-07-01 12:56:54,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:54,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709093031] [2020-07-01 12:56:54,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:54,674 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 12:56:54,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709093031] [2020-07-01 12:56:54,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:54,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:54,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930375722] [2020-07-01 12:56:54,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:54,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:54,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:54,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,678 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2020-07-01 12:56:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:54,775 INFO L93 Difference]: Finished difference Result 28 states and 47 transitions. [2020-07-01 12:56:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:54,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-01 12:56:54,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:54,776 INFO L225 Difference]: With dead ends: 28 [2020-07-01 12:56:54,776 INFO L226 Difference]: Without dead ends: 24 [2020-07-01 12:56:54,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-01 12:56:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-01 12:56:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-01 12:56:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-07-01 12:56:54,782 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 3 [2020-07-01 12:56:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:54,782 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-07-01 12:56:54,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-07-01 12:56:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:56:54,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:54,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:56:54,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-01 12:56:54,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:54,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:54,784 INFO L82 PathProgramCache]: Analyzing trace with hash 113238, now seen corresponding path program 1 times [2020-07-01 12:56:54,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:54,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438727790] [2020-07-01 12:56:54,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:54,806 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 12:56:54,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438727790] [2020-07-01 12:56:54,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:54,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:54,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158615251] [2020-07-01 12:56:54,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:54,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:54,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:54,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,809 INFO L87 Difference]: Start difference. First operand 24 states and 39 transitions. Second operand 3 states. [2020-07-01 12:56:54,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:54,873 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2020-07-01 12:56:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:54,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-01 12:56:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:54,875 INFO L225 Difference]: With dead ends: 28 [2020-07-01 12:56:54,875 INFO L226 Difference]: Without dead ends: 24 [2020-07-01 12:56:54,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-01 12:56:54,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-01 12:56:54,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-01 12:56:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2020-07-01 12:56:54,879 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 3 [2020-07-01 12:56:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:54,879 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2020-07-01 12:56:54,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:54,880 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-07-01 12:56:54,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:56:54,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:54,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:56:54,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-01 12:56:54,880 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:54,881 INFO L82 PathProgramCache]: Analyzing trace with hash 113239, now seen corresponding path program 1 times [2020-07-01 12:56:54,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:54,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624750827] [2020-07-01 12:56:54,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:54,917 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 12:56:54,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624750827] [2020-07-01 12:56:54,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:54,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:54,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255240264] [2020-07-01 12:56:54,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:54,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:54,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:54,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,919 INFO L87 Difference]: Start difference. First operand 24 states and 35 transitions. Second operand 3 states. [2020-07-01 12:56:54,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:54,968 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2020-07-01 12:56:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:54,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-01 12:56:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:54,969 INFO L225 Difference]: With dead ends: 24 [2020-07-01 12:56:54,969 INFO L226 Difference]: Without dead ends: 20 [2020-07-01 12:56:54,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-01 12:56:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-01 12:56:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 12:56:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2020-07-01 12:56:54,973 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 31 transitions. Word has length 3 [2020-07-01 12:56:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:54,974 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 31 transitions. [2020-07-01 12:56:54,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:54,974 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2020-07-01 12:56:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-01 12:56:54,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:54,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-01 12:56:54,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-01 12:56:54,975 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash -923162738, now seen corresponding path program 1 times [2020-07-01 12:56:54,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:54,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429391012] [2020-07-01 12:56:54,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:55,012 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 12:56:55,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429391012] [2020-07-01 12:56:55,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:55,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:55,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203883382] [2020-07-01 12:56:55,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:55,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:55,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:55,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:55,014 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. Second operand 3 states. [2020-07-01 12:56:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:55,057 INFO L93 Difference]: Finished difference Result 20 states and 31 transitions. [2020-07-01 12:56:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:55,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-01 12:56:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:55,058 INFO L225 Difference]: With dead ends: 20 [2020-07-01 12:56:55,059 INFO L226 Difference]: Without dead ends: 17 [2020-07-01 12:56:55,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-01 12:56:55,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 12:56:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 12:56:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2020-07-01 12:56:55,062 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 6 [2020-07-01 12:56:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:55,062 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 25 transitions. [2020-07-01 12:56:55,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2020-07-01 12:56:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-01 12:56:55,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:55,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-01 12:56:55,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-01 12:56:55,063 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-07-01 12:56:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:55,064 INFO L82 PathProgramCache]: Analyzing trace with hash -923162736, now seen corresponding path program 1 times [2020-07-01 12:56:55,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:55,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860116832] [2020-07-01 12:56:55,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:55,098 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 12:56:55,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860116832] [2020-07-01 12:56:55,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:55,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:56:55,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002205905] [2020-07-01 12:56:55,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:56:55,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:55,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:55,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:55,100 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. Second operand 3 states. [2020-07-01 12:56:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:55,150 INFO L93 Difference]: Finished difference Result 17 states and 25 transitions. [2020-07-01 12:56:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:55,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-01 12:56:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:55,151 INFO L225 Difference]: With dead ends: 17 [2020-07-01 12:56:55,151 INFO L226 Difference]: Without dead ends: 0 [2020-07-01 12:56:55,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-01 12:56:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-01 12:56:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-01 12:56:55,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 12:56:55,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-07-01 12:56:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:55,152 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:56:55,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:56:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:56:55,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:56:55,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-01 12:56:55,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-01 12:56:55,195 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,195 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,195 INFO L268 CegarLoopResult]: For program point L9(lines 9 14) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L264 CegarLoopResult]: At program point L9-2(lines 8 15) the Hoare annotation is: (and (= 4 (select |#length| ULTIMATE.start_main_~y~0.base)) (= (select |#valid| ULTIMATE.start_main_~x~0.base) 1) (= 0 ULTIMATE.start_main_~y~0.offset) (= (select |#length| ULTIMATE.start_main_~x~0.base) 4) (<= 1 |#StackHeapBarrier|) (= 1 (select |#valid| ULTIMATE.start_main_~y~0.base)) (= 0 ULTIMATE.start_main_~x~0.offset)) [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr13REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr10REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr9REQUIRES_VIOLATION(line 12) no Hoare annotation was computed. [2020-07-01 12:56:55,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr12REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr11REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr6REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr5REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr8REQUIRES_VIOLATION(line 12) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr7REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr2REQUIRES_VIOLATION(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1REQUIRES_VIOLATION(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr4REQUIRES_VIOLATION(line 10) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr3REQUIRES_VIOLATION(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,198 INFO L268 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,199 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0REQUIRES_VIOLATION(line 8) no Hoare annotation was computed. [2020-07-01 12:56:55,199 INFO L268 CegarLoopResult]: For program point L8-6(lines 8 15) no Hoare annotation was computed. [2020-07-01 12:56:55,201 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:56:55,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-01 12:56:55,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-01 12:56:55,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:55 BasicIcfg [2020-07-01 12:56:55,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:56:55,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:56:55,221 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:56:55,225 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:56:55,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:55,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:56:53" (1/5) ... [2020-07-01 12:56:55,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e13ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:56:55, skipping insertion in model container [2020-07-01 12:56:55,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:55,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:53" (2/5) ... [2020-07-01 12:56:55,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e13ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:56:55, skipping insertion in model container [2020-07-01 12:56:55,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:55,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:54" (3/5) ... [2020-07-01 12:56:55,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e13ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:56:55, skipping insertion in model container [2020-07-01 12:56:55,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:55,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:54" (4/5) ... [2020-07-01 12:56:55,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e13ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:56:55, skipping insertion in model container [2020-07-01 12:56:55,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:55,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:55" (5/5) ... [2020-07-01 12:56:55,230 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:56:55,252 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:56:55,252 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:56:55,252 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:56:55,252 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:56:55,252 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:56:55,252 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:56:55,253 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:56:55,253 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:56:55,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-07-01 12:56:55,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-07-01 12:56:55,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:56:55,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:56:55,269 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:56:55,269 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:56:55,269 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:56:55,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-07-01 12:56:55,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-07-01 12:56:55,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:56:55,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:56:55,272 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:56:55,272 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:56:55,277 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue [83] ULTIMATE.startENTRY-->L-1: Formula: (and (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= |v_#valid_1| (store |v_#valid_2| 0 0)) (= |v_#NULL.offset_1| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_2|} OutVars{#NULL.offset=|v_#NULL.offset_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #NULL.base=|v_#NULL.base_1|, #valid=|v_#valid_1|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] 10#L-1true [116] L-1-->L9-2: Formula: (let ((.cse0 (store |v_#valid_5| |v_ULTIMATE.start_main_#t~malloc0.base_1| 1))) (and (= 0 (select |v_#valid_5| |v_ULTIMATE.start_main_#t~malloc0.base_1|)) (= v_ULTIMATE.start_main_~y~0.offset_1 |v_ULTIMATE.start_main_#t~malloc1.offset_1|) (= 0 (select .cse0 |v_ULTIMATE.start_main_#t~malloc1.base_1|)) (> 0 |v_ULTIMATE.start_main_#t~malloc1.base_1|) (= 0 |v_ULTIMATE.start_main_#t~malloc0.offset_1|) (= v_ULTIMATE.start_main_~x~0.offset_1 |v_ULTIMATE.start_main_#t~malloc0.offset_1|) (= 0 |v_ULTIMATE.start_main_#t~malloc1.offset_1|) (= |v_#valid_3| (store .cse0 |v_ULTIMATE.start_main_#t~malloc1.base_1| 1)) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_#t~malloc1.base_1|) (= v_ULTIMATE.start_main_~x~0.base_1 |v_ULTIMATE.start_main_#t~malloc0.base_1|) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_#t~malloc0.base_1|) (= (store (store |v_#length_3| |v_ULTIMATE.start_main_#t~malloc0.base_1| 4) |v_ULTIMATE.start_main_#t~malloc1.base_1| 4) |v_#length_1|) (= v_ULTIMATE.start_main_~y~0.base_1 |v_ULTIMATE.start_main_#t~malloc1.base_1|) (> 0 |v_ULTIMATE.start_main_#t~malloc0.base_1|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, #valid=|v_#valid_5|} OutVars{ULTIMATE.start_main_#t~malloc1.offset=|v_ULTIMATE.start_main_#t~malloc1.offset_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_1, ULTIMATE.start_main_#t~malloc0.offset=|v_ULTIMATE.start_main_#t~malloc0.offset_1|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_1, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_1|, ULTIMATE.start_main_#t~malloc0.base=|v_ULTIMATE.start_main_#t~malloc0.base_1|, ULTIMATE.start_main_#t~malloc1.base=|v_ULTIMATE.start_main_#t~malloc1.base_1|, #StackHeapBarrier=|v_#StackHeapBarrier_2|, ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_1|, ULTIMATE.start_main_#t~mem8=|v_ULTIMATE.start_main_#t~mem8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, #valid=|v_#valid_3|, ULTIMATE.start_main_#t~mem2=|v_ULTIMATE.start_main_#t~mem2_1|, #length=|v_#length_1|, ULTIMATE.start_main_~y~0.offset=v_ULTIMATE.start_main_~y~0.offset_1, ULTIMATE.start_main_~y~0.base=v_ULTIMATE.start_main_~y~0.base_1, ULTIMATE.start_main_#t~mem6=|v_ULTIMATE.start_main_#t~mem6_1|, ULTIMATE.start_main_#t~mem3=|v_ULTIMATE.start_main_#t~mem3_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~malloc1.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~x~0.offset, ULTIMATE.start_main_#t~malloc0.offset, ULTIMATE.start_main_~x~0.base, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_#t~malloc0.base, ULTIMATE.start_main_#t~malloc1.base, ULTIMATE.start_main_#t~short4, ULTIMATE.start_main_#t~mem8, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#t~mem2, #length, ULTIMATE.start_main_~y~0.offset, ULTIMATE.start_main_~y~0.base, ULTIMATE.start_main_#t~mem6, ULTIMATE.start_main_#t~mem3] 5#L9-2true [2020-07-01 12:56:55,278 INFO L796 eck$LassoCheckResult]: Loop: 5#L9-2true [59] L9-2-->L8-1: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0.offset_4 4) (select |v_#length_4| v_ULTIMATE.start_main_~x~0.base_4)) (<= 0 v_ULTIMATE.start_main_~x~0.offset_4) (= (select |v_#valid_6| v_ULTIMATE.start_main_~x~0.base_4) 1) (= |v_ULTIMATE.start_main_#t~mem2_2| (select (select |v_#memory_int_1| v_ULTIMATE.start_main_~x~0.base_4) v_ULTIMATE.start_main_~x~0.offset_4))) InVars {ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_4, #memory_int=|v_#memory_int_1|, #length=|v_#length_4|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_4, #valid=|v_#valid_6|} OutVars{#valid=|v_#valid_6|, ULTIMATE.start_main_#t~mem2=|v_ULTIMATE.start_main_#t~mem2_2|, ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_4, #memory_int=|v_#memory_int_1|, #length=|v_#length_4|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem2] 23#L8-1true [121] L8-1-->L8-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~mem2_3|) |v_ULTIMATE.start_main_#t~short4_2|) InVars {ULTIMATE.start_main_#t~mem2=|v_ULTIMATE.start_main_#t~mem2_3|} OutVars{ULTIMATE.start_main_#t~mem2=|v_ULTIMATE.start_main_#t~mem2_3|, ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~short4] 21#L8-2true [77] L8-2-->L8-6: Formula: (not |v_ULTIMATE.start_main_#t~short4_5|) InVars {ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_5|} OutVars{ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_5|} AuxVars[] AssignedVars[] 28#L8-6true [90] L8-6-->L9: Formula: |v_ULTIMATE.start_main_#t~short4_9| InVars {ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_9|} OutVars{ULTIMATE.start_main_#t~mem2=|v_ULTIMATE.start_main_#t~mem2_5|, ULTIMATE.start_main_#t~short4=|v_ULTIMATE.start_main_#t~short4_8|, ULTIMATE.start_main_#t~mem3=|v_ULTIMATE.start_main_#t~mem3_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~short4, ULTIMATE.start_main_#t~mem2, ULTIMATE.start_main_#t~mem3] 8#L9true [129] L9-->L10: Formula: (< 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 12#L10true [65] L10-->L10-1: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0.offset_6) (= |v_ULTIMATE.start_main_#t~mem6_2| (select (select |v_#memory_int_3| v_ULTIMATE.start_main_~x~0.base_7) v_ULTIMATE.start_main_~x~0.offset_6)) (<= (+ v_ULTIMATE.start_main_~x~0.offset_6 4) (select |v_#length_8| v_ULTIMATE.start_main_~x~0.base_7)) (= 1 (select |v_#valid_10| v_ULTIMATE.start_main_~x~0.base_7))) InVars {ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_6, #memory_int=|v_#memory_int_3|, #length=|v_#length_8|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_7, #valid=|v_#valid_10|} OutVars{#valid=|v_#valid_10|, ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_6, #memory_int=|v_#memory_int_3|, #length=|v_#length_8|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_7, ULTIMATE.start_main_#t~mem6=|v_ULTIMATE.start_main_#t~mem6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem6] 24#L10-1true [155] L10-1-->L9-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0.offset_13 4) (select |v_#length_19| v_ULTIMATE.start_main_~x~0.base_17)) (<= 0 v_ULTIMATE.start_main_~x~0.offset_13) (= 1 (select |v_#valid_30| v_ULTIMATE.start_main_~x~0.base_17)) (= (store |v_#memory_int_14| v_ULTIMATE.start_main_~x~0.base_17 (store (select |v_#memory_int_14| v_ULTIMATE.start_main_~x~0.base_17) v_ULTIMATE.start_main_~x~0.offset_13 (+ |v_ULTIMATE.start_main_#t~mem6_6| (- 1)))) |v_#memory_int_13|)) InVars {#valid=|v_#valid_30|, #memory_int=|v_#memory_int_14|, ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_13, #length=|v_#length_19|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_17, ULTIMATE.start_main_#t~mem6=|v_ULTIMATE.start_main_#t~mem6_6|} OutVars{#valid=|v_#valid_30|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~x~0.offset=v_ULTIMATE.start_main_~x~0.offset_13, #length=|v_#length_19|, ULTIMATE.start_main_~x~0.base=v_ULTIMATE.start_main_~x~0.base_17, ULTIMATE.start_main_#t~mem6=|v_ULTIMATE.start_main_#t~mem6_5|} AuxVars[] AssignedVars[#memory_int, ULTIMATE.start_main_#t~mem6] 5#L9-2true [2020-07-01 12:56:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:55,279 INFO L82 PathProgramCache]: Analyzing trace with hash 3650, now seen corresponding path program 1 times [2020-07-01 12:56:55,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:55,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342090413] [2020-07-01 12:56:55,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:55,296 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 12:56:55,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342090413] [2020-07-01 12:56:55,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:55,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 12:56:55,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338748839] [2020-07-01 12:56:55,298 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:56:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:55,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1808998383, now seen corresponding path program 1 times [2020-07-01 12:56:55,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:55,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847211261] [2020-07-01 12:56:55,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:56:55,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847211261] [2020-07-01 12:56:55,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:55,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 12:56:55,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19617187] [2020-07-01 12:56:55,313 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:56:55,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:55,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:55,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:55,315 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-07-01 12:56:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:55,370 INFO L93 Difference]: Finished difference Result 28 states and 47 transitions. [2020-07-01 12:56:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:55,374 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: unknown kind of automaton at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.toString(AutomatonDefinitionPrinter.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.TermcompProofBenchmark.reportFiniteModule(TermcompProofBenchmark.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:978) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 12:56:55,378 INFO L168 Benchmark]: Toolchain (without parser) took 1994.10 ms. Allocated memory was 514.9 MB in the beginning and 583.0 MB in the end (delta: 68.2 MB). Free memory was 437.7 MB in the beginning and 520.0 MB in the end (delta: -82.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:56:55,379 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:56:55,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.45 ms. Allocated memory was 514.9 MB in the beginning and 558.4 MB in the end (delta: 43.5 MB). Free memory was 437.7 MB in the beginning and 525.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 558.4 MB. Free memory was 525.1 MB in the beginning and 523.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,380 INFO L168 Benchmark]: Boogie Preprocessor took 23.28 ms. Allocated memory is still 558.4 MB. Free memory was 523.5 MB in the beginning and 521.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,381 INFO L168 Benchmark]: RCFGBuilder took 316.16 ms. Allocated memory is still 558.4 MB. Free memory was 521.9 MB in the beginning and 502.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,382 INFO L168 Benchmark]: BlockEncodingV2 took 111.11 ms. Allocated memory is still 558.4 MB. Free memory was 502.2 MB in the beginning and 493.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,382 INFO L168 Benchmark]: TraceAbstraction took 1040.53 ms. Allocated memory was 558.4 MB in the beginning and 583.0 MB in the end (delta: 24.6 MB). Free memory was 493.0 MB in the beginning and 539.1 MB in the end (delta: -46.1 MB). Peak memory consumption was 106.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,383 INFO L168 Benchmark]: BuchiAutomizer took 154.41 ms. Allocated memory is still 583.0 MB. Free memory was 539.1 MB in the beginning and 520.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:55,386 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 35 locations, 38 edges - StatisticsResult: Encoded RCFG 28 locations, 50 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 304.45 ms. Allocated memory was 514.9 MB in the beginning and 558.4 MB in the end (delta: 43.5 MB). Free memory was 437.7 MB in the beginning and 525.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 558.4 MB. Free memory was 525.1 MB in the beginning and 523.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 23.28 ms. Allocated memory is still 558.4 MB. Free memory was 523.5 MB in the beginning and 521.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 316.16 ms. Allocated memory is still 558.4 MB. Free memory was 521.9 MB in the beginning and 502.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 111.11 ms. Allocated memory is still 558.4 MB. Free memory was 502.2 MB in the beginning and 493.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 1040.53 ms. Allocated memory was 558.4 MB in the beginning and 583.0 MB in the end (delta: 24.6 MB). Free memory was 493.0 MB in the beginning and 539.1 MB in the end (delta: -46.1 MB). Peak memory consumption was 106.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 154.41 ms. Allocated memory is still 583.0 MB. Free memory was 539.1 MB in the beginning and 520.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 10]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-07-01 12:56:55,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-01 12:56:55,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:55,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((((4 == unknown-#length-unknown[y] && \valid[x] == 1) && 0 == y) && unknown-#length-unknown[x] == 4) && 1 <= unknown-#StackHeapBarrier-unknown) && 1 == \valid[y]) && 0 == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 179 SDslu, 3 SDs, 0 SdLazy, 158 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 30 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: unknown kind of automaton de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: unknown kind of automaton: de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-07-01 12:56:50.147 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_A88Ehi/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:56:55.621 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check