/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:56:37,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:56:37,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:56:37,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:56:37,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:56:37,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:56:37,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:56:37,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:56:37,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:56:37,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:56:37,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:56:37,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:56:37,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:56:37,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:56:37,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:56:37,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:56:37,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:56:37,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:56:37,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:56:37,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:56:37,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:56:37,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:56:37,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:56:37,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:56:37,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:56:37,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:56:37,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:56:37,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:56:37,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:56:37,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:56:37,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:56:37,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:56:37,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:56:37,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:56:37,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:56:37,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:56:37,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:56:37,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:56:37,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:56:37,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:56:37,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:56:37,488 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:56:37,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:56:37,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:56:37,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:56:37,503 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:56:37,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:56:37,504 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:56:37,504 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:56:37,504 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:56:37,504 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:56:37,504 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:56:37,505 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:56:37,505 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:56:37,505 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:56:37,505 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:56:37,505 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:56:37,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:56:37,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:56:37,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:56:37,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:56:37,506 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:56:37,506 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:56:37,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:56:37,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:56:37,507 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:56:37,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:56:37,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:56:37,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:56:37,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:56:37,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:56:37,673 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:56:37,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:56:37,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:56:37,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:56:37,691 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:56:37,692 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:56:37,755 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_zqA_sz/tmp/2f547d4d1bcf49bc954bdf7fd82daecc/FLAGf47bb985d [2020-07-01 12:56:38,111 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:56:38,111 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:56:38,112 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-07-01 12:56:38,118 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_zqA_sz/tmp/2f547d4d1bcf49bc954bdf7fd82daecc/FLAGf47bb985d [2020-07-01 12:56:38,527 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_zqA_sz/tmp/2f547d4d1bcf49bc954bdf7fd82daecc [2020-07-01 12:56:38,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:56:38,540 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:56:38,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:56:38,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:56:38,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:56:38,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6617dc46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38, skipping insertion in model container [2020-07-01 12:56:38,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:56:38,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:56:38,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:56:38,810 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:56:38,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:56:38,842 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:56:38,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38 WrapperNode [2020-07-01 12:56:38,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:56:38,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:56:38,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:56:38,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:56:38,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:56:38,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:56:38,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:56:38,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:56:38,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (1/1) ... [2020-07-01 12:56:38,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:56:38,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:56:38,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:56:38,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:56:38,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (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 12:56:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:56:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:56:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:56:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-01 12:56:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-01 12:56:39,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:56:39,162 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:56:39,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:39 BoogieIcfgContainer [2020-07-01 12:56:39,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:56:39,166 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:56:39,167 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:56:39,169 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:56:39,170 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:39" (1/1) ... [2020-07-01 12:56:39,183 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 17 edges [2020-07-01 12:56:39,185 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:56:39,186 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:56:39,186 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:56:39,187 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:56:39,189 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:56:39,189 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:56:39,190 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:56:39,205 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:56:39,222 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 12:56:39,227 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:56:39,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:56:39,256 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2020-07-01 12:56:39,258 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:56:39,259 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:56:39,260 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:56:39,260 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:56:39,260 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:56:39,260 INFO L313 BlockEncoder]: Encoded RCFG 7 locations, 11 edges [2020-07-01 12:56:39,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:39 BasicIcfg [2020-07-01 12:56:39,261 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:56:39,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:56:39,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:56:39,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:56:39,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:56:38" (1/4) ... [2020-07-01 12:56:39,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23daad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:56:39, skipping insertion in model container [2020-07-01 12:56:39,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (2/4) ... [2020-07-01 12:56:39,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23daad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:56:39, skipping insertion in model container [2020-07-01 12:56:39,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:39" (3/4) ... [2020-07-01 12:56:39,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23daad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:39, skipping insertion in model container [2020-07-01 12:56:39,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:39" (4/4) ... [2020-07-01 12:56:39,270 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:56:39,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:56:39,291 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-01 12:56:39,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-01 12:56:39,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:56:39,329 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:56:39,329 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:56:39,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:56:39,329 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:56:39,329 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:56:39,330 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:56:39,330 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:56:39,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-01 12:56:39,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 12:56:39,350 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:39,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 12:56:39,351 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2020-07-01 12:56:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:39,358 INFO L82 PathProgramCache]: Analyzing trace with hash 86507541, now seen corresponding path program 1 times [2020-07-01 12:56:39,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:39,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360892601] [2020-07-01 12:56:39,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:39,552 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 12:56:39,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360892601] [2020-07-01 12:56:39,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:39,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 12:56:39,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890164547] [2020-07-01 12:56:39,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-01 12:56:39,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:39,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 12:56:39,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-01 12:56:39,577 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2020-07-01 12:56:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:39,644 INFO L93 Difference]: Finished difference Result 8 states and 12 transitions. [2020-07-01 12:56:39,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 12:56:39,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-01 12:56:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:39,657 INFO L225 Difference]: With dead ends: 8 [2020-07-01 12:56:39,657 INFO L226 Difference]: Without dead ends: 7 [2020-07-01 12:56:39,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:56:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-07-01 12:56:39,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-07-01 12:56:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 12:56:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 12:56:39,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 9 transitions. Word has length 5 [2020-07-01 12:56:39,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:39,696 INFO L479 AbstractCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 12:56:39,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-01 12:56:39,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 9 transitions. [2020-07-01 12:56:39,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 12:56:39,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:39,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 12:56:39,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:56:39,698 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2020-07-01 12:56:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash 86507543, now seen corresponding path program 1 times [2020-07-01 12:56:39,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:39,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242959113] [2020-07-01 12:56:39,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:39,742 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 12:56:39,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242959113] [2020-07-01 12:56:39,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:39,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 12:56:39,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383563839] [2020-07-01 12:56:39,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-01 12:56:39,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:39,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 12:56:39,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-01 12:56:39,746 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2020-07-01 12:56:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:39,795 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2020-07-01 12:56:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 12:56:39,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-01 12:56:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:39,796 INFO L225 Difference]: With dead ends: 11 [2020-07-01 12:56:39,796 INFO L226 Difference]: Without dead ends: 10 [2020-07-01 12:56:39,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:56:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-07-01 12:56:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2020-07-01 12:56:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 12:56:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-07-01 12:56:39,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 12 transitions. Word has length 5 [2020-07-01 12:56:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:39,801 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 12:56:39,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-01 12:56:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 12 transitions. [2020-07-01 12:56:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 12:56:39,802 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:39,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 12:56:39,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-01 12:56:39,803 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2020-07-01 12:56:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:39,803 INFO L82 PathProgramCache]: Analyzing trace with hash 86507544, now seen corresponding path program 1 times [2020-07-01 12:56:39,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:39,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670592588] [2020-07-01 12:56:39,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:39,868 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 12:56:39,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670592588] [2020-07-01 12:56:39,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:39,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 12:56:39,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77947138] [2020-07-01 12:56:39,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-01 12:56:39,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:39,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 12:56:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 12:56:39,871 INFO L87 Difference]: Start difference. First operand 8 states and 12 transitions. Second operand 5 states. [2020-07-01 12:56:39,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:39,963 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2020-07-01 12:56:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 12:56:39,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-07-01 12:56:39,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:39,964 INFO L225 Difference]: With dead ends: 10 [2020-07-01 12:56:39,965 INFO L226 Difference]: Without dead ends: 9 [2020-07-01 12:56:39,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-01 12:56:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-07-01 12:56:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 12:56:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 12:56:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-07-01 12:56:39,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 11 transitions. Word has length 5 [2020-07-01 12:56:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:39,969 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-01 12:56:39,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-01 12:56:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-07-01 12:56:39,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-01 12:56:39,970 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:39,970 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-07-01 12:56:39,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-01 12:56:39,970 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2020-07-01 12:56:39,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:39,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1529377171, now seen corresponding path program 1 times [2020-07-01 12:56:39,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:39,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563638541] [2020-07-01 12:56:39,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:56:40,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563638541] [2020-07-01 12:56:40,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127035111] [2020-07-01 12:56:40,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:56:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:40,067 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-01 12:56:40,072 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:56:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:56:40,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:56:40,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-01 12:56:40,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034128026] [2020-07-01 12:56:40,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-01 12:56:40,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:40,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-01 12:56:40,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-01 12:56:40,136 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-01 12:56:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:40,210 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-07-01 12:56:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 12:56:40,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2020-07-01 12:56:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:40,211 INFO L225 Difference]: With dead ends: 10 [2020-07-01 12:56:40,211 INFO L226 Difference]: Without dead ends: 9 [2020-07-01 12:56:40,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-01 12:56:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-07-01 12:56:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-07-01 12:56:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 12:56:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-07-01 12:56:40,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 7 [2020-07-01 12:56:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:40,216 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-07-01 12:56:40,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-01 12:56:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2020-07-01 12:56:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-01 12:56:40,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:56:40,216 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-07-01 12:56:40,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:56:40,417 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2020-07-01 12:56:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1529377172, now seen corresponding path program 1 times [2020-07-01 12:56:40,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:40,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76289064] [2020-07-01 12:56:40,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 12:56:40,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76289064] [2020-07-01 12:56:40,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757614817] [2020-07-01 12:56:40,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:56:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:40,501 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 12:56:40,502 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:56:40,548 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-07-01 12:56:40,549 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 12:56:40,556 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 12:56:40,561 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-01 12:56:40,562 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:22 [2020-07-01 12:56:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 12:56:40,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 12:56:40,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-07-01 12:56:40,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056623391] [2020-07-01 12:56:40,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-01 12:56:40,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:40,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 12:56:40,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-01 12:56:40,611 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand 6 states. [2020-07-01 12:56:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:40,748 INFO L93 Difference]: Finished difference Result 8 states and 10 transitions. [2020-07-01 12:56:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 12:56:40,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-07-01 12:56:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:56:40,749 INFO L225 Difference]: With dead ends: 8 [2020-07-01 12:56:40,749 INFO L226 Difference]: Without dead ends: 0 [2020-07-01 12:56:40,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-01 12:56:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-01 12:56:40,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-01 12:56:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-01 12:56:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 12:56:40,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-07-01 12:56:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:56:40,751 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:56:40,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-01 12:56:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:56:40,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:56:40,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:56:40,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-01 12:56:41,103 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-07-01 12:56:41,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:56:41,107 INFO L268 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-07-01 12:56:41,107 INFO L268 CegarLoopResult]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2020-07-01 12:56:41,107 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-07-01 12:56:41,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:41,108 INFO L264 CegarLoopResult]: At program point L10-3(lines 10 14) the Hoare annotation is: (let ((.cse0 (select |#length| |ULTIMATE.start_sumOfThirdBytes_~#numbers.base|))) (let ((.cse1 (<= 1 ULTIMATE.start_main_~array_size~0)) (.cse2 (= (mod (* .cse0 3) (- 4)) 0)) (.cse3 (<= ULTIMATE.start_sumOfThirdBytes_~array_size (div (* .cse0 (- 1)) (- 4)))) (.cse4 (= 0 |ULTIMATE.start_sumOfThirdBytes_~#numbers.offset|)) (.cse5 (= 1 (select |#valid| |ULTIMATE.start_sumOfThirdBytes_~#numbers.base|)))) (or (and (<= 4 .cse0) .cse1 .cse2 .cse3 (= 0 ULTIMATE.start_sumOfThirdBytes_~i~0) .cse4 .cse5) (let ((.cse6 (select |#length| ULTIMATE.start_sumOfThirdBytes_~p~0.base))) (and (<= 1 ULTIMATE.start_sumOfThirdBytes_~i~0) .cse1 .cse2 .cse3 (<= (+ (div (+ (* ULTIMATE.start_sumOfThirdBytes_~p~0.offset (- 1)) 2) (- 4)) 1) (div (* .cse6 (- 1)) (- 4))) .cse4 (= 0 (mod (* .cse6 3) (- 4))) .cse5))))) [2020-07-01 12:56:41,108 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0REQUIRES_VIOLATION(line 13) no Hoare annotation was computed. [2020-07-01 12:56:41,110 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:56:41,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:41 BasicIcfg [2020-07-01 12:56:41,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:56:41,135 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:56:41,135 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:56:41,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:56:41,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:41,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:56:38" (1/5) ... [2020-07-01 12:56:41,140 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e845b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:56:41, skipping insertion in model container [2020-07-01 12:56:41,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:41,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:56:38" (2/5) ... [2020-07-01 12:56:41,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e845b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:56:41, skipping insertion in model container [2020-07-01 12:56:41,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:41,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:56:39" (3/5) ... [2020-07-01 12:56:41,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e845b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:56:41, skipping insertion in model container [2020-07-01 12:56:41,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:41,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:56:39" (4/5) ... [2020-07-01 12:56:41,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e845b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:56:41, skipping insertion in model container [2020-07-01 12:56:41,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:56:41,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:56:41" (5/5) ... [2020-07-01 12:56:41,144 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:56:41,172 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:56:41,172 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:56:41,172 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:56:41,172 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:56:41,172 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:56:41,173 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:56:41,173 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:56:41,173 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:56:41,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 12:56:41,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:56:41,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:56:41,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:56:41,185 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:56:41,185 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:56:41,185 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:56:41,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 12:56:41,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:56:41,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:56:41,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:56:41,186 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:56:41,187 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:56:41,192 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [61] ULTIMATE.startENTRY-->L20: Formula: (and (= 0 |v_#NULL.base_2|) (= (store |v_#valid_10| 0 0) |v_#valid_9|) (< 0 |v_#StackHeapBarrier_3|) (= 0 |v_#NULL.offset_2|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #valid=|v_#valid_10|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, ULTIMATE.start_main_#t~malloc3.base=|v_ULTIMATE.start_main_#t~malloc3.base_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_4|, ULTIMATE.start_main_~array_size~0=v_ULTIMATE.start_main_~array_size~0_8, ULTIMATE.start_main_~numbers~0.base=v_ULTIMATE.start_main_~numbers~0.base_3, #valid=|v_#valid_9|, ULTIMATE.start_main_~numbers~0.offset=v_ULTIMATE.start_main_~numbers~0.offset_3, #NULL.offset=|v_#NULL.offset_2|, ULTIMATE.start_main_#t~malloc3.offset=|v_ULTIMATE.start_main_#t~malloc3.offset_5|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~malloc3.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~array_size~0, ULTIMATE.start_main_~numbers~0.base, #valid, ULTIMATE.start_main_~numbers~0.offset, #NULL.offset, ULTIMATE.start_main_#t~malloc3.offset, #NULL.base, ULTIMATE.start_main_#t~ret4] 9#L20true [40] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~array_size~0_4 1) (< v_ULTIMATE.start_main_~array_size~0_5 1)) InVars {ULTIMATE.start_main_~array_size~0=v_ULTIMATE.start_main_~array_size~0_5} OutVars{ULTIMATE.start_main_~array_size~0=v_ULTIMATE.start_main_~array_size~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~array_size~0] 7#L20-2true [56] L20-2-->L10-3: Formula: (and (= |v_#length_1| (store |v_#length_2| |v_ULTIMATE.start_main_#t~malloc3.base_2| (* v_ULTIMATE.start_main_~array_size~0_7 4))) (= |v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.offset_1| v_ULTIMATE.start_main_~numbers~0.offset_2) (= 0 |v_ULTIMATE.start_main_#t~malloc3.offset_2|) (= v_ULTIMATE.start_sumOfThirdBytes_~sum~0_1 0) (= |v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.base_1| v_ULTIMATE.start_main_~numbers~0.base_2) (= |v_ULTIMATE.start_sumOfThirdBytes_#in~array_size_1| v_ULTIMATE.start_main_~array_size~0_7) (= v_ULTIMATE.start_main_~numbers~0.offset_2 |v_ULTIMATE.start_main_#t~malloc3.offset_2|) (= v_ULTIMATE.start_sumOfThirdBytes_~i~0_1 0) (= |v_#valid_3| (store |v_#valid_4| |v_ULTIMATE.start_main_#t~malloc3.base_2| 1)) (= v_ULTIMATE.start_sumOfThirdBytes_~array_size_1 |v_ULTIMATE.start_sumOfThirdBytes_#in~array_size_1|) (> 0 |v_ULTIMATE.start_main_#t~malloc3.base_2|) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_#t~malloc3.base_2|) (= v_ULTIMATE.start_main_~numbers~0.base_2 |v_ULTIMATE.start_main_#t~malloc3.base_2|) (= |v_ULTIMATE.start_sumOfThirdBytes_~#numbers.offset_1| |v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.offset_1|) (= 0 (select |v_#valid_4| |v_ULTIMATE.start_main_#t~malloc3.base_2|)) (= |v_ULTIMATE.start_sumOfThirdBytes_~#numbers.base_1| |v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.base_1|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_2|, #valid=|v_#valid_4|, ULTIMATE.start_main_~array_size~0=v_ULTIMATE.start_main_~array_size~0_7} OutVars{ULTIMATE.start_sumOfThirdBytes_~#numbers.offset=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.offset_1|, ULTIMATE.start_sumOfThirdBytes_~array_size=v_ULTIMATE.start_sumOfThirdBytes_~array_size_1, ULTIMATE.start_sumOfThirdBytes_#in~array_size=|v_ULTIMATE.start_sumOfThirdBytes_#in~array_size_1|, ULTIMATE.start_sumOfThirdBytes_~i~0=v_ULTIMATE.start_sumOfThirdBytes_~i~0_1, ULTIMATE.start_main_#t~malloc3.offset=|v_ULTIMATE.start_main_#t~malloc3.offset_2|, ULTIMATE.start_sumOfThirdBytes_~p~0.base=v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_1, ULTIMATE.start_sumOfThirdBytes_#t~mem1=|v_ULTIMATE.start_sumOfThirdBytes_#t~mem1_1|, #StackHeapBarrier=|v_#StackHeapBarrier_2|, ULTIMATE.start_sumOfThirdBytes_~p~0.offset=v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_1, ULTIMATE.start_main_#t~malloc3.base=|v_ULTIMATE.start_main_#t~malloc3.base_2|, ULTIMATE.start_sumOfThirdBytes_~#numbers.base=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.base_1|, #valid=|v_#valid_3|, ULTIMATE.start_main_~numbers~0.base=v_ULTIMATE.start_main_~numbers~0.base_2, ULTIMATE.start_main_~array_size~0=v_ULTIMATE.start_main_~array_size~0_7, ULTIMATE.start_main_~numbers~0.offset=v_ULTIMATE.start_main_~numbers~0.offset_2, #length=|v_#length_1|, ULTIMATE.start_sumOfThirdBytes_#t~post0=|v_ULTIMATE.start_sumOfThirdBytes_#t~post0_1|, ULTIMATE.start_sumOfThirdBytes_#in~numbers.base=|v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.base_1|, ULTIMATE.start_sumOfThirdBytes_#res=|v_ULTIMATE.start_sumOfThirdBytes_#res_1|, ULTIMATE.start_sumOfThirdBytes_#in~numbers.offset=|v_ULTIMATE.start_sumOfThirdBytes_#in~numbers.offset_1|, ULTIMATE.start_sumOfThirdBytes_~sum~0=v_ULTIMATE.start_sumOfThirdBytes_~sum~0_1} AuxVars[] AssignedVars[ULTIMATE.start_sumOfThirdBytes_~#numbers.offset, ULTIMATE.start_sumOfThirdBytes_~array_size, ULTIMATE.start_sumOfThirdBytes_#in~array_size, ULTIMATE.start_sumOfThirdBytes_~i~0, ULTIMATE.start_main_#t~malloc3.offset, ULTIMATE.start_sumOfThirdBytes_~p~0.base, ULTIMATE.start_sumOfThirdBytes_#t~mem1, ULTIMATE.start_sumOfThirdBytes_~p~0.offset, ULTIMATE.start_main_#t~malloc3.base, ULTIMATE.start_sumOfThirdBytes_~#numbers.base, #valid, ULTIMATE.start_main_~numbers~0.base, ULTIMATE.start_main_~numbers~0.offset, #length, ULTIMATE.start_sumOfThirdBytes_#t~post0, ULTIMATE.start_sumOfThirdBytes_#in~numbers.base, ULTIMATE.start_sumOfThirdBytes_#res, ULTIMATE.start_sumOfThirdBytes_#in~numbers.offset, ULTIMATE.start_sumOfThirdBytes_~sum~0] 6#L10-3true [2020-07-01 12:56:41,192 INFO L796 eck$LassoCheckResult]: Loop: 6#L10-3true [37] L10-3-->L13: Formula: (and (= (+ |v_ULTIMATE.start_sumOfThirdBytes_~#numbers.offset_3| (* 4 v_ULTIMATE.start_sumOfThirdBytes_~i~0_5) 2) v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_3) (= v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_3 |v_ULTIMATE.start_sumOfThirdBytes_~#numbers.base_3|) (< v_ULTIMATE.start_sumOfThirdBytes_~i~0_5 v_ULTIMATE.start_sumOfThirdBytes_~array_size_4)) InVars {ULTIMATE.start_sumOfThirdBytes_~i~0=v_ULTIMATE.start_sumOfThirdBytes_~i~0_5, ULTIMATE.start_sumOfThirdBytes_~#numbers.base=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.base_3|, ULTIMATE.start_sumOfThirdBytes_~#numbers.offset=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.offset_3|, ULTIMATE.start_sumOfThirdBytes_~array_size=v_ULTIMATE.start_sumOfThirdBytes_~array_size_4} OutVars{ULTIMATE.start_sumOfThirdBytes_~p~0.offset=v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_3, ULTIMATE.start_sumOfThirdBytes_~#numbers.base=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.base_3|, ULTIMATE.start_sumOfThirdBytes_~#numbers.offset=|v_ULTIMATE.start_sumOfThirdBytes_~#numbers.offset_3|, ULTIMATE.start_sumOfThirdBytes_~array_size=v_ULTIMATE.start_sumOfThirdBytes_~array_size_4, ULTIMATE.start_sumOfThirdBytes_~i~0=v_ULTIMATE.start_sumOfThirdBytes_~i~0_5, ULTIMATE.start_sumOfThirdBytes_~p~0.base=v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_3} AuxVars[] AssignedVars[ULTIMATE.start_sumOfThirdBytes_~p~0.offset, ULTIMATE.start_sumOfThirdBytes_~p~0.base] 8#L13true [65] L13-->L10-3: Formula: (and (= (+ v_ULTIMATE.start_sumOfThirdBytes_~i~0_11 1) v_ULTIMATE.start_sumOfThirdBytes_~i~0_10) (<= 0 v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_8) (= (select |v_#valid_14| v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_9) 1) (<= (+ v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_8 1) (select |v_#length_6| v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_9)) (= v_ULTIMATE.start_sumOfThirdBytes_~sum~0_11 (+ v_ULTIMATE.start_sumOfThirdBytes_~sum~0_12 (select (select |v_#memory_int_3| v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_9) v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_8)))) InVars {ULTIMATE.start_sumOfThirdBytes_~p~0.offset=v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_8, #valid=|v_#valid_14|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_sumOfThirdBytes_~i~0=v_ULTIMATE.start_sumOfThirdBytes_~i~0_11, #length=|v_#length_6|, ULTIMATE.start_sumOfThirdBytes_~p~0.base=v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_9, ULTIMATE.start_sumOfThirdBytes_~sum~0=v_ULTIMATE.start_sumOfThirdBytes_~sum~0_12} OutVars{ULTIMATE.start_sumOfThirdBytes_~p~0.offset=v_ULTIMATE.start_sumOfThirdBytes_~p~0.offset_8, #valid=|v_#valid_14|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_sumOfThirdBytes_~i~0=v_ULTIMATE.start_sumOfThirdBytes_~i~0_10, #length=|v_#length_6|, ULTIMATE.start_sumOfThirdBytes_#t~post0=|v_ULTIMATE.start_sumOfThirdBytes_#t~post0_4|, ULTIMATE.start_sumOfThirdBytes_~p~0.base=v_ULTIMATE.start_sumOfThirdBytes_~p~0.base_9, ULTIMATE.start_sumOfThirdBytes_#t~mem1=|v_ULTIMATE.start_sumOfThirdBytes_#t~mem1_7|, ULTIMATE.start_sumOfThirdBytes_~sum~0=v_ULTIMATE.start_sumOfThirdBytes_~sum~0_11} AuxVars[] AssignedVars[ULTIMATE.start_sumOfThirdBytes_~i~0, ULTIMATE.start_sumOfThirdBytes_#t~post0, ULTIMATE.start_sumOfThirdBytes_#t~mem1, ULTIMATE.start_sumOfThirdBytes_~sum~0] 6#L10-3true [2020-07-01 12:56:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:41,193 INFO L82 PathProgramCache]: Analyzing trace with hash 89708, now seen corresponding path program 1 times [2020-07-01 12:56:41,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:41,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679742228] [2020-07-01 12:56:41,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:56:41,209 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 12:56:41,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679742228] [2020-07-01 12:56:41,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:56:41,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 12:56:41,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176807518] [2020-07-01 12:56:41,211 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:56:41,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:56:41,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2173, now seen corresponding path program 1 times [2020-07-01 12:56:41,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:56:41,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284385349] [2020-07-01 12:56:41,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:56:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:56:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:56:41,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:56:41,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:56:41,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:56:41,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:56:41,282 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-07-01 12:56:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:56:41,293 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-07-01 12:56:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:56:41,296 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 12:56:41,299 INFO L168 Benchmark]: Toolchain (without parser) took 2759.40 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.7 MB in the beginning and 453.1 MB in the end (delta: 108.7 MB). Peak memory consumption was 145.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,300 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:56:41,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.93 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.7 MB in the beginning and 649.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.46 ms. Allocated memory is still 686.3 MB. Free memory was 649.2 MB in the beginning and 647.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,302 INFO L168 Benchmark]: Boogie Preprocessor took 24.22 ms. Allocated memory is still 686.3 MB. Free memory was 647.9 MB in the beginning and 646.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,302 INFO L168 Benchmark]: RCFGBuilder took 260.16 ms. Allocated memory is still 686.3 MB. Free memory was 646.6 MB in the beginning and 627.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,303 INFO L168 Benchmark]: BlockEncodingV2 took 94.83 ms. Allocated memory is still 686.3 MB. Free memory was 627.1 MB in the beginning and 620.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,303 INFO L168 Benchmark]: TraceAbstraction took 1871.87 ms. Allocated memory is still 686.3 MB. Free memory was 619.1 MB in the beginning and 470.6 MB in the end (delta: 148.4 MB). Peak memory consumption was 148.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,304 INFO L168 Benchmark]: BuchiAutomizer took 162.61 ms. Allocated memory is still 686.3 MB. Free memory was 470.6 MB in the beginning and 453.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:56:41,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 17 edges - StatisticsResult: Encoded RCFG 7 locations, 11 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 301.93 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 561.7 MB in the beginning and 649.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.46 ms. Allocated memory is still 686.3 MB. Free memory was 649.2 MB in the beginning and 647.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 24.22 ms. Allocated memory is still 686.3 MB. Free memory was 647.9 MB in the beginning and 646.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 260.16 ms. Allocated memory is still 686.3 MB. Free memory was 646.6 MB in the beginning and 627.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 94.83 ms. Allocated memory is still 686.3 MB. Free memory was 627.1 MB in the beginning and 620.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 1871.87 ms. Allocated memory is still 686.3 MB. Free memory was 619.1 MB in the beginning and 470.6 MB in the end (delta: 148.4 MB). Peak memory consumption was 148.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 162.61 ms. Allocated memory is still 686.3 MB. Free memory was 470.6 MB in the beginning and 453.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant [2020-07-01 12:56:41,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 12:56:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((4 <= unknown-#length-unknown[numbers] && 1 <= array_size) && unknown-#length-unknown[numbers] * 3 % -4 == 0) && array_size <= unknown-#length-unknown[numbers] * -1 / -4) && 0 == i) && 0 == numbers) && 1 == \valid[numbers]) || (((((((1 <= i && 1 <= array_size) && unknown-#length-unknown[numbers] * 3 % -4 == 0) && array_size <= unknown-#length-unknown[numbers] * -1 / -4) && (p * -1 + 2) / -4 + 1 <= unknown-#length-unknown[p] * -1 / -4) && 0 == numbers) && 0 == unknown-#length-unknown[p] * 3 % -4) && 1 == \valid[numbers]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 24 SDslu, 43 SDs, 0 SdLazy, 93 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=2, 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 98 HoareAnnotationTreeSize, 1 FomulaSimplifications, 186 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 18 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 3/8 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 12:56:35.244 ----------------------------------------------- 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_zqA_sz/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:56:41.547 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check