/usr/bin/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_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:08:41,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:08:41,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:08:41,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:08:41,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:08:41,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:08:41,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:08:41,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:08:41,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:08:41,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:08:41,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:08:41,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:08:41,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:08:41,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:08:41,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:08:41,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:08:41,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:08:41,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:08:41,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:08:41,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:08:41,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:08:41,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:08:41,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:08:41,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:08:41,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:08:41,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:08:41,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:08:41,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:08:41,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:08:41,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:08:41,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:08:41,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:08:41,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:08:41,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:08:41,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:08:41,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:08:41,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:08:41,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:08:41,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:08:41,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:08:41,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:08:41,160 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 [2019-11-07 04:08:41,185 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:08:41,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:08:41,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:08:41,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:08:41,188 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:08:41,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:08:41,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:08:41,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:08:41,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:08:41,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:08:41,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:08:41,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:08:41,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:08:41,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:08:41,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:08:41,191 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:08:41,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:08:41,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:08:41,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:08:41,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:08:41,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:08:41,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:08:41,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:08:41,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:08:41,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:08:41,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:08:41,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:08:41,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:08:41,194 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 [2019-11-07 04:08:41,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:08:41,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:08:41,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:08:41,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:08:41,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:08:41,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-11-07 04:08:41,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1079668cb/f51216ada31742e79f3570b91a603cf6/FLAG63aa8a832 [2019-11-07 04:08:42,208 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:08:42,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-11-07 04:08:42,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1079668cb/f51216ada31742e79f3570b91a603cf6/FLAG63aa8a832 [2019-11-07 04:08:42,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1079668cb/f51216ada31742e79f3570b91a603cf6 [2019-11-07 04:08:42,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:08:42,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:08:42,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:42,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:08:42,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:08:42,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:42" (1/1) ... [2019-11-07 04:08:42,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db7d270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:42, skipping insertion in model container [2019-11-07 04:08:42,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:42" (1/1) ... [2019-11-07 04:08:42,497 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:08:42,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:08:43,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:43,340 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:08:43,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:43,602 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:08:43,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43 WrapperNode [2019-11-07 04:08:43,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:43,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:08:43,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:08:43,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:08:43,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (1/1) ... [2019-11-07 04:08:43,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:08:43,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:08:43,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:08:43,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:08:43,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (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 [2019-11-07 04:08:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:08:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:08:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:08:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-07 04:08:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-07 04:08:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-07 04:08:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-07 04:08:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-07 04:08:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-07 04:08:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-07 04:08:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-07 04:08:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-07 04:08:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-07 04:08:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-07 04:08:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-07 04:08:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-07 04:08:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-07 04:08:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-07 04:08:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-07 04:08:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-07 04:08:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:08:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:08:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:08:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-07 04:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-07 04:08:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-07 04:08:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-07 04:08:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-07 04:08:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-07 04:08:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-07 04:08:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-07 04:08:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:08:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:08:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:08:43,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:08:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:08:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:08:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-07 04:08:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-07 04:08:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:08:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:08:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-07 04:08:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-07 04:08:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-07 04:08:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-07 04:08:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-07 04:08:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-07 04:08:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-07 04:08:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:08:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-07 04:08:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-07 04:08:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-07 04:08:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-07 04:08:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-07 04:08:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-07 04:08:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-07 04:08:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-07 04:08:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:08:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-07 04:08:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:08:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:08:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:08:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-07 04:08:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-07 04:08:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-07 04:08:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-07 04:08:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-07 04:08:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-07 04:08:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-07 04:08:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-07 04:08:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-07 04:08:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-11-07 04:08:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-07 04:08:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-07 04:08:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-07 04:08:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-07 04:08:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:08:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:08:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:08:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:08:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:08:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:08:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:08:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:08:48,813 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:08:48,813 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-07 04:08:48,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:08:48 BoogieIcfgContainer [2019-11-07 04:08:48,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:08:48,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:08:48,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:08:48,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:08:48,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:08:42" (1/3) ... [2019-11-07 04:08:48,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2828d9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:08:48, skipping insertion in model container [2019-11-07 04:08:48,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:43" (2/3) ... [2019-11-07 04:08:48,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2828d9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:08:48, skipping insertion in model container [2019-11-07 04:08:48,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:08:48" (3/3) ... [2019-11-07 04:08:48,823 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product19.cil.c [2019-11-07 04:08:48,833 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:08:48,842 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:08:48,853 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:08:48,883 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:08:48,883 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:08:48,883 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:08:48,883 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:08:48,883 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:08:48,883 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:08:48,884 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:08:48,884 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:08:48,921 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2019-11-07 04:08:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:08:48,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:48,944 INFO L410 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] [2019-11-07 04:08:48,946 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:48,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:48,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1031946066, now seen corresponding path program 1 times [2019-11-07 04:08:48,960 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:48,961 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900779766] [2019-11-07 04:08:48,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:49,701 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900779766] [2019-11-07 04:08:49,701 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:49,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:08:49,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498362921] [2019-11-07 04:08:49,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:08:49,711 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:49,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:08:49,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:08:49,728 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 2 states. [2019-11-07 04:08:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:49,840 INFO L93 Difference]: Finished difference Result 479 states and 712 transitions. [2019-11-07 04:08:49,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:08:49,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-11-07 04:08:49,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:49,888 INFO L225 Difference]: With dead ends: 479 [2019-11-07 04:08:49,888 INFO L226 Difference]: Without dead ends: 445 [2019-11-07 04:08:49,892 INFO L630 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 [2019-11-07 04:08:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-11-07 04:08:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-11-07 04:08:49,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-11-07 04:08:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 661 transitions. [2019-11-07 04:08:49,996 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 661 transitions. Word has length 135 [2019-11-07 04:08:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:49,999 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 661 transitions. [2019-11-07 04:08:49,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:08:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 661 transitions. [2019-11-07 04:08:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:08:50,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:50,009 INFO L410 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] [2019-11-07 04:08:50,010 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1066639949, now seen corresponding path program 1 times [2019-11-07 04:08:50,012 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:50,013 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398935909] [2019-11-07 04:08:50,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:50,553 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398935909] [2019-11-07 04:08:50,553 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:50,553 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:08:50,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160042445] [2019-11-07 04:08:50,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:08:50,557 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:50,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:08:50,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:08:50,558 INFO L87 Difference]: Start difference. First operand 445 states and 661 transitions. Second operand 7 states. [2019-11-07 04:08:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:54,550 INFO L93 Difference]: Finished difference Result 1240 states and 1894 transitions. [2019-11-07 04:08:54,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:08:54,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-11-07 04:08:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:54,559 INFO L225 Difference]: With dead ends: 1240 [2019-11-07 04:08:54,559 INFO L226 Difference]: Without dead ends: 848 [2019-11-07 04:08:54,565 INFO L630 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 [2019-11-07 04:08:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2019-11-07 04:08:54,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 823. [2019-11-07 04:08:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-11-07 04:08:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1252 transitions. [2019-11-07 04:08:54,641 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1252 transitions. Word has length 136 [2019-11-07 04:08:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:54,642 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 1252 transitions. [2019-11-07 04:08:54,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:08:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1252 transitions. [2019-11-07 04:08:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:08:54,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:54,647 INFO L410 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] [2019-11-07 04:08:54,647 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:54,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1466123957, now seen corresponding path program 1 times [2019-11-07 04:08:54,648 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:54,648 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175103500] [2019-11-07 04:08:54,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:55,017 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175103500] [2019-11-07 04:08:55,017 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:55,017 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:08:55,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278101479] [2019-11-07 04:08:55,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:08:55,019 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:55,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:08:55,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:08:55,020 INFO L87 Difference]: Start difference. First operand 823 states and 1252 transitions. Second operand 6 states. [2019-11-07 04:08:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:55,655 INFO L93 Difference]: Finished difference Result 862 states and 1308 transitions. [2019-11-07 04:08:55,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:08:55,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-11-07 04:08:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:55,664 INFO L225 Difference]: With dead ends: 862 [2019-11-07 04:08:55,664 INFO L226 Difference]: Without dead ends: 845 [2019-11-07 04:08:55,666 INFO L630 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 [2019-11-07 04:08:55,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-11-07 04:08:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 827. [2019-11-07 04:08:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-11-07 04:08:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1256 transitions. [2019-11-07 04:08:55,722 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1256 transitions. Word has length 140 [2019-11-07 04:08:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:55,723 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1256 transitions. [2019-11-07 04:08:55,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:08:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1256 transitions. [2019-11-07 04:08:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:08:55,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:55,727 INFO L410 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] [2019-11-07 04:08:55,727 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:55,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:55,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1925718676, now seen corresponding path program 1 times [2019-11-07 04:08:55,728 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:55,728 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104248478] [2019-11-07 04:08:55,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:55,961 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104248478] [2019-11-07 04:08:55,961 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:55,961 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:08:55,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985351852] [2019-11-07 04:08:55,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:08:55,962 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:55,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:08:55,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:08:55,963 INFO L87 Difference]: Start difference. First operand 827 states and 1256 transitions. Second operand 8 states. [2019-11-07 04:08:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:56,050 INFO L93 Difference]: Finished difference Result 848 states and 1282 transitions. [2019-11-07 04:08:56,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:08:56,051 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-11-07 04:08:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:56,058 INFO L225 Difference]: With dead ends: 848 [2019-11-07 04:08:56,059 INFO L226 Difference]: Without dead ends: 831 [2019-11-07 04:08:56,060 INFO L630 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 [2019-11-07 04:08:56,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-11-07 04:08:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 827. [2019-11-07 04:08:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-11-07 04:08:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1254 transitions. [2019-11-07 04:08:56,175 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1254 transitions. Word has length 145 [2019-11-07 04:08:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:56,176 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1254 transitions. [2019-11-07 04:08:56,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:08:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1254 transitions. [2019-11-07 04:08:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:08:56,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:56,181 INFO L410 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] [2019-11-07 04:08:56,181 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:56,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:56,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2019531158, now seen corresponding path program 1 times [2019-11-07 04:08:56,182 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:56,182 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712745901] [2019-11-07 04:08:56,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:08:57,281 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712745901] [2019-11-07 04:08:57,282 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007838527] [2019-11-07 04:08:57,282 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 [2019-11-07 04:08:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:57,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-07 04:08:57,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:08:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:08:58,168 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:08:58,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:08:58,790 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:08:58,791 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [29] total 36 [2019-11-07 04:08:58,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454887329] [2019-11-07 04:08:58,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:08:58,793 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:58,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:08:58,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2019-11-07 04:08:58,794 INFO L87 Difference]: Start difference. First operand 827 states and 1254 transitions. Second operand 9 states. [2019-11-07 04:08:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:58,896 INFO L93 Difference]: Finished difference Result 870 states and 1308 transitions. [2019-11-07 04:08:58,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:08:58,897 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2019-11-07 04:08:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:58,906 INFO L225 Difference]: With dead ends: 870 [2019-11-07 04:08:58,906 INFO L226 Difference]: Without dead ends: 853 [2019-11-07 04:08:58,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 04:08:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2019-11-07 04:08:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 839. [2019-11-07 04:08:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-11-07 04:08:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1266 transitions. [2019-11-07 04:08:58,980 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1266 transitions. Word has length 160 [2019-11-07 04:08:58,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:58,986 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1266 transitions. [2019-11-07 04:08:58,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:08:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1266 transitions. [2019-11-07 04:08:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 04:08:58,994 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:58,995 INFO L410 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] [2019-11-07 04:08:59,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:08:59,205 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:59,205 INFO L82 PathProgramCache]: Analyzing trace with hash 525391551, now seen corresponding path program 1 times [2019-11-07 04:08:59,263 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:59,263 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297861267] [2019-11-07 04:08:59,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 04:08:59,774 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297861267] [2019-11-07 04:08:59,774 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176711125] [2019-11-07 04:08:59,774 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 [2019-11-07 04:09:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:00,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-07 04:09:00,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:09:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-07 04:09:01,139 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:09:01,628 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:01,999 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:09:02,680 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:03,145 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-07 04:09:03,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,459 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:03,953 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:04,990 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:05,441 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-11-07 04:09:05,610 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-07 04:09:05,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:05,969 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 04:09:06,161 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:06,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:06,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:06,939 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:07,541 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:08,074 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:08,342 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-11-07 04:09:08,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:08,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,294 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:09,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,770 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:09,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,372 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:10,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,645 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,645 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:10,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,220 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:11,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:11,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:11,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:11,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:11,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-07 04:09:11,512 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [547172558] [2019-11-07 04:09:11,541 INFO L159 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-11-07 04:09:11,541 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:09:11,547 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:09:11,552 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:09:11,553 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs