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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:56:46,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:56:46,577 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:56:46,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:56:46,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:56:46,590 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:56:46,592 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:56:46,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:56:46,596 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:56:46,597 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:56:46,598 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:56:46,598 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:56:46,599 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:56:46,600 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:56:46,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:56:46,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:56:46,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:56:46,606 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:56:46,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:56:46,610 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:56:46,611 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:56:46,612 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:56:46,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:56:46,615 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:56:46,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:56:46,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:56:46,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:56:46,619 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:56:46,620 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:56:46,621 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:56:46,621 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:56:46,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 18:56:46,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 18:56:46,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 18:56:46,624 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 18:56:46,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 18:56:46,625 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 18:56:46,658 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:56:46,658 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:56:46,659 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:56:46,660 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:56:46,660 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:56:46,660 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:56:46,661 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:56:46,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:56:46,661 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:56:46,661 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:56:46,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:56:46,666 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:56:46,666 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:56:46,666 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:56:46,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:56:46,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:56:46,667 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:56:46,667 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:56:46,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:56:46,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:56:46,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:56:46,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:56:46,669 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:56:46,670 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:56:46,670 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:56:46,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:56:46,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:56:46,671 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:56:46,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:56:46,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:56:46,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:56:46,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:56:46,754 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:56:46,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-23 18:56:46,835 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9094976ac/228ca213bd3749dc9dd40813361d56a0/FLAG84480eba6 [2018-10-23 18:56:47,489 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:56:47,490 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-23 18:56:47,513 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9094976ac/228ca213bd3749dc9dd40813361d56a0/FLAG84480eba6 [2018-10-23 18:56:47,533 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9094976ac/228ca213bd3749dc9dd40813361d56a0 [2018-10-23 18:56:47,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:56:47,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:56:47,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:56:47,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:56:47,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:56:47,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:56:47" (1/1) ... [2018-10-23 18:56:47,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14942e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:47, skipping insertion in model container [2018-10-23 18:56:47,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:56:47" (1/1) ... [2018-10-23 18:56:47,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:56:47,684 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:56:48,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:56:48,465 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:56:48,842 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:56:48,866 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:56:48,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48 WrapperNode [2018-10-23 18:56:48,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:56:48,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:56:48,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:56:48,868 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:56:48,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:48,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:56:49,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:56:49,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:56:49,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:56:49,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (1/1) ... [2018-10-23 18:56:49,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:56:49,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:56:49,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:56:49,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:56:49,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (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 [2018-10-23 18:56:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:56:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:56:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:56:55,086 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:56:55,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:56:55 BoogieIcfgContainer [2018-10-23 18:56:55,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:56:55,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:56:55,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:56:55,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:56:55,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:56:47" (1/3) ... [2018-10-23 18:56:55,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c0788f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:56:55, skipping insertion in model container [2018-10-23 18:56:55,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:56:48" (2/3) ... [2018-10-23 18:56:55,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c0788f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:56:55, skipping insertion in model container [2018-10-23 18:56:55,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:56:55" (3/3) ... [2018-10-23 18:56:55,098 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label46_true-unreach-call.c [2018-10-23 18:56:55,106 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:56:55,115 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:56:55,133 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:56:55,170 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:56:55,171 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:56:55,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:56:55,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:56:55,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:56:55,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:56:55,172 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:56:55,172 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:56:55,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:56:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-23 18:56:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-23 18:56:55,220 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:56:55,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:56:55,226 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:56:55,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:56:55,233 INFO L82 PathProgramCache]: Analyzing trace with hash -953673444, now seen corresponding path program 1 times [2018-10-23 18:56:55,235 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:56:55,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:56:55,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:56:55,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:56:55,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:56:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:56:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:56:56,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:56:56,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:56:56,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:56:56,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:56:56,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:56:56,277 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-23 18:57:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:00,283 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-10-23 18:57:00,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:00,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-10-23 18:57:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:00,311 INFO L225 Difference]: With dead ends: 1072 [2018-10-23 18:57:00,311 INFO L226 Difference]: Without dead ends: 762 [2018-10-23 18:57:00,316 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-23 18:57:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-10-23 18:57:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-10-23 18:57:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-10-23 18:57:00,440 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 186 [2018-10-23 18:57:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:00,442 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-10-23 18:57:00,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-10-23 18:57:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-23 18:57:00,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:00,457 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:57:00,459 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:00,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:00,460 INFO L82 PathProgramCache]: Analyzing trace with hash 675054029, now seen corresponding path program 1 times [2018-10-23 18:57:00,460 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:00,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:00,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:00,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:00,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:57:00,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:00,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:00,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:00,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:00,783 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-10-23 18:57:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:03,874 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-10-23 18:57:03,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:03,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2018-10-23 18:57:03,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:03,883 INFO L225 Difference]: With dead ends: 1918 [2018-10-23 18:57:03,884 INFO L226 Difference]: Without dead ends: 1402 [2018-10-23 18:57:03,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-10-23 18:57:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-10-23 18:57:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-10-23 18:57:03,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-10-23 18:57:03,923 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 192 [2018-10-23 18:57:03,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:03,924 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-10-23 18:57:03,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:03,927 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-10-23 18:57:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-23 18:57:03,931 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:03,931 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:57:03,931 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:03,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:03,932 INFO L82 PathProgramCache]: Analyzing trace with hash 598448987, now seen corresponding path program 1 times [2018-10-23 18:57:03,933 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:03,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:03,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:03,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:03,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:57:04,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:04,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:57:04,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:04,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:04,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:04,082 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-10-23 18:57:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:06,584 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-10-23 18:57:06,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:06,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2018-10-23 18:57:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:06,595 INFO L225 Difference]: With dead ends: 2699 [2018-10-23 18:57:06,595 INFO L226 Difference]: Without dead ends: 1768 [2018-10-23 18:57:06,598 INFO L605 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 [2018-10-23 18:57:06,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-10-23 18:57:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-10-23 18:57:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-10-23 18:57:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-10-23 18:57:06,636 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 195 [2018-10-23 18:57:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:06,636 INFO L481 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-10-23 18:57:06,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-10-23 18:57:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-23 18:57:06,641 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:06,642 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-10-23 18:57:06,642 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:06,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1492809433, now seen corresponding path program 1 times [2018-10-23 18:57:06,643 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:06,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:06,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:06,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:06,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 18:57:06,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:06,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:57:06,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:06,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:06,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:06,784 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-10-23 18:57:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:08,399 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-10-23 18:57:08,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:08,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2018-10-23 18:57:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:08,415 INFO L225 Difference]: With dead ends: 4329 [2018-10-23 18:57:08,415 INFO L226 Difference]: Without dead ends: 2580 [2018-10-23 18:57:08,418 INFO L605 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 [2018-10-23 18:57:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-10-23 18:57:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-10-23 18:57:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-10-23 18:57:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-10-23 18:57:08,468 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 203 [2018-10-23 18:57:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:08,468 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-10-23 18:57:08,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-10-23 18:57:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-23 18:57:08,475 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:08,475 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2018-10-23 18:57:08,476 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:08,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash -105176928, now seen corresponding path program 1 times [2018-10-23 18:57:08,476 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:08,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:08,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:08,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:08,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:08,608 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-23 18:57:08,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:08,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:57:08,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:08,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:08,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:08,610 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-10-23 18:57:09,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:09,108 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-10-23 18:57:09,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:09,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2018-10-23 18:57:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:09,142 INFO L225 Difference]: With dead ends: 7713 [2018-10-23 18:57:09,142 INFO L226 Difference]: Without dead ends: 5136 [2018-10-23 18:57:09,147 INFO L605 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 [2018-10-23 18:57:09,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-10-23 18:57:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-10-23 18:57:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-10-23 18:57:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-10-23 18:57:09,259 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 209 [2018-10-23 18:57:09,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:09,260 INFO L481 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-10-23 18:57:09,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-10-23 18:57:09,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-10-23 18:57:09,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:09,271 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-10-23 18:57:09,272 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:09,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:09,272 INFO L82 PathProgramCache]: Analyzing trace with hash 37695417, now seen corresponding path program 1 times [2018-10-23 18:57:09,272 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:09,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:09,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:09,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:09,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-23 18:57:09,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:57:09,649 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-23 18:57:09,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:09,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:57:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-23 18:57:09,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:57:09,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-23 18:57:09,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:09,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:09,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:09,903 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-10-23 18:57:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:12,335 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-10-23 18:57:12,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:12,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 218 [2018-10-23 18:57:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:12,417 INFO L225 Difference]: With dead ends: 20487 [2018-10-23 18:57:12,417 INFO L226 Difference]: Without dead ends: 15356 [2018-10-23 18:57:12,438 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-10-23 18:57:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-10-23 18:57:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-10-23 18:57:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-10-23 18:57:12,703 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 218 [2018-10-23 18:57:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:12,704 INFO L481 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-10-23 18:57:12,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-10-23 18:57:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-23 18:57:12,722 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:12,722 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:12,723 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:12,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:12,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1623450648, now seen corresponding path program 1 times [2018-10-23 18:57:12,723 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:12,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:12,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:12,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:12,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:57:13,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:13,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:57:13,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:57:13,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:57:13,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:57:13,006 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-10-23 18:57:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:15,862 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-10-23 18:57:15,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:57:15,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2018-10-23 18:57:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:15,896 INFO L225 Difference]: With dead ends: 23029 [2018-10-23 18:57:15,896 INFO L226 Difference]: Without dead ends: 12802 [2018-10-23 18:57:15,908 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:57:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-10-23 18:57:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-10-23 18:57:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-10-23 18:57:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-10-23 18:57:16,112 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 226 [2018-10-23 18:57:16,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:16,112 INFO L481 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-10-23 18:57:16,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:57:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-10-23 18:57:16,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-23 18:57:16,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:16,130 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 18:57:16,130 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:16,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:16,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1399517080, now seen corresponding path program 1 times [2018-10-23 18:57:16,131 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:16,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:16,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:16,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:16,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-23 18:57:16,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:16,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:16,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:16,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:16,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:16,392 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-10-23 18:57:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:19,135 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-10-23 18:57:19,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:19,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2018-10-23 18:57:19,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:19,187 INFO L225 Difference]: With dead ends: 41022 [2018-10-23 18:57:19,187 INFO L226 Difference]: Without dead ends: 29979 [2018-10-23 18:57:19,210 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-10-23 18:57:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-10-23 18:57:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-23 18:57:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-10-23 18:57:19,629 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 226 [2018-10-23 18:57:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:19,629 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-10-23 18:57:19,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-10-23 18:57:19,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-23 18:57:19,662 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:19,662 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-10-23 18:57:19,663 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:19,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:19,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1231663853, now seen corresponding path program 1 times [2018-10-23 18:57:19,663 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:19,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:19,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:19,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:19,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 18:57:19,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:19,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:19,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:19,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:19,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:19,818 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-10-23 18:57:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:21,702 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-10-23 18:57:21,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:21,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2018-10-23 18:57:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:21,738 INFO L225 Difference]: With dead ends: 40906 [2018-10-23 18:57:21,738 INFO L226 Difference]: Without dead ends: 20468 [2018-10-23 18:57:21,764 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:21,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-10-23 18:57:22,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-10-23 18:57:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-23 18:57:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-10-23 18:57:22,081 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 227 [2018-10-23 18:57:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:22,081 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-10-23 18:57:22,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:22,082 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-10-23 18:57:22,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-23 18:57:22,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:22,116 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 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] [2018-10-23 18:57:22,117 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:22,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:22,117 INFO L82 PathProgramCache]: Analyzing trace with hash -12127013, now seen corresponding path program 1 times [2018-10-23 18:57:22,117 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:22,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:22,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:22,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:22,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-23 18:57:22,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:22,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:22,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:22,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:22,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:22,278 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-10-23 18:57:23,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:23,918 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-10-23 18:57:23,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:23,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2018-10-23 18:57:23,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:23,966 INFO L225 Difference]: With dead ends: 57404 [2018-10-23 18:57:23,967 INFO L226 Difference]: Without dead ends: 36966 [2018-10-23 18:57:23,992 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:24,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-10-23 18:57:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-10-23 18:57:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-10-23 18:57:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-10-23 18:57:24,543 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 234 [2018-10-23 18:57:24,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:24,544 INFO L481 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-10-23 18:57:24,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-10-23 18:57:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-23 18:57:24,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:24,605 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:24,606 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:24,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:24,606 INFO L82 PathProgramCache]: Analyzing trace with hash 870198402, now seen corresponding path program 1 times [2018-10-23 18:57:24,606 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:24,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:24,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:24,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:24,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:57:24,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:24,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:24,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:24,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:24,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:24,806 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-10-23 18:57:26,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:26,993 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-10-23 18:57:26,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:26,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 242 [2018-10-23 18:57:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:27,052 INFO L225 Difference]: With dead ends: 87182 [2018-10-23 18:57:27,052 INFO L226 Difference]: Without dead ends: 50226 [2018-10-23 18:57:27,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:27,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-10-23 18:57:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-10-23 18:57:27,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-10-23 18:57:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-10-23 18:57:27,675 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 242 [2018-10-23 18:57:27,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:27,675 INFO L481 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-10-23 18:57:27,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-10-23 18:57:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-23 18:57:27,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:27,699 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:27,699 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:27,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:27,700 INFO L82 PathProgramCache]: Analyzing trace with hash -46748163, now seen corresponding path program 1 times [2018-10-23 18:57:27,700 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:27,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:27,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:27,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:27,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-23 18:57:27,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:27,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:57:27,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:27,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:27,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:27,903 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-10-23 18:57:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:28,920 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-10-23 18:57:28,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:28,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2018-10-23 18:57:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:28,982 INFO L225 Difference]: With dead ends: 99538 [2018-10-23 18:57:28,982 INFO L226 Difference]: Without dead ends: 49322 [2018-10-23 18:57:29,014 INFO L605 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 [2018-10-23 18:57:29,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-10-23 18:57:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-10-23 18:57:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-10-23 18:57:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-10-23 18:57:29,671 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 276 [2018-10-23 18:57:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:29,672 INFO L481 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-10-23 18:57:29,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:29,672 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-10-23 18:57:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-23 18:57:29,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:29,693 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:29,693 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:29,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:29,694 INFO L82 PathProgramCache]: Analyzing trace with hash -2654650, now seen corresponding path program 1 times [2018-10-23 18:57:29,694 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:29,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:29,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:29,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:29,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-23 18:57:30,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:30,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:30,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:30,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:30,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:30,530 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-10-23 18:57:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:34,701 INFO L93 Difference]: Finished difference Result 160811 states and 185593 transitions. [2018-10-23 18:57:34,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:34,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 286 [2018-10-23 18:57:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:34,832 INFO L225 Difference]: With dead ends: 160811 [2018-10-23 18:57:34,832 INFO L226 Difference]: Without dead ends: 111491 [2018-10-23 18:57:34,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111491 states. [2018-10-23 18:57:35,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111491 to 82368. [2018-10-23 18:57:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-10-23 18:57:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94327 transitions. [2018-10-23 18:57:35,883 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94327 transitions. Word has length 286 [2018-10-23 18:57:35,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:35,883 INFO L481 AbstractCegarLoop]: Abstraction has 82368 states and 94327 transitions. [2018-10-23 18:57:35,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94327 transitions. [2018-10-23 18:57:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-23 18:57:35,922 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:35,923 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:35,923 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:35,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash 441793273, now seen corresponding path program 1 times [2018-10-23 18:57:35,924 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:35,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:35,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:35,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:35,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-23 18:57:36,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:36,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:57:36,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:36,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:36,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:36,267 INFO L87 Difference]: Start difference. First operand 82368 states and 94327 transitions. Second operand 3 states. [2018-10-23 18:57:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:38,350 INFO L93 Difference]: Finished difference Result 164726 states and 188644 transitions. [2018-10-23 18:57:38,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:38,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2018-10-23 18:57:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:38,459 INFO L225 Difference]: With dead ends: 164726 [2018-10-23 18:57:38,459 INFO L226 Difference]: Without dead ends: 82360 [2018-10-23 18:57:38,516 INFO L605 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 [2018-10-23 18:57:38,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82360 states. [2018-10-23 18:57:39,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82360 to 82360. [2018-10-23 18:57:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82360 states. [2018-10-23 18:57:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82360 states to 82360 states and 94311 transitions. [2018-10-23 18:57:39,346 INFO L78 Accepts]: Start accepts. Automaton has 82360 states and 94311 transitions. Word has length 314 [2018-10-23 18:57:39,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:39,346 INFO L481 AbstractCegarLoop]: Abstraction has 82360 states and 94311 transitions. [2018-10-23 18:57:39,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:39,346 INFO L276 IsEmpty]: Start isEmpty. Operand 82360 states and 94311 transitions. [2018-10-23 18:57:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-10-23 18:57:39,369 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:39,369 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:39,370 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:39,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:39,370 INFO L82 PathProgramCache]: Analyzing trace with hash 547264015, now seen corresponding path program 1 times [2018-10-23 18:57:39,370 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:39,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:39,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:39,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:39,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:39,705 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-23 18:57:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 106 proven. 4 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-10-23 18:57:39,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:57:39,919 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:57:39,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:40,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:57:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-10-23 18:57:40,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:57:40,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:57:40,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:57:40,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:57:40,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:57:40,319 INFO L87 Difference]: Start difference. First operand 82360 states and 94311 transitions. Second operand 6 states. [2018-10-23 18:57:40,499 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-23 18:57:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:45,924 INFO L93 Difference]: Finished difference Result 242791 states and 278238 transitions. [2018-10-23 18:57:45,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 18:57:45,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 321 [2018-10-23 18:57:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:46,128 INFO L225 Difference]: With dead ends: 242791 [2018-10-23 18:57:46,129 INFO L226 Difference]: Without dead ends: 160433 [2018-10-23 18:57:46,195 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:57:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160433 states. [2018-10-23 18:57:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160433 to 159142. [2018-10-23 18:57:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159142 states. [2018-10-23 18:57:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159142 states to 159142 states and 177838 transitions. [2018-10-23 18:57:47,700 INFO L78 Accepts]: Start accepts. Automaton has 159142 states and 177838 transitions. Word has length 321 [2018-10-23 18:57:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:47,700 INFO L481 AbstractCegarLoop]: Abstraction has 159142 states and 177838 transitions. [2018-10-23 18:57:47,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:57:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 159142 states and 177838 transitions. [2018-10-23 18:57:47,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-10-23 18:57:47,729 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:47,729 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:47,729 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:47,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:47,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1724319799, now seen corresponding path program 1 times [2018-10-23 18:57:47,730 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:47,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:47,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:47,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:47,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:57:48,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:48,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:48,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:57:48,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:57:48,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:48,228 INFO L87 Difference]: Start difference. First operand 159142 states and 177838 transitions. Second operand 3 states. [2018-10-23 18:57:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:51,291 INFO L93 Difference]: Finished difference Result 326900 states and 365941 transitions. [2018-10-23 18:57:51,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:57:51,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2018-10-23 18:57:51,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:51,508 INFO L225 Difference]: With dead ends: 326900 [2018-10-23 18:57:51,509 INFO L226 Difference]: Without dead ends: 167760 [2018-10-23 18:57:51,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:57:51,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167760 states. [2018-10-23 18:57:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167760 to 167757. [2018-10-23 18:57:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167757 states. [2018-10-23 18:57:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167757 states to 167757 states and 186187 transitions. [2018-10-23 18:57:53,343 INFO L78 Accepts]: Start accepts. Automaton has 167757 states and 186187 transitions. Word has length 339 [2018-10-23 18:57:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:53,344 INFO L481 AbstractCegarLoop]: Abstraction has 167757 states and 186187 transitions. [2018-10-23 18:57:53,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:57:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 167757 states and 186187 transitions. [2018-10-23 18:57:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-10-23 18:57:53,374 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:53,374 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:53,374 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:53,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:53,375 INFO L82 PathProgramCache]: Analyzing trace with hash 172071673, now seen corresponding path program 1 times [2018-10-23 18:57:53,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:53,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:53,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:53,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:53,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:57:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-23 18:57:53,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:57:53,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:57:53,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:57:53,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:57:53,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:53,719 INFO L87 Difference]: Start difference. First operand 167757 states and 186187 transitions. Second operand 4 states. [2018-10-23 18:57:56,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:57:56,976 INFO L93 Difference]: Finished difference Result 346806 states and 385535 transitions. [2018-10-23 18:57:56,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:57:56,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 346 [2018-10-23 18:57:56,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:57:57,176 INFO L225 Difference]: With dead ends: 346806 [2018-10-23 18:57:57,176 INFO L226 Difference]: Without dead ends: 179051 [2018-10-23 18:57:57,252 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:57:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179051 states. [2018-10-23 18:57:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179051 to 179010. [2018-10-23 18:57:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179010 states. [2018-10-23 18:57:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179010 states to 179010 states and 198488 transitions. [2018-10-23 18:57:59,087 INFO L78 Accepts]: Start accepts. Automaton has 179010 states and 198488 transitions. Word has length 346 [2018-10-23 18:57:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:57:59,087 INFO L481 AbstractCegarLoop]: Abstraction has 179010 states and 198488 transitions. [2018-10-23 18:57:59,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:57:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 179010 states and 198488 transitions. [2018-10-23 18:57:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-10-23 18:57:59,121 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:57:59,121 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:57:59,121 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:57:59,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:57:59,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1694356248, now seen corresponding path program 1 times [2018-10-23 18:57:59,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:57:59,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:57:59,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:59,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:57:59,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:57:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:58:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-23 18:58:00,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:58:00,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:58:00,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:58:00,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:58:00,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:58:00,349 INFO L87 Difference]: Start difference. First operand 179010 states and 198488 transitions. Second operand 4 states. [2018-10-23 18:58:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:58:03,184 INFO L93 Difference]: Finished difference Result 656676 states and 727540 transitions. [2018-10-23 18:58:03,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:58:03,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2018-10-23 18:58:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:58:03,809 INFO L225 Difference]: With dead ends: 656676 [2018-10-23 18:58:03,809 INFO L226 Difference]: Without dead ends: 477668 [2018-10-23 18:58:03,975 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:58:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477668 states. [2018-10-23 18:58:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477668 to 306447. [2018-10-23 18:58:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306447 states. [2018-10-23 18:58:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306447 states to 306447 states and 339139 transitions. [2018-10-23 18:58:10,965 INFO L78 Accepts]: Start accepts. Automaton has 306447 states and 339139 transitions. Word has length 374 [2018-10-23 18:58:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:58:10,966 INFO L481 AbstractCegarLoop]: Abstraction has 306447 states and 339139 transitions. [2018-10-23 18:58:10,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:58:10,966 INFO L276 IsEmpty]: Start isEmpty. Operand 306447 states and 339139 transitions. [2018-10-23 18:58:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-10-23 18:58:11,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:58:11,002 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:58:11,002 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:58:11,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:58:11,003 INFO L82 PathProgramCache]: Analyzing trace with hash 927021162, now seen corresponding path program 1 times [2018-10-23 18:58:11,003 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:58:11,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:58:11,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:58:11,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:58:11,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:58:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:58:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:58:11,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:58:11,969 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:58:11,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:58:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:58:12,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:58:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-23 18:58:12,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:58:12,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-10-23 18:58:12,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 18:58:12,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 18:58:12,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:58:12,301 INFO L87 Difference]: Start difference. First operand 306447 states and 339139 transitions. Second operand 10 states. [2018-10-23 18:58:12,778 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-23 18:58:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:58:28,901 INFO L93 Difference]: Finished difference Result 864588 states and 959150 transitions. [2018-10-23 18:58:28,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-23 18:58:28,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 374 [2018-10-23 18:58:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:58:28,902 INFO L225 Difference]: With dead ends: 864588 [2018-10-23 18:58:28,902 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 18:58:29,131 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2018-10-23 18:58:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 18:58:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 18:58:29,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 18:58:29,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 18:58:29,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2018-10-23 18:58:29,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:58:29,132 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 18:58:29,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-23 18:58:29,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 18:58:29,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 18:58:29,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 18:59:13,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:13,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:14,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:15,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:15,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:16,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:16,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:16,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:16,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:16,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:17,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:18,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:18,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:18,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:18,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:19,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:20,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:20,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:21,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:21,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:22,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:22,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:22,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:23,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:23,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:23,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:23,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:24,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:24,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:24,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:25,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:25,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:25,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:25,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:26,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:26,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:27,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:27,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:27,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:27,936 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:27,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:28,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:28,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:28,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:29,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:29,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:30,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:30,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:30,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:30,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:31,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:31,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:31,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:32,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:32,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:32,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:33,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:33,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:34,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:35,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:36,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:36,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:36,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:37,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:39,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:39,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:39,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:39,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:39,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:40,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:40,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:41,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:41,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:42,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:42,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:42,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:43,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:43,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:44,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:44,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:44,885 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:45,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:45,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:46,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:47,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:47,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:47,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:48,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:50,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:51,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:51,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:52,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:53,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:54,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:54,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:54,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:55,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:55,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:55,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:56,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:57,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:58,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:58,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:58,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:58,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:59,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:59:59,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:00,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:00,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:00,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:01,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:01,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:01,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:04,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:04,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:04,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:04,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:05,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:07,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:08,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:08,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:10,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:12,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:13,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:13,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:15,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:15,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:16,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:16,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:18,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:18,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:19,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:19,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:20,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:20,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:21,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:21,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:22,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:23,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:23,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:23,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:24,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:26,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:26,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:27,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:28,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:28,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:28,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:29,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:29,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:31,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:33,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:33,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:34,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:35,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:38,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:38,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:41,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:42,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:43,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 19:00:46,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-23 19:00:46,908 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-23 19:00:46,909 INFO L168 Benchmark]: Toolchain (without parser) took 239362.78 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 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 3.5 GB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,910 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 19:00:46,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1318.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 340.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,912 INFO L168 Benchmark]: Boogie Preprocessor took 124.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,913 INFO L168 Benchmark]: RCFGBuilder took 5755.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 261.9 MB). Peak memory consumption was 261.9 MB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,914 INFO L168 Benchmark]: TraceAbstraction took 231818.33 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 1.9 GB in the beginning and 3.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-10-23 19:00:46,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1318.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 340.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5755.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 261.9 MB). Peak memory consumption was 261.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231818.33 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 1.9 GB in the beginning and 3.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1590]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 6481. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown