Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 00:16:56,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 00:16:56,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 00:16:56,161 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 00:16:56,161 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 00:16:56,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 00:16:56,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 00:16:56,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 00:16:56,166 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 00:16:56,167 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 00:16:56,168 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 00:16:56,168 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 00:16:56,169 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 00:16:56,170 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 00:16:56,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 00:16:56,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 00:16:56,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 00:16:56,174 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 00:16:56,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 00:16:56,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 00:16:56,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 00:16:56,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 00:16:56,181 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 00:16:56,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 00:16:56,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 00:16:56,183 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 00:16:56,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 00:16:56,184 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 00:16:56,184 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 00:16:56,185 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 00:16:56,185 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 00:16:56,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 00:16:56,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 00:16:56,187 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 00:16:56,188 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 00:16:56,188 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 00:16:56,188 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 00:16:56,189 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 00:16:56,190 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 00:16:56,190 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 00:16:56,205 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 00:16:56,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 00:16:56,206 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 00:16:56,207 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 00:16:56,207 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 00:16:56,207 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:16:56,207 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 00:16:56,207 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 00:16:56,208 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 00:16:56,209 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 00:16:56,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 00:16:56,209 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 00:16:56,209 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 00:16:56,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 00:16:56,210 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 00:16:56,210 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 00:16:56,210 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 00:16:56,210 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 00:16:56,210 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 00:16:56,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 00:16:56,211 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 00:16:56,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 00:16:56,211 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 00:16:56,211 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 00:16:56,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 00:16:56,252 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 00:16:56,256 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 00:16:56,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 00:16:56,258 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 00:16:56,259 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:16:56,324 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/151b0c9e63834995a78e997ff791cb89/FLAGe5c85371e [2020-06-22 00:16:56,660 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 00:16:56,661 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 00:16:56,668 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/151b0c9e63834995a78e997ff791cb89/FLAGe5c85371e [2020-06-22 00:16:57,085 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/151b0c9e63834995a78e997ff791cb89 [2020-06-22 00:16:57,097 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 00:16:57,099 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 00:16:57,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 00:16:57,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 00:16:57,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 00:16:57,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5a8013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57, skipping insertion in model container [2020-06-22 00:16:57,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 00:16:57,133 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 00:16:57,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:16:57,307 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 00:16:57,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 00:16:57,411 INFO L195 MainTranslator]: Completed translation [2020-06-22 00:16:57,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57 WrapperNode [2020-06-22 00:16:57,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 00:16:57,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 00:16:57,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 00:16:57,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 00:16:57,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 00:16:57,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 00:16:57,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 00:16:57,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 00:16:57,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (1/1) ... [2020-06-22 00:16:57,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 00:16:57,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 00:16:57,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 00:16:57,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 00:16:57,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (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 [2020-06-22 00:16:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-22 00:16:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 00:16:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 00:16:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 00:16:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-06-22 00:16:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-22 00:16:58,021 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 00:16:58,021 INFO L286 CfgBuilder]: Removed 14 assue(true) statements. [2020-06-22 00:16:58,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:16:58 BoogieIcfgContainer [2020-06-22 00:16:58,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 00:16:58,023 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 00:16:58,024 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 00:16:58,026 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 00:16:58,027 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:16:58" (1/1) ... [2020-06-22 00:16:58,047 INFO L313 BlockEncoder]: Initial Icfg 88 locations, 104 edges [2020-06-22 00:16:58,049 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 00:16:58,049 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 00:16:58,050 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 00:16:58,050 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 00:16:58,052 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 00:16:58,053 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 00:16:58,053 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 00:16:58,085 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 00:16:58,093 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-06-22 00:16:58,249 INFO L200 BlockEncoder]: SBE split 35 edges [2020-06-22 00:16:58,256 INFO L70 emoveInfeasibleEdges]: Removed 9 edges and 0 locations because of local infeasibility [2020-06-22 00:16:58,259 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:16:58,359 INFO L100 BaseMinimizeStates]: Removed 50 edges and 25 locations by large block encoding [2020-06-22 00:16:58,362 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-06-22 00:16:58,364 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 00:16:58,365 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 00:16:58,365 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 00:16:58,366 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 00:16:58,367 INFO L313 BlockEncoder]: Encoded RCFG 61 locations, 358 edges [2020-06-22 00:16:58,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:16:58 BasicIcfg [2020-06-22 00:16:58,368 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 00:16:58,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 00:16:58,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 00:16:58,372 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 00:16:58,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 12:16:57" (1/4) ... [2020-06-22 00:16:58,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5e0965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:16:58, skipping insertion in model container [2020-06-22 00:16:58,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 12:16:57" (2/4) ... [2020-06-22 00:16:58,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5e0965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:16:58, skipping insertion in model container [2020-06-22 00:16:58,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:16:58" (3/4) ... [2020-06-22 00:16:58,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5e0965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:16:58, skipping insertion in model container [2020-06-22 00:16:58,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 12:16:58" (4/4) ... [2020-06-22 00:16:58,376 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 00:16:58,386 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 00:16:58,394 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-06-22 00:16:58,410 INFO L257 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-06-22 00:16:58,439 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 00:16:58,439 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 00:16:58,440 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 00:16:58,440 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 00:16:58,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 00:16:58,440 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 00:16:58,440 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 00:16:58,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 00:16:58,440 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 00:16:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-06-22 00:16:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-06-22 00:16:58,465 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:16:58,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-06-22 00:16:58,466 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION]=== [2020-06-22 00:16:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:16:58,472 INFO L82 PathProgramCache]: Analyzing trace with hash 8276563, now seen corresponding path program 1 times [2020-06-22 00:16:58,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:16:58,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:16:58,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:16:58,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:16:58,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:16:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:16:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:16:58,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:16:58,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:16:58,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:16:58,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:16:58,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:16:58,736 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 3 states. [2020-06-22 00:17:00,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:17:00,437 INFO L93 Difference]: Finished difference Result 61 states and 358 transitions. [2020-06-22 00:17:00,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:17:00,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-06-22 00:17:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:17:00,453 INFO L225 Difference]: With dead ends: 61 [2020-06-22 00:17:00,453 INFO L226 Difference]: Without dead ends: 59 [2020-06-22 00:17:00,456 INFO L631 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 [2020-06-22 00:17:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-06-22 00:17:00,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-06-22 00:17:00,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-06-22 00:17:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 354 transitions. [2020-06-22 00:17:00,503 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 354 transitions. Word has length 4 [2020-06-22 00:17:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:17:00,505 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 354 transitions. [2020-06-22 00:17:00,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:17:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 354 transitions. [2020-06-22 00:17:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-06-22 00:17:00,506 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:17:00,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-06-22 00:17:00,506 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION]=== [2020-06-22 00:17:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:17:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 8276565, now seen corresponding path program 1 times [2020-06-22 00:17:00,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:17:00,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:17:00,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:00,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:17:00,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:17:00,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:17:00,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:17:00,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:17:00,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:17:00,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:17:00,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:17:00,583 INFO L87 Difference]: Start difference. First operand 59 states and 354 transitions. Second operand 3 states. [2020-06-22 00:17:02,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:17:02,134 INFO L93 Difference]: Finished difference Result 116 states and 451 transitions. [2020-06-22 00:17:02,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:17:02,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-06-22 00:17:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:17:02,136 INFO L225 Difference]: With dead ends: 116 [2020-06-22 00:17:02,137 INFO L226 Difference]: Without dead ends: 64 [2020-06-22 00:17:02,138 INFO L631 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 [2020-06-22 00:17:02,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-06-22 00:17:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2020-06-22 00:17:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-06-22 00:17:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 356 transitions. [2020-06-22 00:17:02,150 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 356 transitions. Word has length 4 [2020-06-22 00:17:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:17:02,150 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 356 transitions. [2020-06-22 00:17:02,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:17:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 356 transitions. [2020-06-22 00:17:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 00:17:02,151 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:17:02,151 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 00:17:02,151 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION]=== [2020-06-22 00:17:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:17:02,152 INFO L82 PathProgramCache]: Analyzing trace with hash 256562575, now seen corresponding path program 1 times [2020-06-22 00:17:02,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:17:02,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:17:02,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:02,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:17:02,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:17:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:17:02,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:17:02,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:17:02,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:17:02,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:17:02,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:17:02,218 INFO L87 Difference]: Start difference. First operand 61 states and 356 transitions. Second operand 3 states. [2020-06-22 00:17:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:17:03,713 INFO L93 Difference]: Finished difference Result 64 states and 361 transitions. [2020-06-22 00:17:03,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:17:03,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-22 00:17:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:17:03,715 INFO L225 Difference]: With dead ends: 64 [2020-06-22 00:17:03,715 INFO L226 Difference]: Without dead ends: 63 [2020-06-22 00:17:03,715 INFO L631 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 [2020-06-22 00:17:03,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-06-22 00:17:03,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-06-22 00:17:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-06-22 00:17:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 359 transitions. [2020-06-22 00:17:03,725 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 359 transitions. Word has length 5 [2020-06-22 00:17:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:17:03,726 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 359 transitions. [2020-06-22 00:17:03,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:17:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 359 transitions. [2020-06-22 00:17:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 00:17:03,726 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:17:03,726 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 00:17:03,727 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION]=== [2020-06-22 00:17:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:17:03,727 INFO L82 PathProgramCache]: Analyzing trace with hash 256562573, now seen corresponding path program 1 times [2020-06-22 00:17:03,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:17:03,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:17:03,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:03,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:17:03,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:17:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:17:03,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 00:17:03,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 00:17:03,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 00:17:03,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 00:17:03,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 00:17:03,792 INFO L87 Difference]: Start difference. First operand 62 states and 359 transitions. Second operand 3 states. [2020-06-22 00:17:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 00:17:05,213 INFO L93 Difference]: Finished difference Result 62 states and 359 transitions. [2020-06-22 00:17:05,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 00:17:05,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-22 00:17:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 00:17:05,215 INFO L225 Difference]: With dead ends: 62 [2020-06-22 00:17:05,215 INFO L226 Difference]: Without dead ends: 60 [2020-06-22 00:17:05,215 INFO L631 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 [2020-06-22 00:17:05,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-06-22 00:17:05,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-06-22 00:17:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-06-22 00:17:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 353 transitions. [2020-06-22 00:17:05,223 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 353 transitions. Word has length 5 [2020-06-22 00:17:05,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 00:17:05,223 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 353 transitions. [2020-06-22 00:17:05,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 00:17:05,224 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 353 transitions. [2020-06-22 00:17:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 00:17:05,224 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 00:17:05,224 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-06-22 00:17:05,224 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION]=== [2020-06-22 00:17:05,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 00:17:05,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1743571211, now seen corresponding path program 1 times [2020-06-22 00:17:05,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 00:17:05,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 00:17:05,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:05,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:17:05,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 00:17:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:17:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:17:05,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2020-06-22 00:17:05,327 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2020-06-22 00:17:05,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 00:17:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 00:17:05,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjunts are in the unsatisfiable core [2020-06-22 00:17:05,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 00:17:05,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,448 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,449 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,451 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,459 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,467 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,471 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,472 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,474 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,476 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,479 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,481 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,497 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2020-06-22 00:17:05,497 INFO L427 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-06-22 00:17:05,590 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:17:05,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-06-22 00:17:05,693 INFO L340 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:17:05,693 INFO L374 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 111 treesize of output 195 [2020-06-22 00:17:05,695 INFO L427 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-06-22 00:17:05,794 INFO L497 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-06-22 00:17:05,798 INFO L427 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-06-22 00:17:05,798 INFO L217 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:163, output treesize:145 [2020-06-22 00:17:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 00:17:05,934 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-06-22 00:17:05,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-06-22 00:17:05,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-06-22 00:17:05,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-06-22 00:17:05,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-06-22 00:17:05,936 INFO L87 Difference]: Start difference. First operand 60 states and 353 transitions. Second operand 6 states. [2020-06-22 00:20:31,352 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000) stderr output: (error "out of memory") [2020-06-22 00:20:31,354 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:652) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:256) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2020-06-22 00:20:31,356 INFO L168 Benchmark]: Toolchain (without parser) took 214258.93 ms. Allocated memory was 649.6 MB in the beginning and 758.1 MB in the end (delta: 108.5 MB). Free memory was 564.2 MB in the beginning and 372.4 MB in the end (delta: 191.8 MB). Peak memory consumption was 300.3 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,357 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 00:20:31,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.12 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 612.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 649.6 MB. Free memory was 612.9 MB in the beginning and 610.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,359 INFO L168 Benchmark]: Boogie Preprocessor took 31.59 ms. Allocated memory is still 649.6 MB. Free memory was 610.2 MB in the beginning and 607.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,359 INFO L168 Benchmark]: RCFGBuilder took 532.65 ms. Allocated memory is still 649.6 MB. Free memory was 607.5 MB in the beginning and 572.8 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,360 INFO L168 Benchmark]: BlockEncodingV2 took 344.33 ms. Allocated memory is still 649.6 MB. Free memory was 572.8 MB in the beginning and 519.1 MB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,361 INFO L168 Benchmark]: TraceAbstraction took 212987.13 ms. Allocated memory was 649.6 MB in the beginning and 758.1 MB in the end (delta: 108.5 MB). Free memory was 517.8 MB in the beginning and 372.4 MB in the end (delta: 145.3 MB). Peak memory consumption was 253.9 MB. Max. memory is 50.3 GB. [2020-06-22 00:20:31,364 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 88 locations, 104 edges - StatisticsResult: Encoded RCFG 61 locations, 358 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 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 312.12 ms. Allocated memory is still 649.6 MB. Free memory was 564.2 MB in the beginning and 612.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 649.6 MB. Free memory was 612.9 MB in the beginning and 610.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 31.59 ms. Allocated memory is still 649.6 MB. Free memory was 610.2 MB in the beginning and 607.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * RCFGBuilder took 532.65 ms. Allocated memory is still 649.6 MB. Free memory was 607.5 MB in the beginning and 572.8 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 344.33 ms. Allocated memory is still 649.6 MB. Free memory was 572.8 MB in the beginning and 519.1 MB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 212987.13 ms. Allocated memory was 649.6 MB in the beginning and 758.1 MB in the end (delta: 108.5 MB). Free memory was 517.8 MB in the beginning and 372.4 MB in the end (delta: 145.3 MB). Peak memory consumption was 253.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-06-22 00:16:53.777 ----------------------------------------------- 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 -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 00:20:31.395 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check