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_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:03:42,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:03:42,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:03:42,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:03:42,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:03:42,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:03:42,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:03:42,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:03:42,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:03:42,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:03:42,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:03:42,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:03:42,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:03:42,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:03:42,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:03:42,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:03:42,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:03:42,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:03:42,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:03:42,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:03:42,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:03:42,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:03:42,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:03:42,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:03:42,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:03:42,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:03:42,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:03:42,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:03:42,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:03:42,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:03:42,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:03:42,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:03:42,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:03:42,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:03:42,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:03:42,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:03:42,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:03:42,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:03:42,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:03:42,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:03:42,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:03:42,099 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 23:03:42,120 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:03:42,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:03:42,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:03:42,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:03:42,123 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:03:42,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:03:42,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:03:42,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:03:42,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:03:42,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:03:42,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:03:42,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:03:42,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:03:42,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:03:42,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:03:42,127 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:03:42,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:03:42,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:03:42,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:03:42,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:03:42,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:03:42,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:03:42,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:03:42,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:03:42,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:03:42,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:03:42,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:03:42,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:03:42,130 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 23:03:42,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:03:42,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:03:42,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:03:42,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:03:42,451 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:03:42,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2019-10-13 23:03:42,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65a64fd8/49684067486a4383aa45c5872f3f460a/FLAG4083799ba [2019-10-13 23:03:43,210 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:03:43,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2019-10-13 23:03:43,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65a64fd8/49684067486a4383aa45c5872f3f460a/FLAG4083799ba [2019-10-13 23:03:43,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65a64fd8/49684067486a4383aa45c5872f3f460a [2019-10-13 23:03:43,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:03:43,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:03:43,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:03:43,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:03:43,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:03:43,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:43" (1/1) ... [2019-10-13 23:03:43,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:43, skipping insertion in model container [2019-10-13 23:03:43,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:43" (1/1) ... [2019-10-13 23:03:43,401 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:03:43,476 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:03:44,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:44,194 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:03:44,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:44,478 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:03:44,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44 WrapperNode [2019-10-13 23:03:44,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:03:44,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:03:44,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:03:44,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:03:44,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (1/1) ... [2019-10-13 23:03:44,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:03:44,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:03:44,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:03:44,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:03:44,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (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 23:03:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:03:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:03:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:03:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:03:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:03:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:03:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:03:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:03:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:03:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:03:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:03:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:03:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:03:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:03:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:03:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 23:03:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:03:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 23:03:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:03:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:03:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:03:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:03:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:03:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:03:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:03:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:03:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:03:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-13 23:03:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:03:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-13 23:03:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:03:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:03:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:03:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:03:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:03:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:03:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:03:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:03:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-13 23:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-13 23:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:03:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:03:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:03:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:03:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:03:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:03:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:03:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:03:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:03:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:03:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:03:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:03:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:03:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:03:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:03:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:03:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:03:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:03:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:03:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:03:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:03:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:03:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:03:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:03:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:03:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:03:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:03:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:03:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:03:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-13 23:03:44,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:03:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:03:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:03:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:03:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:03:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:03:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:03:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:03:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:03:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:03:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:03:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:03:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:03:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:03:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:03:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:03:44,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:03:49,886 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:03:49,886 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:03:49,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:49 BoogieIcfgContainer [2019-10-13 23:03:49,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:03:49,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:03:49,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:03:49,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:03:49,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:03:43" (1/3) ... [2019-10-13 23:03:49,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d44ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:49, skipping insertion in model container [2019-10-13 23:03:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:44" (2/3) ... [2019-10-13 23:03:49,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d44ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:49, skipping insertion in model container [2019-10-13 23:03:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:49" (3/3) ... [2019-10-13 23:03:49,896 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.c [2019-10-13 23:03:49,907 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:03:49,917 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:03:49,929 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:03:49,961 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:03:49,962 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:03:49,962 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:03:49,962 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:03:49,962 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:03:49,962 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:03:49,962 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:03:49,963 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:03:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states. [2019-10-13 23:03:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-13 23:03:50,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:50,013 INFO L380 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] [2019-10-13 23:03:50,015 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:50,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:50,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1802026042, now seen corresponding path program 1 times [2019-10-13 23:03:50,032 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:50,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830367252] [2019-10-13 23:03:50,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:50,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:50,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:03:50,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830367252] [2019-10-13 23:03:50,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:50,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:03:50,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519009294] [2019-10-13 23:03:50,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:03:50,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:50,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:03:50,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:03:50,635 INFO L87 Difference]: Start difference. First operand 557 states. Second operand 2 states. [2019-10-13 23:03:50,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:50,709 INFO L93 Difference]: Finished difference Result 454 states and 681 transitions. [2019-10-13 23:03:50,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:03:50,711 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 74 [2019-10-13 23:03:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:50,735 INFO L225 Difference]: With dead ends: 454 [2019-10-13 23:03:50,735 INFO L226 Difference]: Without dead ends: 420 [2019-10-13 23:03:50,740 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 23:03:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-10-13 23:03:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2019-10-13 23:03:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2019-10-13 23:03:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 630 transitions. [2019-10-13 23:03:50,836 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 630 transitions. Word has length 74 [2019-10-13 23:03:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:50,838 INFO L462 AbstractCegarLoop]: Abstraction has 420 states and 630 transitions. [2019-10-13 23:03:50,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:03:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 630 transitions. [2019-10-13 23:03:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-13 23:03:50,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:50,846 INFO L380 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] [2019-10-13 23:03:50,846 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash 51124958, now seen corresponding path program 1 times [2019-10-13 23:03:50,847 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:50,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102342036] [2019-10-13 23:03:50,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:50,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:50,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:03:51,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102342036] [2019-10-13 23:03:51,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:51,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:03:51,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442655923] [2019-10-13 23:03:51,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:03:51,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:51,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:03:51,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:03:51,253 INFO L87 Difference]: Start difference. First operand 420 states and 630 transitions. Second operand 6 states. [2019-10-13 23:03:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:54,475 INFO L93 Difference]: Finished difference Result 1285 states and 1996 transitions. [2019-10-13 23:03:54,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:03:54,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2019-10-13 23:03:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:54,487 INFO L225 Difference]: With dead ends: 1285 [2019-10-13 23:03:54,487 INFO L226 Difference]: Without dead ends: 907 [2019-10-13 23:03:54,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:03:54,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2019-10-13 23:03:54,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 814. [2019-10-13 23:03:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 814 states. [2019-10-13 23:03:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1267 transitions. [2019-10-13 23:03:54,576 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1267 transitions. Word has length 75 [2019-10-13 23:03:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:54,577 INFO L462 AbstractCegarLoop]: Abstraction has 814 states and 1267 transitions. [2019-10-13 23:03:54,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:03:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1267 transitions. [2019-10-13 23:03:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-13 23:03:54,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:54,583 INFO L380 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] [2019-10-13 23:03:54,583 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:54,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:54,584 INFO L82 PathProgramCache]: Analyzing trace with hash -2067693136, now seen corresponding path program 1 times [2019-10-13 23:03:54,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:54,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041724948] [2019-10-13 23:03:54,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:54,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:54,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:03:54,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041724948] [2019-10-13 23:03:54,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:54,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:03:54,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767542871] [2019-10-13 23:03:54,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:03:54,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:54,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:03:54,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:03:54,862 INFO L87 Difference]: Start difference. First operand 814 states and 1267 transitions. Second operand 12 states. [2019-10-13 23:04:01,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:01,841 INFO L93 Difference]: Finished difference Result 2432 states and 3817 transitions. [2019-10-13 23:04:01,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-13 23:04:01,841 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2019-10-13 23:04:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:01,864 INFO L225 Difference]: With dead ends: 2432 [2019-10-13 23:04:01,864 INFO L226 Difference]: Without dead ends: 1660 [2019-10-13 23:04:01,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-13 23:04:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2019-10-13 23:04:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1601. [2019-10-13 23:04:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1601 states. [2019-10-13 23:04:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2497 transitions. [2019-10-13 23:04:02,003 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2497 transitions. Word has length 102 [2019-10-13 23:04:02,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:02,003 INFO L462 AbstractCegarLoop]: Abstraction has 1601 states and 2497 transitions. [2019-10-13 23:04:02,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:04:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2497 transitions. [2019-10-13 23:04:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 23:04:02,009 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:02,010 INFO L380 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] [2019-10-13 23:04:02,010 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:02,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1938272702, now seen corresponding path program 1 times [2019-10-13 23:04:02,011 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:02,011 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830044002] [2019-10-13 23:04:02,011 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:04:02,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830044002] [2019-10-13 23:04:02,239 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:02,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:04:02,240 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922906673] [2019-10-13 23:04:02,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:04:02,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:02,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:04:02,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:04:02,242 INFO L87 Difference]: Start difference. First operand 1601 states and 2497 transitions. Second operand 8 states. [2019-10-13 23:04:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:02,363 INFO L93 Difference]: Finished difference Result 3440 states and 5450 transitions. [2019-10-13 23:04:02,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:04:02,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-13 23:04:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:02,376 INFO L225 Difference]: With dead ends: 3440 [2019-10-13 23:04:02,376 INFO L226 Difference]: Without dead ends: 1883 [2019-10-13 23:04:02,384 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:04:02,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2019-10-13 23:04:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1625. [2019-10-13 23:04:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1625 states. [2019-10-13 23:04:02,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2521 transitions. [2019-10-13 23:04:02,489 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2521 transitions. Word has length 103 [2019-10-13 23:04:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:02,490 INFO L462 AbstractCegarLoop]: Abstraction has 1625 states and 2521 transitions. [2019-10-13 23:04:02,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:04:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2521 transitions. [2019-10-13 23:04:02,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 23:04:02,498 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:02,498 INFO L380 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] [2019-10-13 23:04:02,499 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:02,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:02,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1156112179, now seen corresponding path program 1 times [2019-10-13 23:04:02,499 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:02,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131798628] [2019-10-13 23:04:02,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:04:02,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131798628] [2019-10-13 23:04:02,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:02,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:04:02,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871776857] [2019-10-13 23:04:02,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:04:02,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:04:02,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:04:02,731 INFO L87 Difference]: Start difference. First operand 1625 states and 2521 transitions. Second operand 7 states. [2019-10-13 23:04:06,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:06,473 INFO L93 Difference]: Finished difference Result 4452 states and 6996 transitions. [2019-10-13 23:04:06,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 23:04:06,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2019-10-13 23:04:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:06,496 INFO L225 Difference]: With dead ends: 4452 [2019-10-13 23:04:06,496 INFO L226 Difference]: Without dead ends: 2871 [2019-10-13 23:04:06,509 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-13 23:04:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2019-10-13 23:04:06,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2806. [2019-10-13 23:04:06,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2806 states. [2019-10-13 23:04:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4431 transitions. [2019-10-13 23:04:06,688 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4431 transitions. Word has length 107 [2019-10-13 23:04:06,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:06,691 INFO L462 AbstractCegarLoop]: Abstraction has 2806 states and 4431 transitions. [2019-10-13 23:04:06,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:04:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4431 transitions. [2019-10-13 23:04:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-13 23:04:06,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:06,696 INFO L380 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] [2019-10-13 23:04:06,699 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:06,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:06,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1331959084, now seen corresponding path program 1 times [2019-10-13 23:04:06,700 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:06,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085881978] [2019-10-13 23:04:06,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:06,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:06,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:04:06,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085881978] [2019-10-13 23:04:06,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:06,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:04:06,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700936353] [2019-10-13 23:04:06,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:04:06,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:06,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:04:06,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:04:06,878 INFO L87 Difference]: Start difference. First operand 2806 states and 4431 transitions. Second operand 5 states. [2019-10-13 23:04:07,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:07,026 INFO L93 Difference]: Finished difference Result 4889 states and 7751 transitions. [2019-10-13 23:04:07,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:04:07,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2019-10-13 23:04:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:07,051 INFO L225 Difference]: With dead ends: 4889 [2019-10-13 23:04:07,051 INFO L226 Difference]: Without dead ends: 2870 [2019-10-13 23:04:07,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:04:07,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-10-13 23:04:07,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2846. [2019-10-13 23:04:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2846 states. [2019-10-13 23:04:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 4481 transitions. [2019-10-13 23:04:07,246 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 4481 transitions. Word has length 111 [2019-10-13 23:04:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:07,247 INFO L462 AbstractCegarLoop]: Abstraction has 2846 states and 4481 transitions. [2019-10-13 23:04:07,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:04:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 4481 transitions. [2019-10-13 23:04:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:04:07,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:07,252 INFO L380 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] [2019-10-13 23:04:07,252 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:07,253 INFO L82 PathProgramCache]: Analyzing trace with hash 369379332, now seen corresponding path program 1 times [2019-10-13 23:04:07,253 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:07,253 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457192770] [2019-10-13 23:04:07,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:07,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:07,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:07,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:04:07,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457192770] [2019-10-13 23:04:07,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:07,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:04:07,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455926721] [2019-10-13 23:04:07,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:04:07,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:04:07,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:04:07,500 INFO L87 Difference]: Start difference. First operand 2846 states and 4481 transitions. Second operand 7 states. [2019-10-13 23:04:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:11,395 INFO L93 Difference]: Finished difference Result 6776 states and 10686 transitions. [2019-10-13 23:04:11,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:04:11,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2019-10-13 23:04:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:11,428 INFO L225 Difference]: With dead ends: 6776 [2019-10-13 23:04:11,428 INFO L226 Difference]: Without dead ends: 4525 [2019-10-13 23:04:11,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:04:11,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4525 states. [2019-10-13 23:04:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4525 to 4461. [2019-10-13 23:04:11,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4461 states. [2019-10-13 23:04:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 6870 transitions. [2019-10-13 23:04:11,696 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 6870 transitions. Word has length 115 [2019-10-13 23:04:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:11,697 INFO L462 AbstractCegarLoop]: Abstraction has 4461 states and 6870 transitions. [2019-10-13 23:04:11,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:04:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 6870 transitions. [2019-10-13 23:04:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-13 23:04:11,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:11,701 INFO L380 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] [2019-10-13 23:04:11,702 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:11,702 INFO L82 PathProgramCache]: Analyzing trace with hash -97141019, now seen corresponding path program 1 times [2019-10-13 23:04:11,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:11,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329506249] [2019-10-13 23:04:11,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:11,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:11,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:04:11,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329506249] [2019-10-13 23:04:11,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:11,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:04:11,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262137743] [2019-10-13 23:04:11,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:04:11,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:11,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:04:11,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:04:11,875 INFO L87 Difference]: Start difference. First operand 4461 states and 6870 transitions. Second operand 7 states. [2019-10-13 23:04:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:12,174 INFO L93 Difference]: Finished difference Result 8867 states and 13964 transitions. [2019-10-13 23:04:12,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:04:12,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-10-13 23:04:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:12,203 INFO L225 Difference]: With dead ends: 8867 [2019-10-13 23:04:12,204 INFO L226 Difference]: Without dead ends: 4461 [2019-10-13 23:04:12,227 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:04:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4461 states. [2019-10-13 23:04:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4461 to 4461. [2019-10-13 23:04:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4461 states. [2019-10-13 23:04:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 6750 transitions. [2019-10-13 23:04:12,468 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 6750 transitions. Word has length 118 [2019-10-13 23:04:12,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:12,470 INFO L462 AbstractCegarLoop]: Abstraction has 4461 states and 6750 transitions. [2019-10-13 23:04:12,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:04:12,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 6750 transitions. [2019-10-13 23:04:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 23:04:12,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:12,475 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:04:12,476 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:12,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:12,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1956552649, now seen corresponding path program 1 times [2019-10-13 23:04:12,477 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:12,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882737369] [2019-10-13 23:04:12,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:12,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:12,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:04:12,821 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882737369] [2019-10-13 23:04:12,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:12,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:04:12,822 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582620646] [2019-10-13 23:04:12,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:04:12,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:12,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:04:12,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:04:12,824 INFO L87 Difference]: Start difference. First operand 4461 states and 6750 transitions. Second operand 7 states.