java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:06:05,383 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:06:05,385 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:06:05,401 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:06:05,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:06:05,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:06:05,406 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:06:05,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:06:05,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:06:05,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:06:05,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:06:05,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:06:05,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:06:05,420 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:06:05,421 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:06:05,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:06:05,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:06:05,425 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:06:05,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:06:05,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:06:05,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:06:05,430 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:06:05,432 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:06:05,432 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:06:05,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:06:05,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:06:05,435 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:06:05,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:06:05,436 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:06:05,437 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:06:05,438 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:06:05,438 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:06:05,438 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:06:05,439 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:06:05,439 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:06:05,440 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:06:05,441 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:06:05,469 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:06:05,469 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:06:05,470 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:06:05,470 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:06:05,470 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:06:05,471 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:06:05,471 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:06:05,471 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:06:05,471 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:06:05,471 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:06:05,472 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:06:05,472 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:06:05,472 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:06:05,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:06:05,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:06:05,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:06:05,473 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:06:05,473 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:06:05,474 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:06:05,474 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:06:05,474 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:06:05,474 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:06:05,474 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:06:05,475 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:06:05,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:06:05,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:06:05,475 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:06:05,475 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:06:05,476 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:06:05,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:06:05,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:06:05,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:06:05,549 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:06:05,549 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:06:05,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-10-24 19:06:05,621 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc87156e4/1c92e16cfb3042c0a6b3dcdec4349e2e/FLAG6f5c5fd44 [2018-10-24 19:06:06,567 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:06:06,568 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label31_false-unreach-call.c [2018-10-24 19:06:06,625 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc87156e4/1c92e16cfb3042c0a6b3dcdec4349e2e/FLAG6f5c5fd44 [2018-10-24 19:06:06,642 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc87156e4/1c92e16cfb3042c0a6b3dcdec4349e2e [2018-10-24 19:06:06,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:06:06,657 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:06:06,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:06:06,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:06:06,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:06:06,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:06" (1/1) ... [2018-10-24 19:06:06,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9de6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:06, skipping insertion in model container [2018-10-24 19:06:06,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:06" (1/1) ... [2018-10-24 19:06:06,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:06:06,970 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:06:08,872 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:06:08,877 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:06:09,927 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:06:09,983 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:06:09,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09 WrapperNode [2018-10-24 19:06:09,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:06:09,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:06:09,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:06:09,985 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:06:09,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:06:10,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:06:10,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:06:10,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:06:10,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:10,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:11,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:11,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... [2018-10-24 19:06:11,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:06:11,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:06:11,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:06:11,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:06:11,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:06:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:06:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:06:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 19:06:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 19:06:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 19:06:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 19:06:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 19:06:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 19:06:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 19:06:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 19:06:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 19:06:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 19:06:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:06:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:06:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:06:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:06:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:06:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:06:31,086 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:06:31,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:31 BoogieIcfgContainer [2018-10-24 19:06:31,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:06:31,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:06:31,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:06:31,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:06:31,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:06:06" (1/3) ... [2018-10-24 19:06:31,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c020e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:31, skipping insertion in model container [2018-10-24 19:06:31,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:09" (2/3) ... [2018-10-24 19:06:31,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c020e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:31, skipping insertion in model container [2018-10-24 19:06:31,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:31" (3/3) ... [2018-10-24 19:06:31,096 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label31_false-unreach-call.c [2018-10-24 19:06:31,107 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:06:31,120 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:06:31,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:06:31,194 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:06:31,194 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:06:31,195 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:06:31,195 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:06:31,195 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:06:31,195 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:06:31,195 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:06:31,196 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:06:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 19:06:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 19:06:31,263 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:31,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:06:31,267 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:31,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:31,274 INFO L82 PathProgramCache]: Analyzing trace with hash -46627102, now seen corresponding path program 1 times [2018-10-24 19:06:31,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:31,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:31,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:31,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:31,336 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:31,751 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 19:06:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:31,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:31,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:06:31,776 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:31,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:06:31,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:06:31,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:06:31,826 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-24 19:06:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:58,359 INFO L93 Difference]: Finished difference Result 6510 states and 12381 transitions. [2018-10-24 19:06:58,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:06:58,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-24 19:06:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:58,413 INFO L225 Difference]: With dead ends: 6510 [2018-10-24 19:06:58,413 INFO L226 Difference]: Without dead ends: 4726 [2018-10-24 19:06:58,429 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:06:58,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2018-10-24 19:06:58,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4687. [2018-10-24 19:06:58,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4687 states. [2018-10-24 19:06:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 7413 transitions. [2018-10-24 19:06:58,659 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 7413 transitions. Word has length 25 [2018-10-24 19:06:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:58,659 INFO L481 AbstractCegarLoop]: Abstraction has 4687 states and 7413 transitions. [2018-10-24 19:06:58,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:06:58,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 7413 transitions. [2018-10-24 19:06:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 19:06:58,665 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:58,665 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:06:58,666 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:58,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:58,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1494707308, now seen corresponding path program 1 times [2018-10-24 19:06:58,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:58,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:58,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:58,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:58,668 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:59,051 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:06:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:59,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:59,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:06:59,596 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:59,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:06:59,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:06:59,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:06:59,600 INFO L87 Difference]: Start difference. First operand 4687 states and 7413 transitions. Second operand 6 states. [2018-10-24 19:07:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:07:32,948 INFO L93 Difference]: Finished difference Result 17857 states and 28865 transitions. [2018-10-24 19:07:32,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:07:32,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-10-24 19:07:32,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:07:33,028 INFO L225 Difference]: With dead ends: 17857 [2018-10-24 19:07:33,028 INFO L226 Difference]: Without dead ends: 13176 [2018-10-24 19:07:33,054 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:07:33,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13176 states. [2018-10-24 19:07:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13176 to 13105. [2018-10-24 19:07:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13105 states. [2018-10-24 19:07:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13105 states to 13105 states and 18702 transitions. [2018-10-24 19:07:33,432 INFO L78 Accepts]: Start accepts. Automaton has 13105 states and 18702 transitions. Word has length 97 [2018-10-24 19:07:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:07:33,433 INFO L481 AbstractCegarLoop]: Abstraction has 13105 states and 18702 transitions. [2018-10-24 19:07:33,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:07:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 13105 states and 18702 transitions. [2018-10-24 19:07:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-24 19:07:33,438 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:07:33,438 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:07:33,438 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:07:33,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:07:33,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1774273419, now seen corresponding path program 1 times [2018-10-24 19:07:33,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:07:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:33,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:07:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:33,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:07:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:07:33,738 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:07:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:07:34,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:07:34,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:07:34,038 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:07:34,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:07:34,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:07:34,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:07:34,042 INFO L87 Difference]: Start difference. First operand 13105 states and 18702 transitions. Second operand 6 states. [2018-10-24 19:07:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:07:59,990 INFO L93 Difference]: Finished difference Result 43695 states and 64626 transitions. [2018-10-24 19:07:59,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:07:59,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-10-24 19:07:59,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:08:00,136 INFO L225 Difference]: With dead ends: 43695 [2018-10-24 19:08:00,136 INFO L226 Difference]: Without dead ends: 30596 [2018-10-24 19:08:00,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:08:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30596 states. [2018-10-24 19:08:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30596 to 30433. [2018-10-24 19:08:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30433 states. [2018-10-24 19:08:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30433 states to 30433 states and 42880 transitions. [2018-10-24 19:08:00,950 INFO L78 Accepts]: Start accepts. Automaton has 30433 states and 42880 transitions. Word has length 99 [2018-10-24 19:08:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:08:00,951 INFO L481 AbstractCegarLoop]: Abstraction has 30433 states and 42880 transitions. [2018-10-24 19:08:00,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:08:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 30433 states and 42880 transitions. [2018-10-24 19:08:00,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-24 19:08:00,958 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:08:00,959 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:08:00,962 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:08:00,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:00,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1185268562, now seen corresponding path program 1 times [2018-10-24 19:08:00,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:08:00,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:00,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:08:00,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:00,964 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:08:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:08:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:08:01,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:08:01,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:08:01,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:08:01,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:08:01,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:08:01,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:08:01,481 INFO L87 Difference]: Start difference. First operand 30433 states and 42880 transitions. Second operand 6 states. [2018-10-24 19:08:26,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:08:26,354 INFO L93 Difference]: Finished difference Result 92612 states and 135352 transitions. [2018-10-24 19:08:26,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:08:26,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-10-24 19:08:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:08:26,594 INFO L225 Difference]: With dead ends: 92612 [2018-10-24 19:08:26,594 INFO L226 Difference]: Without dead ends: 62185 [2018-10-24 19:08:26,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:08:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62185 states. [2018-10-24 19:08:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62185 to 61772. [2018-10-24 19:08:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61772 states. [2018-10-24 19:08:28,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61772 states to 61772 states and 86921 transitions. [2018-10-24 19:08:28,241 INFO L78 Accepts]: Start accepts. Automaton has 61772 states and 86921 transitions. Word has length 107 [2018-10-24 19:08:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:08:28,241 INFO L481 AbstractCegarLoop]: Abstraction has 61772 states and 86921 transitions. [2018-10-24 19:08:28,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:08:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 61772 states and 86921 transitions. [2018-10-24 19:08:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-24 19:08:28,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:08:28,248 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:08:28,248 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:08:28,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:28,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1569355644, now seen corresponding path program 1 times [2018-10-24 19:08:28,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:08:28,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:28,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:08:28,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:28,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:08:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:08:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:08:28,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:08:28,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:08:28,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:08:28,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:08:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:08:28,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:08:28,485 INFO L87 Difference]: Start difference. First operand 61772 states and 86921 transitions. Second operand 5 states. [2018-10-24 19:08:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:08:56,563 INFO L93 Difference]: Finished difference Result 187361 states and 274031 transitions. [2018-10-24 19:08:56,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 19:08:56,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-10-24 19:08:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:08:56,983 INFO L225 Difference]: With dead ends: 187361 [2018-10-24 19:08:56,984 INFO L226 Difference]: Without dead ends: 125595 [2018-10-24 19:08:57,117 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:08:57,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125595 states. [2018-10-24 19:09:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125595 to 124286. [2018-10-24 19:09:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124286 states. [2018-10-24 19:09:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124286 states to 124286 states and 163323 transitions. [2018-10-24 19:09:00,280 INFO L78 Accepts]: Start accepts. Automaton has 124286 states and 163323 transitions. Word has length 127 [2018-10-24 19:09:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:09:00,280 INFO L481 AbstractCegarLoop]: Abstraction has 124286 states and 163323 transitions. [2018-10-24 19:09:00,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:09:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 124286 states and 163323 transitions. [2018-10-24 19:09:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-24 19:09:00,284 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:09:00,284 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:09:00,285 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:09:00,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:09:00,286 INFO L82 PathProgramCache]: Analyzing trace with hash 140476345, now seen corresponding path program 1 times [2018-10-24 19:09:00,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:09:00,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:09:00,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:09:00,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:09:00,287 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:09:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:09:00,607 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:09:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:09:00,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:09:00,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:09:00,984 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:09:00,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:09:00,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:09:00,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:09:00,986 INFO L87 Difference]: Start difference. First operand 124286 states and 163323 transitions. Second operand 6 states. [2018-10-24 19:09:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:09:20,142 INFO L93 Difference]: Finished difference Result 280730 states and 388380 transitions. [2018-10-24 19:09:20,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:09:20,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2018-10-24 19:09:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:09:20,655 INFO L225 Difference]: With dead ends: 280730 [2018-10-24 19:09:20,655 INFO L226 Difference]: Without dead ends: 156450 [2018-10-24 19:09:20,839 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:09:20,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156450 states. [2018-10-24 19:09:24,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156450 to 155507. [2018-10-24 19:09:24,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155507 states. [2018-10-24 19:09:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155507 states to 155507 states and 205169 transitions. [2018-10-24 19:09:24,675 INFO L78 Accepts]: Start accepts. Automaton has 155507 states and 205169 transitions. Word has length 190 [2018-10-24 19:09:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:09:24,675 INFO L481 AbstractCegarLoop]: Abstraction has 155507 states and 205169 transitions. [2018-10-24 19:09:24,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:09:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 155507 states and 205169 transitions. [2018-10-24 19:09:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2018-10-24 19:09:24,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:09:24,695 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:09:24,696 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:09:24,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:09:24,697 INFO L82 PathProgramCache]: Analyzing trace with hash -979343248, now seen corresponding path program 1 times [2018-10-24 19:09:24,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:09:24,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:09:24,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:09:24,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:09:24,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:09:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:09:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:09:25,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:09:25,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:09:25,356 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:09:25,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:09:25,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:09:25,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:09:25,357 INFO L87 Difference]: Start difference. First operand 155507 states and 205169 transitions. Second operand 4 states. [2018-10-24 19:09:52,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:09:52,211 INFO L93 Difference]: Finished difference Result 432476 states and 600009 transitions. [2018-10-24 19:09:52,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:09:52,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2018-10-24 19:09:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:09:53,132 INFO L225 Difference]: With dead ends: 432476 [2018-10-24 19:09:53,133 INFO L226 Difference]: Without dead ends: 276975 [2018-10-24 19:09:53,346 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:09:53,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276975 states. Received shutdown request... [2018-10-24 19:10:04,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276975 to 276687. [2018-10-24 19:10:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276687 states. [2018-10-24 19:10:04,974 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:10:04,979 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:10:04,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:10:04 BoogieIcfgContainer [2018-10-24 19:10:04,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:10:04,981 INFO L168 Benchmark]: Toolchain (without parser) took 238325.67 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,982 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:10:04,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3325.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 998.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 725.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.8 MB). Free memory was 998.4 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,985 INFO L168 Benchmark]: Boogie Preprocessor took 467.73 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,985 INFO L168 Benchmark]: RCFGBuilder took 19908.58 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.5 MB). Peak memory consumption was 681.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,987 INFO L168 Benchmark]: TraceAbstraction took 213891.50 ms. Allocated memory was 2.5 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 19:10:04,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3325.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 998.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 725.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.8 MB). Free memory was 998.4 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 467.73 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19908.58 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.5 MB). Peak memory consumption was 681.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213891.50 ms. Allocated memory was 2.5 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 70). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 213.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 187.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5897 SDtfs, 46797 SDslu, 4986 SDs, 0 SdLazy, 68345 SolverSat, 16973 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 159.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155507occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 21.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 2938 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1264 NumberOfCodeBlocks, 1264 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1257 ConstructedInterpolants, 0 QuantifiedInterpolants, 839283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 108/108 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown