java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:02:52,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:02:52,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:02:52,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:02:52,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:02:52,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:02:52,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:02:52,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:02:52,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:02:52,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:02:52,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:02:52,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:02:52,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:02:52,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:02:52,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:02:52,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:02:52,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:02:52,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:02:52,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:02:52,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:02:52,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:02:52,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:02:52,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:02:52,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:02:52,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:02:52,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:02:52,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:02:52,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:02:52,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:02:52,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:02:52,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:02:52,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:02:52,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:02:52,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:02:52,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:02:52,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:02:52,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:02:52,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:02:52,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:02:52,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:02:52,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:02:52,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:02:52,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:02:52,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:02:52,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:02:52,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:02:52,932 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:02:52,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:02:52,933 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:02:52,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:02:52,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:02:52,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:02:52,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:02:52,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:02:52,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:02:52,934 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:02:52,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:02:52,934 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:02:52,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:02:52,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:02:52,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:02:52,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:02:52,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:02:52,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:02:52,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:02:52,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:02:52,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:02:52,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:02:52,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:02:52,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:02:52,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:02:53,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:02:53,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:02:53,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:02:53,232 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:02:53,233 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:02:53,233 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-10-13 23:02:53,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37e1e75/f8d6a50bbc3346c685f1dabaff31d517/FLAGf6e880439 [2019-10-13 23:02:53,901 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:02:53,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-10-13 23:02:53,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37e1e75/f8d6a50bbc3346c685f1dabaff31d517/FLAGf6e880439 [2019-10-13 23:02:54,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37e1e75/f8d6a50bbc3346c685f1dabaff31d517 [2019-10-13 23:02:54,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:02:54,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:02:54,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:02:54,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:02:54,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:02:54,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:02:54" (1/1) ... [2019-10-13 23:02:54,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589f5987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:54, skipping insertion in model container [2019-10-13 23:02:54,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:02:54" (1/1) ... [2019-10-13 23:02:54,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:02:54,197 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:02:54,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:02:55,001 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:02:55,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:02:55,186 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:02:55,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55 WrapperNode [2019-10-13 23:02:55,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:02:55,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:02:55,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:02:55,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:02:55,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... [2019-10-13 23:02:55,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:02:55,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:02:55,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:02:55,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:02:55,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-10-13 23:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 23:02:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:02:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:02:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:02:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:02:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:02:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 23:02:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:02:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:02:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:02:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 23:02:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:02:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:02:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:02:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:02:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:02:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:02:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 23:02:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:02:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:02:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:02:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:02:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:02:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:02:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:02:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:02:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:02:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:02:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:02:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:02:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:02:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:02:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:02:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 23:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 23:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 23:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:02:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:02:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:02:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:02:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:02:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:02:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:02:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:02:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:02:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:02:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:02:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:02:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:02:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:02:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:02:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:03:00,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:03:00,609 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:03:00,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:00 BoogieIcfgContainer [2019-10-13 23:03:00,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:03:00,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:03:00,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:03:00,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:03:00,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:02:54" (1/3) ... [2019-10-13 23:03:00,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eaf8173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:00, skipping insertion in model container [2019-10-13 23:03:00,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:55" (2/3) ... [2019-10-13 23:03:00,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eaf8173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:00, skipping insertion in model container [2019-10-13 23:03:00,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:00" (3/3) ... [2019-10-13 23:03:00,620 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product11.cil.c [2019-10-13 23:03:00,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:03:00,642 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:03:00,654 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:03:00,701 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:03:00,701 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:03:00,701 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:03:00,701 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:03:00,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:03:00,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:03:00,702 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:03:00,702 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:03:00,739 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-10-13 23:03:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:03:00,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:00,764 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:03:00,767 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:00,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1182461957, now seen corresponding path program 1 times [2019-10-13 23:03:00,783 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:00,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452609650] [2019-10-13 23:03:00,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:00,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:00,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:01,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452609650] [2019-10-13 23:03:01,570 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:01,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:03:01,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016485911] [2019-10-13 23:03:01,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:03:01,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:01,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:03:01,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:03:01,596 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 2 states. [2019-10-13 23:03:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:01,702 INFO L93 Difference]: Finished difference Result 474 states and 706 transitions. [2019-10-13 23:03:01,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:03:01,704 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-13 23:03:01,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:01,744 INFO L225 Difference]: With dead ends: 474 [2019-10-13 23:03:01,745 INFO L226 Difference]: Without dead ends: 440 [2019-10-13 23:03:01,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:03:01,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-13 23:03:01,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2019-10-13 23:03:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-10-13 23:03:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 655 transitions. [2019-10-13 23:03:01,867 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 655 transitions. Word has length 135 [2019-10-13 23:03:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:01,870 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 655 transitions. [2019-10-13 23:03:01,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:03:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 655 transitions. [2019-10-13 23:03:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 23:03:01,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:01,877 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:03:01,878 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:01,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1045736166, now seen corresponding path program 1 times [2019-10-13 23:03:01,879 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:01,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110137174] [2019-10-13 23:03:01,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:01,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:01,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:02,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110137174] [2019-10-13 23:03:02,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:02,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:03:02,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502564175] [2019-10-13 23:03:02,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:03:02,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:02,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:03:02,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:03:02,396 INFO L87 Difference]: Start difference. First operand 440 states and 655 transitions. Second operand 7 states. [2019-10-13 23:03:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:06,238 INFO L93 Difference]: Finished difference Result 1225 states and 1876 transitions. [2019-10-13 23:03:06,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:03:06,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-13 23:03:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:06,247 INFO L225 Difference]: With dead ends: 1225 [2019-10-13 23:03:06,247 INFO L226 Difference]: Without dead ends: 838 [2019-10-13 23:03:06,253 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:03:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-10-13 23:03:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 813. [2019-10-13 23:03:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-10-13 23:03:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1240 transitions. [2019-10-13 23:03:06,353 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1240 transitions. Word has length 136 [2019-10-13 23:03:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:06,354 INFO L462 AbstractCegarLoop]: Abstraction has 813 states and 1240 transitions. [2019-10-13 23:03:06,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:03:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1240 transitions. [2019-10-13 23:03:06,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:03:06,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:06,358 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:03:06,359 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:06,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1456942530, now seen corresponding path program 1 times [2019-10-13 23:03:06,359 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:06,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644429521] [2019-10-13 23:03:06,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:06,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:06,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:06,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644429521] [2019-10-13 23:03:06,618 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:06,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:03:06,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705482584] [2019-10-13 23:03:06,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:03:06,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:06,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:03:06,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:03:06,620 INFO L87 Difference]: Start difference. First operand 813 states and 1240 transitions. Second operand 6 states. [2019-10-13 23:03:07,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:07,244 INFO L93 Difference]: Finished difference Result 852 states and 1296 transitions. [2019-10-13 23:03:07,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:03:07,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-13 23:03:07,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:07,256 INFO L225 Difference]: With dead ends: 852 [2019-10-13 23:03:07,257 INFO L226 Difference]: Without dead ends: 835 [2019-10-13 23:03:07,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:03:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-13 23:03:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 817. [2019-10-13 23:03:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-13 23:03:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1244 transitions. [2019-10-13 23:03:07,337 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1244 transitions. Word has length 140 [2019-10-13 23:03:07,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:07,341 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1244 transitions. [2019-10-13 23:03:07,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:03:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1244 transitions. [2019-10-13 23:03:07,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:03:07,348 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:07,349 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:03:07,349 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1766301213, now seen corresponding path program 1 times [2019-10-13 23:03:07,350 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:07,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54739537] [2019-10-13 23:03:07,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:07,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:07,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:07,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54739537] [2019-10-13 23:03:07,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:07,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:03:07,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572768009] [2019-10-13 23:03:07,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:03:07,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:07,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:03:07,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:03:07,703 INFO L87 Difference]: Start difference. First operand 817 states and 1244 transitions. Second operand 8 states. [2019-10-13 23:03:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:07,797 INFO L93 Difference]: Finished difference Result 838 states and 1270 transitions. [2019-10-13 23:03:07,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:03:07,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-13 23:03:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:07,805 INFO L225 Difference]: With dead ends: 838 [2019-10-13 23:03:07,806 INFO L226 Difference]: Without dead ends: 821 [2019-10-13 23:03:07,807 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:03:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-10-13 23:03:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 817. [2019-10-13 23:03:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-13 23:03:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1242 transitions. [2019-10-13 23:03:07,866 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1242 transitions. Word has length 145 [2019-10-13 23:03:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:07,867 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1242 transitions. [2019-10-13 23:03:07,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:03:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1242 transitions. [2019-10-13 23:03:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:03:07,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:07,873 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:03:07,873 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:07,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1194523864, now seen corresponding path program 1 times [2019-10-13 23:03:07,874 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:07,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442797651] [2019-10-13 23:03:07,874 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:07,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:07,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:03:09,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442797651] [2019-10-13 23:03:09,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035921382] [2019-10-13 23:03:09,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:03:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:09,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-13 23:03:09,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:03:09,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:03:10,002 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:03:10,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:03:10,707 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:03:10,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-10-13 23:03:10,708 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757259627] [2019-10-13 23:03:10,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:03:10,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:10,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:03:10,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1223, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 23:03:10,710 INFO L87 Difference]: Start difference. First operand 817 states and 1242 transitions. Second operand 7 states. [2019-10-13 23:03:10,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:10,802 INFO L93 Difference]: Finished difference Result 860 states and 1296 transitions. [2019-10-13 23:03:10,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:03:10,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-10-13 23:03:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:10,810 INFO L225 Difference]: With dead ends: 860 [2019-10-13 23:03:10,810 INFO L226 Difference]: Without dead ends: 843 [2019-10-13 23:03:10,812 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 23:03:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-13 23:03:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 829. [2019-10-13 23:03:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2019-10-13 23:03:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1254 transitions. [2019-10-13 23:03:10,864 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1254 transitions. Word has length 160 [2019-10-13 23:03:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:10,865 INFO L462 AbstractCegarLoop]: Abstraction has 829 states and 1254 transitions. [2019-10-13 23:03:10,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:03:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1254 transitions. [2019-10-13 23:03:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:03:10,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:10,870 INFO L380 BasicCegarLoop]: trace histogram [7, 3, 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] [2019-10-13 23:03:11,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:03:11,079 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:11,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:11,079 INFO L82 PathProgramCache]: Analyzing trace with hash 982452877, now seen corresponding path program 1 times [2019-10-13 23:03:11,079 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:11,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455786978] [2019-10-13 23:03:11,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:11,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:11,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:03:11,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455786978] [2019-10-13 23:03:11,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716003023] [2019-10-13 23:03:11,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:03:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:12,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 3330 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-13 23:03:12,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:03:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 23:03:13,215 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:03:13,709 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:14,087 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-13 23:03:14,875 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:15,276 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-13 23:03:15,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:16,090 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:17,138 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:17,646 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-13 23:03:17,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:17,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:18,209 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:18,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:18,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:18,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:19,013 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:19,604 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:20,159 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:20,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,808 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,305 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:21,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:21,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,297 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:22,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:22,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,115 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:23,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:23,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 23:03:23,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1871980966] [2019-10-13 23:03:23,378 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-13 23:03:23,379 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:03:23,385 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:03:23,393 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:03:23,393 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs