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 -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:19:56,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:19:56,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:19:56,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:19:56,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:19:56,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:19:56,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:19:56,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:19:56,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:19:56,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:19:56,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:19:56,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:19:56,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:19:56,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:19:56,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:19:56,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:19:56,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:19:56,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:19:56,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:19:56,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:19:56,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:19:56,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:19:56,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:19:56,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:19:56,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:19:56,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:19:56,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:19:56,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:19:56,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:19:56,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:19:56,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:19:56,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:19:56,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:19:56,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:19:56,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:19:56,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:19:56,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:19:56,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:19:56,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:19:56,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:19:56,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:19:56,988 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 [2019-10-14 23:19:57,002 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:19:57,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:19:57,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:19:57,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:19:57,005 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:19:57,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:19:57,005 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:19:57,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:19:57,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:19:57,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:19:57,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:19:57,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:19:57,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:19:57,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:19:57,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:19:57,007 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:19:57,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:19:57,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:19:57,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:19:57,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:19:57,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:19:57,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:19:57,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:19:57,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:19:57,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:19:57,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:19:57,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:19:57,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:19:57,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:19:57,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:19:57,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:19:57,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:19:57,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:19:57,321 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:19:57,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2019-10-14 23:19:57,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6221a2ae1/7fd69990b23b42509661148ef6584963/FLAGb48c8ed18 [2019-10-14 23:19:58,020 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:19:58,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2019-10-14 23:19:58,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6221a2ae1/7fd69990b23b42509661148ef6584963/FLAGb48c8ed18 [2019-10-14 23:19:58,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6221a2ae1/7fd69990b23b42509661148ef6584963 [2019-10-14 23:19:58,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:19:58,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:19:58,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:58,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:19:58,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:19:58,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:58" (1/1) ... [2019-10-14 23:19:58,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ad9034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:58, skipping insertion in model container [2019-10-14 23:19:58,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:58" (1/1) ... [2019-10-14 23:19:58,264 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:19:58,354 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:19:59,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:59,050 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:19:59,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:59,303 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:19:59,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59 WrapperNode [2019-10-14 23:19:59,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:59,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:19:59,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:19:59,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:19:59,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (1/1) ... [2019-10-14 23:19:59,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:19:59,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:19:59,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:19:59,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:19:59,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (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 [2019-10-14 23:19:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:19:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:19:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:19:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:19:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-14 23:19:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:19:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:19:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:19:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:19:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:19:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:19:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:19:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-14 23:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:19:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-14 23:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:19:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:19:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:19:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:19:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:19:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:19:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:19:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:19:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:19:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:19:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:19:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:19:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:19:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:19:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:19:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:19:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:19:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:19:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:19:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:19:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:19:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:19:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:19:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:19:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:19:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:19:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:19:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:19:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:19:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:19:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:19:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:19:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:19:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:19:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:19:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:19:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:19:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:19:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:19:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:19:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:19:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:19:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:19:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:19:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-14 23:19:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-14 23:19:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-14 23:19:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:19:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:19:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:19:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:19:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:19:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:19:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:19:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:19:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:19:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:19:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:19:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:19:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:19:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:19:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:19:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:19:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:19:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-14 23:19:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:19:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:19:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:19:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:19:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:19:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:19:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-14 23:19:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:19:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:19:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-14 23:19:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:19:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:19:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-14 23:19:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:19:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:19:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:19:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:19:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:19:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:19:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:19:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:19:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:19:59,687 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:19:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:19:59,688 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:19:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:19:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:19:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:19:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:19:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:19:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:19:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:19:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:19:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:19:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-14 23:19:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:19:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:19:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:19:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:19:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:19:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:19:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:19:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:19:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:19:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:19:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:19:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:19:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:19:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:19:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:19:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-14 23:19:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:19:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:19:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:19:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:20:02,200 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:20:02,200 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:20:02,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:02 BoogieIcfgContainer [2019-10-14 23:20:02,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:20:02,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:20:02,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:20:02,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:20:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:19:58" (1/3) ... [2019-10-14 23:20:02,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8aab5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:02, skipping insertion in model container [2019-10-14 23:20:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:59" (2/3) ... [2019-10-14 23:20:02,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8aab5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:02, skipping insertion in model container [2019-10-14 23:20:02,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:02" (3/3) ... [2019-10-14 23:20:02,214 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.c [2019-10-14 23:20:02,225 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:20:02,237 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:20:02,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:20:02,294 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:20:02,294 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:20:02,294 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:20:02,294 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:20:02,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:20:02,295 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:20:02,295 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:20:02,295 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:20:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-10-14 23:20:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-14 23:20:02,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:02,360 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:02,362 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:02,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1975081631, now seen corresponding path program 1 times [2019-10-14 23:20:02,377 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:02,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142231274] [2019-10-14 23:20:02,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:02,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:02,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,963 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,265 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,567 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:04,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142231274] [2019-10-14 23:20:04,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101642943] [2019-10-14 23:20:04,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 3273 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-14 23:20:05,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-14 23:20:05,671 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:05,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2019-10-14 23:20:05,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234884007] [2019-10-14 23:20:05,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:20:05,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:05,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:20:05,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:20:05,694 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 2 states. [2019-10-14 23:20:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:05,782 INFO L93 Difference]: Finished difference Result 657 states and 1045 transitions. [2019-10-14 23:20:05,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:20:05,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 155 [2019-10-14 23:20:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:05,823 INFO L225 Difference]: With dead ends: 657 [2019-10-14 23:20:05,824 INFO L226 Difference]: Without dead ends: 620 [2019-10-14 23:20:05,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:20:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-14 23:20:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2019-10-14 23:20:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-14 23:20:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 990 transitions. [2019-10-14 23:20:05,951 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 990 transitions. Word has length 155 [2019-10-14 23:20:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:05,954 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 990 transitions. [2019-10-14 23:20:05,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:20:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 990 transitions. [2019-10-14 23:20:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-14 23:20:05,965 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:05,966 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:06,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:06,176 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:06,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1914277300, now seen corresponding path program 1 times [2019-10-14 23:20:06,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:06,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403608360] [2019-10-14 23:20:06,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:06,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:06,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,270 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,583 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,763 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:08,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403608360] [2019-10-14 23:20:08,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362182261] [2019-10-14 23:20:08,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:08,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:20:08,832 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:08,832 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:08,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576036225] [2019-10-14 23:20:08,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:08,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:08,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:08,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:08,835 INFO L87 Difference]: Start difference. First operand 620 states and 990 transitions. Second operand 4 states. [2019-10-14 23:20:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:08,937 INFO L93 Difference]: Finished difference Result 1212 states and 1953 transitions. [2019-10-14 23:20:08,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:08,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2019-10-14 23:20:08,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:08,943 INFO L225 Difference]: With dead ends: 1212 [2019-10-14 23:20:08,943 INFO L226 Difference]: Without dead ends: 620 [2019-10-14 23:20:08,952 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-14 23:20:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2019-10-14 23:20:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-14 23:20:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 989 transitions. [2019-10-14 23:20:08,995 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 989 transitions. Word has length 157 [2019-10-14 23:20:08,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:08,996 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 989 transitions. [2019-10-14 23:20:08,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 989 transitions. [2019-10-14 23:20:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-14 23:20:09,004 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:09,005 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:09,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:09,215 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:09,216 INFO L82 PathProgramCache]: Analyzing trace with hash 511513774, now seen corresponding path program 1 times [2019-10-14 23:20:09,216 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:09,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664266188] [2019-10-14 23:20:09,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:09,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:09,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,250 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,504 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,708 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:11,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664266188] [2019-10-14 23:20:11,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500013153] [2019-10-14 23:20:11,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:11,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:20:11,706 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:11,706 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:11,706 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939993715] [2019-10-14 23:20:11,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:11,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:11,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:11,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:11,708 INFO L87 Difference]: Start difference. First operand 620 states and 989 transitions. Second operand 4 states. [2019-10-14 23:20:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:11,830 INFO L93 Difference]: Finished difference Result 1212 states and 1951 transitions. [2019-10-14 23:20:11,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:11,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-10-14 23:20:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:11,837 INFO L225 Difference]: With dead ends: 1212 [2019-10-14 23:20:11,837 INFO L226 Difference]: Without dead ends: 620 [2019-10-14 23:20:11,840 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-14 23:20:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2019-10-14 23:20:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-14 23:20:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 988 transitions. [2019-10-14 23:20:11,871 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 988 transitions. Word has length 159 [2019-10-14 23:20:11,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:11,871 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 988 transitions. [2019-10-14 23:20:11,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:11,872 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 988 transitions. [2019-10-14 23:20:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-14 23:20:11,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:11,877 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:12,085 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:12,086 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:12,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:12,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1781427860, now seen corresponding path program 1 times [2019-10-14 23:20:12,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:12,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602359742] [2019-10-14 23:20:12,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:12,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:12,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,106 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,350 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,510 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:13,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602359742] [2019-10-14 23:20:13,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308952091] [2019-10-14 23:20:13,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:14,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:20:14,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:14,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:14,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125293863] [2019-10-14 23:20:14,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:14,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:14,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:14,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:14,691 INFO L87 Difference]: Start difference. First operand 620 states and 988 transitions. Second operand 4 states. [2019-10-14 23:20:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:14,786 INFO L93 Difference]: Finished difference Result 1219 states and 1958 transitions. [2019-10-14 23:20:14,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:14,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2019-10-14 23:20:14,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:14,798 INFO L225 Difference]: With dead ends: 1219 [2019-10-14 23:20:14,798 INFO L226 Difference]: Without dead ends: 629 [2019-10-14 23:20:14,802 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-14 23:20:14,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-14 23:20:14,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-14 23:20:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1000 transitions. [2019-10-14 23:20:14,840 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1000 transitions. Word has length 161 [2019-10-14 23:20:14,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:14,842 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 1000 transitions. [2019-10-14 23:20:14,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:14,842 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1000 transitions. [2019-10-14 23:20:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-14 23:20:14,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:14,852 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:15,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:15,069 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:15,070 INFO L82 PathProgramCache]: Analyzing trace with hash -831391142, now seen corresponding path program 1 times [2019-10-14 23:20:15,070 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:15,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222391252] [2019-10-14 23:20:15,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:15,071 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:15,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,989 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,219 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,390 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:16,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222391252] [2019-10-14 23:20:16,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757826658] [2019-10-14 23:20:16,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:17,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 3281 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:17,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:20:17,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:17,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:17,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522168769] [2019-10-14 23:20:17,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:17,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:17,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:17,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:17,666 INFO L87 Difference]: Start difference. First operand 629 states and 1000 transitions. Second operand 4 states. [2019-10-14 23:20:17,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:17,799 INFO L93 Difference]: Finished difference Result 1221 states and 1959 transitions. [2019-10-14 23:20:17,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:17,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 162 [2019-10-14 23:20:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:17,816 INFO L225 Difference]: With dead ends: 1221 [2019-10-14 23:20:17,817 INFO L226 Difference]: Without dead ends: 629 [2019-10-14 23:20:17,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-14 23:20:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-14 23:20:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-14 23:20:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 999 transitions. [2019-10-14 23:20:17,867 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 999 transitions. Word has length 162 [2019-10-14 23:20:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:17,869 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 999 transitions. [2019-10-14 23:20:17,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 999 transitions. [2019-10-14 23:20:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-14 23:20:17,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:17,879 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:18,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:18,089 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:18,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1680400040, now seen corresponding path program 1 times [2019-10-14 23:20:18,091 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:18,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417985095] [2019-10-14 23:20:18,091 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:18,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:18,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,078 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,393 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,551 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:19,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417985095] [2019-10-14 23:20:19,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640860357] [2019-10-14 23:20:19,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:20,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 3282 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:20,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:20:20,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:20,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:20,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002765854] [2019-10-14 23:20:20,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:20,609 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:20,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:20,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:20,610 INFO L87 Difference]: Start difference. First operand 629 states and 999 transitions. Second operand 4 states. [2019-10-14 23:20:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:20,685 INFO L93 Difference]: Finished difference Result 1221 states and 1958 transitions. [2019-10-14 23:20:20,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:20,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2019-10-14 23:20:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:20,691 INFO L225 Difference]: With dead ends: 1221 [2019-10-14 23:20:20,692 INFO L226 Difference]: Without dead ends: 629 [2019-10-14 23:20:20,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-14 23:20:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-14 23:20:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-14 23:20:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 998 transitions. [2019-10-14 23:20:20,717 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 998 transitions. Word has length 163 [2019-10-14 23:20:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:20,718 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 998 transitions. [2019-10-14 23:20:20,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 998 transitions. [2019-10-14 23:20:20,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-14 23:20:20,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:20,724 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:20,932 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:20,933 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:20,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1066972054, now seen corresponding path program 1 times [2019-10-14 23:20:20,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:20,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130146455] [2019-10-14 23:20:20,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:20,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:20,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,886 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,240 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,417 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:20:22,754 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130146455] [2019-10-14 23:20:22,754 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552745029] [2019-10-14 23:20:22,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:23,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 3283 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:20:23,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:20:23,454 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:23,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2019-10-14 23:20:23,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339088080] [2019-10-14 23:20:23,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:20:23,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:23,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:20:23,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:20:23,460 INFO L87 Difference]: Start difference. First operand 629 states and 998 transitions. Second operand 7 states. [2019-10-14 23:20:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:23,674 INFO L93 Difference]: Finished difference Result 1228 states and 1967 transitions. [2019-10-14 23:20:23,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:20:23,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2019-10-14 23:20:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:23,683 INFO L225 Difference]: With dead ends: 1228 [2019-10-14 23:20:23,684 INFO L226 Difference]: Without dead ends: 640 [2019-10-14 23:20:23,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:20:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-14 23:20:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 636. [2019-10-14 23:20:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2019-10-14 23:20:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1008 transitions. [2019-10-14 23:20:23,733 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1008 transitions. Word has length 164 [2019-10-14 23:20:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:23,734 INFO L462 AbstractCegarLoop]: Abstraction has 636 states and 1008 transitions. [2019-10-14 23:20:23,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:20:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1008 transitions. [2019-10-14 23:20:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-14 23:20:23,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:23,744 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:24,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:24,041 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:24,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:24,042 INFO L82 PathProgramCache]: Analyzing trace with hash -146369345, now seen corresponding path program 1 times [2019-10-14 23:20:24,042 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:24,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531355511] [2019-10-14 23:20:24,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:24,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:24,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,170 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,399 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,585 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-14 23:20:25,983 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531355511] [2019-10-14 23:20:25,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414184687] [2019-10-14 23:20:25,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:26,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 3284 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:26,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:20:26,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:26,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2019-10-14 23:20:26,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088460802] [2019-10-14 23:20:26,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:26,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:26,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:26,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:20:26,672 INFO L87 Difference]: Start difference. First operand 636 states and 1008 transitions. Second operand 4 states. [2019-10-14 23:20:26,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:26,853 INFO L93 Difference]: Finished difference Result 1233 states and 1978 transitions. [2019-10-14 23:20:26,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:26,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2019-10-14 23:20:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:26,859 INFO L225 Difference]: With dead ends: 1233 [2019-10-14 23:20:26,860 INFO L226 Difference]: Without dead ends: 636 [2019-10-14 23:20:26,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:20:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2019-10-14 23:20:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2019-10-14 23:20:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2019-10-14 23:20:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1003 transitions. [2019-10-14 23:20:26,895 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1003 transitions. Word has length 165 [2019-10-14 23:20:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:26,897 INFO L462 AbstractCegarLoop]: Abstraction has 636 states and 1003 transitions. [2019-10-14 23:20:26,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1003 transitions. [2019-10-14 23:20:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-14 23:20:26,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:26,904 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:27,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:27,115 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:27,116 INFO L82 PathProgramCache]: Analyzing trace with hash -893831295, now seen corresponding path program 1 times [2019-10-14 23:20:27,116 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:27,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599101350] [2019-10-14 23:20:27,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:27,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:27,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,026 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,261 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,428 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-14 23:20:28,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599101350] [2019-10-14 23:20:28,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407600568] [2019-10-14 23:20:28,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:29,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 3286 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:29,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:20:29,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:29,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2019-10-14 23:20:29,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835062783] [2019-10-14 23:20:29,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:29,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:29,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:29,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:20:29,517 INFO L87 Difference]: Start difference. First operand 636 states and 1003 transitions. Second operand 4 states. [2019-10-14 23:20:29,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:29,716 INFO L93 Difference]: Finished difference Result 1233 states and 1968 transitions. [2019-10-14 23:20:29,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:29,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2019-10-14 23:20:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:29,724 INFO L225 Difference]: With dead ends: 1233 [2019-10-14 23:20:29,725 INFO L226 Difference]: Without dead ends: 636 [2019-10-14 23:20:29,729 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:20:29,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2019-10-14 23:20:29,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2019-10-14 23:20:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2019-10-14 23:20:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 998 transitions. [2019-10-14 23:20:29,771 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 998 transitions. Word has length 167 [2019-10-14 23:20:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:29,773 INFO L462 AbstractCegarLoop]: Abstraction has 636 states and 998 transitions. [2019-10-14 23:20:29,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 998 transitions. [2019-10-14 23:20:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-14 23:20:29,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:29,782 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:29,993 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:29,994 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:29,994 INFO L82 PathProgramCache]: Analyzing trace with hash 241086921, now seen corresponding path program 1 times [2019-10-14 23:20:29,994 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:29,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585935738] [2019-10-14 23:20:29,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:29,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:29,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,911 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,151 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,391 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat