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/Problem07_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 13:42:36,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 13:42:36,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 13:42:36,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 13:42:36,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 13:42:36,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 13:42:36,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 13:42:36,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 13:42:36,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 13:42:36,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 13:42:36,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 13:42:36,743 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 13:42:36,744 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 13:42:36,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 13:42:36,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 13:42:36,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 13:42:36,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 13:42:36,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 13:42:36,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 13:42:36,754 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 13:42:36,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 13:42:36,757 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 13:42:36,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 13:42:36,760 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 13:42:36,760 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 13:42:36,761 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 13:42:36,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 13:42:36,765 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 13:42:36,767 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 13:42:36,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 13:42:36,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 13:42:36,770 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 13:42:36,770 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 13:42:36,770 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 13:42:36,771 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 13:42:36,772 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 13:42:36,772 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 [2018-10-24 13:42:36,802 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 13:42:36,802 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 13:42:36,803 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 13:42:36,803 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 13:42:36,804 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 13:42:36,805 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 13:42:36,805 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 13:42:36,805 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 13:42:36,805 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 13:42:36,806 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 13:42:36,806 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 13:42:36,806 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 13:42:36,806 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 13:42:36,807 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 13:42:36,807 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 13:42:36,807 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 13:42:36,807 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 13:42:36,808 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 13:42:36,809 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 13:42:36,809 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 13:42:36,809 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 13:42:36,810 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 13:42:36,810 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 13:42:36,810 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 13:42:36,810 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 13:42:36,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 13:42:36,811 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 13:42:36,811 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 13:42:36,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 13:42:36,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 13:42:36,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 13:42:36,893 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 13:42:36,893 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 13:42:36,894 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label40_false-unreach-call.c [2018-10-24 13:42:36,956 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8/FLAGa5b6a6e35 [2018-10-24 13:42:38,993 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 13:42:38,994 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label40_false-unreach-call.c [2018-10-24 13:42:39,160 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8/FLAGa5b6a6e35 [2018-10-24 13:42:39,178 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8 [2018-10-24 13:42:39,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 13:42:39,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 13:42:39,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 13:42:39,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 13:42:39,195 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 13:42:39,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:42:39" (1/1) ... [2018-10-24 13:42:39,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:39, skipping insertion in model container [2018-10-24 13:42:39,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:42:39" (1/1) ... [2018-10-24 13:42:39,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 13:42:40,767 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 13:42:51,312 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:42:51,316 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 13:42:58,457 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 13:42:59,410 INFO L193 MainTranslator]: Completed translation [2018-10-24 13:42:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59 WrapperNode [2018-10-24 13:42:59,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 13:42:59,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 13:42:59,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 13:42:59,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 13:42:59,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:42:59,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:04,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 13:43:04,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 13:43:04,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 13:43:04,584 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 13:43:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:04,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:04,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:04,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:05,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:06,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:06,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... [2018-10-24 13:43:06,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 13:43:06,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 13:43:06,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 13:43:06,842 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 13:43:06,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 13:43:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 13:43:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 13:43:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 13:44:00,127 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 13:44:00,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:00 BoogieIcfgContainer [2018-10-24 13:44:00,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 13:44:00,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 13:44:00,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 13:44:00,133 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 13:44:00,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:42:39" (1/3) ... [2018-10-24 13:44:00,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e997624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:00, skipping insertion in model container [2018-10-24 13:44:00,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (2/3) ... [2018-10-24 13:44:00,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e997624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:00, skipping insertion in model container [2018-10-24 13:44:00,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:00" (3/3) ... [2018-10-24 13:44:00,137 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label40_false-unreach-call.c [2018-10-24 13:44:00,147 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 13:44:00,165 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 13:44:00,182 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 13:44:00,258 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 13:44:00,259 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 13:44:00,259 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 13:44:00,259 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 13:44:00,259 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 13:44:00,259 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 13:44:00,259 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 13:44:00,259 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 13:44:00,260 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 13:44:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 10258 states. [2018-10-24 13:44:01,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10095 [2018-10-24 13:44:01,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:44:01,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:44:01,079 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:44:01,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:44:01,093 INFO L82 PathProgramCache]: Analyzing trace with hash 450478010, now seen corresponding path program 1 times [2018-10-24 13:44:01,096 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:44:01,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:44:01,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:44:01,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:44:01,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:44:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 13:45:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 13:45:27,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 13:45:27,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 13:45:27,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 13:45:27,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 13:45:27,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 13:45:27,118 INFO L87 Difference]: Start difference. First operand 10258 states. Second operand 3 states. [2018-10-24 13:46:27,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 13:46:27,738 INFO L93 Difference]: Finished difference Result 30708 states and 61137 transitions. [2018-10-24 13:46:27,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 13:46:27,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10094 [2018-10-24 13:46:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 13:46:27,902 INFO L225 Difference]: With dead ends: 30708 [2018-10-24 13:46:27,902 INFO L226 Difference]: Without dead ends: 20446 [2018-10-24 13:46:27,926 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 [2018-10-24 13:46:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20446 states. [2018-10-24 13:46:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20446 to 20446. [2018-10-24 13:46:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20446 states. [2018-10-24 13:46:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20446 states to 20446 states and 35956 transitions. [2018-10-24 13:46:28,566 INFO L78 Accepts]: Start accepts. Automaton has 20446 states and 35956 transitions. Word has length 10094 [2018-10-24 13:46:28,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 13:46:28,585 INFO L481 AbstractCegarLoop]: Abstraction has 20446 states and 35956 transitions. [2018-10-24 13:46:28,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 13:46:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand 20446 states and 35956 transitions. [2018-10-24 13:46:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10102 [2018-10-24 13:46:29,428 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 13:46:29,436 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 13:46:29,437 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 13:46:29,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 13:46:29,442 INFO L82 PathProgramCache]: Analyzing trace with hash 960028989, now seen corresponding path program 1 times [2018-10-24 13:46:29,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 13:46:29,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 13:46:29,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:46:29,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 13:46:29,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 13:46:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown