/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:30:08,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:30:08,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:30:08,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:30:08,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:30:08,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:30:08,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:30:08,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:30:08,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:30:08,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:30:08,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:30:08,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:30:08,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:30:08,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:30:08,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:30:08,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:30:08,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:30:08,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:30:08,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:30:08,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:30:08,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:30:08,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:30:08,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:30:08,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:30:08,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:30:08,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:30:08,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:30:08,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:30:08,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:30:08,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:30:08,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:30:08,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:30:08,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:30:08,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:30:08,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:30:08,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:30:08,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:30:08,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:30:08,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:30:08,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:30:08,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:30:08,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:30:08,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:30:08,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:30:08,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:30:08,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:30:08,326 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:30:08,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:30:08,327 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:30:08,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:30:08,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:30:08,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:30:08,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:30:08,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:30:08,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:30:08,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:30:08,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:30:08,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:30:08,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:30:08,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:30:08,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:30:08,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:30:08,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:30:08,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:30:08,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:30:08,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:30:08,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:30:08,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:30:08,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:30:08,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:30:08,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:30:08,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:30:08,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:30:08,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:30:08,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:30:08,633 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:30:08,634 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2019-11-06 21:30:08,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3815d5a65/c50bb5fea7d64a528f1a6b3f492600d7/FLAGcdad75034 [2019-11-06 21:30:09,337 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:30:09,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2019-11-06 21:30:09,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3815d5a65/c50bb5fea7d64a528f1a6b3f492600d7/FLAGcdad75034 [2019-11-06 21:30:09,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3815d5a65/c50bb5fea7d64a528f1a6b3f492600d7 [2019-11-06 21:30:09,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:30:09,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:30:09,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:30:09,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:30:09,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:30:09,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:30:09" (1/1) ... [2019-11-06 21:30:09,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb56b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:09, skipping insertion in model container [2019-11-06 21:30:09,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:30:09" (1/1) ... [2019-11-06 21:30:09,546 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:30:09,634 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:30:10,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:30:10,431 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:30:10,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:30:10,616 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:30:10,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10 WrapperNode [2019-11-06 21:30:10,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:30:10,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:30:10,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:30:10,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:30:10,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... [2019-11-06 21:30:10,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:30:10,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:30:10,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:30:10,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:30:10,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:30:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:30:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:30:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:30:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:30:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:30:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:30:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:30:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:30:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:30:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:30:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:30:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:30:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:30:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-06 21:30:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-06 21:30:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:30:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-06 21:30:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-06 21:30:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-06 21:30:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-06 21:30:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-06 21:30:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-06 21:30:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-06 21:30:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-06 21:30:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-06 21:30:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-06 21:30:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-06 21:30:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-06 21:30:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-06 21:30:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-06 21:30:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-11-06 21:30:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-06 21:30:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-06 21:30:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-06 21:30:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-06 21:30:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-11-06 21:30:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-06 21:30:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-06 21:30:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-06 21:30:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-06 21:30:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-06 21:30:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-06 21:30:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-06 21:30:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-06 21:30:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-06 21:30:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-06 21:30:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-06 21:30:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:30:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-06 21:30:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-06 21:30:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-06 21:30:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:30:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-06 21:30:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:30:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:30:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:30:10,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:30:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:30:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:30:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:30:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:30:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:30:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:30:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:30:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:30:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:30:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:30:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:30:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:30:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:30:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:30:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:30:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:30:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:30:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:30:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:30:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:30:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:30:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:30:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-06 21:30:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-06 21:30:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:30:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-06 21:30:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-06 21:30:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-06 21:30:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-06 21:30:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-06 21:30:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-06 21:30:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-06 21:30:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-06 21:30:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:30:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:30:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:30:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-06 21:30:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-06 21:30:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-06 21:30:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-06 21:30:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-06 21:30:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-06 21:30:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-06 21:30:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-06 21:30:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-06 21:30:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-06 21:30:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-06 21:30:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-11-06 21:30:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-06 21:30:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-06 21:30:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-11-06 21:30:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-06 21:30:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-06 21:30:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-11-06 21:30:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-06 21:30:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-06 21:30:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:30:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:30:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:30:13,347 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:30:13,348 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-06 21:30:13,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:30:13 BoogieIcfgContainer [2019-11-06 21:30:13,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:30:13,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:30:13,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:30:13,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:30:13,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:30:09" (1/3) ... [2019-11-06 21:30:13,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8b1055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:30:13, skipping insertion in model container [2019-11-06 21:30:13,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:30:10" (2/3) ... [2019-11-06 21:30:13,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8b1055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:30:13, skipping insertion in model container [2019-11-06 21:30:13,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:30:13" (3/3) ... [2019-11-06 21:30:13,360 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product03.cil.c [2019-11-06 21:30:13,370 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:30:13,380 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:30:13,391 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:30:13,433 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:30:13,434 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:30:13,434 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:30:13,434 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:30:13,434 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:30:13,434 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:30:13,434 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:30:13,435 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:30:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states. [2019-11-06 21:30:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-06 21:30:13,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:13,509 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2019-11-06 21:30:13,512 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:13,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1215975064, now seen corresponding path program 1 times [2019-11-06 21:30:13,527 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:13,527 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482434658] [2019-11-06 21:30:13,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,174 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,431 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,673 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:16,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482434658] [2019-11-06 21:30:16,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390905547] [2019-11-06 21:30:16,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:16,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 3256 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-06 21:30:16,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-06 21:30:16,858 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:16,858 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2019-11-06 21:30:16,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256312093] [2019-11-06 21:30:16,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 21:30:16,865 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:16,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 21:30:16,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:30:16,882 INFO L87 Difference]: Start difference. First operand 750 states. Second operand 2 states. [2019-11-06 21:30:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:16,969 INFO L93 Difference]: Finished difference Result 633 states and 1010 transitions. [2019-11-06 21:30:16,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 21:30:16,971 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 164 [2019-11-06 21:30:16,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:17,016 INFO L225 Difference]: With dead ends: 633 [2019-11-06 21:30:17,017 INFO L226 Difference]: Without dead ends: 596 [2019-11-06 21:30:17,026 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:30:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-11-06 21:30:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-11-06 21:30:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-11-06 21:30:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 955 transitions. [2019-11-06 21:30:17,196 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 955 transitions. Word has length 164 [2019-11-06 21:30:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:17,198 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 955 transitions. [2019-11-06 21:30:17,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 21:30:17,199 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 955 transitions. [2019-11-06 21:30:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-06 21:30:17,206 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:17,206 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2019-11-06 21:30:17,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:17,415 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:17,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1543512037, now seen corresponding path program 1 times [2019-11-06 21:30:17,416 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:17,417 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098912442] [2019-11-06 21:30:17,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,505 WARN L191 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,791 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:18,996 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:19,474 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098912442] [2019-11-06 21:30:19,474 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181986646] [2019-11-06 21:30:19,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:20,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 3259 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:20,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:20,100 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-06 21:30:20,100 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:20,101 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2019-11-06 21:30:20,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979773747] [2019-11-06 21:30:20,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 21:30:20,102 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:20,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 21:30:20,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:30:20,103 INFO L87 Difference]: Start difference. First operand 596 states and 955 transitions. Second operand 3 states. [2019-11-06 21:30:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:20,263 INFO L93 Difference]: Finished difference Result 1565 states and 2548 transitions. [2019-11-06 21:30:20,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:30:20,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-11-06 21:30:20,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:20,284 INFO L225 Difference]: With dead ends: 1565 [2019-11-06 21:30:20,284 INFO L226 Difference]: Without dead ends: 1078 [2019-11-06 21:30:20,296 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:30:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2019-11-06 21:30:20,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1056. [2019-11-06 21:30:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-11-06 21:30:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1715 transitions. [2019-11-06 21:30:20,410 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1715 transitions. Word has length 166 [2019-11-06 21:30:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:20,412 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1715 transitions. [2019-11-06 21:30:20,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 21:30:20,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1715 transitions. [2019-11-06 21:30:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-06 21:30:20,421 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:20,421 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2019-11-06 21:30:20,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:20,628 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:20,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:20,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2049855385, now seen corresponding path program 1 times [2019-11-06 21:30:20,629 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:20,629 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352798741] [2019-11-06 21:30:20,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,686 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:21,941 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,110 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:22,572 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352798741] [2019-11-06 21:30:22,573 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021959458] [2019-11-06 21:30:22,573 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 [2019-11-06 21:30:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:23,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 3260 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:23,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-06 21:30:23,212 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:23,213 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-11-06 21:30:23,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252586833] [2019-11-06 21:30:23,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:23,214 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:23,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:30:23,215 INFO L87 Difference]: Start difference. First operand 1056 states and 1715 transitions. Second operand 4 states. [2019-11-06 21:30:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:23,317 INFO L93 Difference]: Finished difference Result 2084 states and 3403 transitions. [2019-11-06 21:30:23,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:30:23,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2019-11-06 21:30:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:23,328 INFO L225 Difference]: With dead ends: 2084 [2019-11-06 21:30:23,329 INFO L226 Difference]: Without dead ends: 1056 [2019-11-06 21:30:23,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:30:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2019-11-06 21:30:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2019-11-06 21:30:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-11-06 21:30:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1714 transitions. [2019-11-06 21:30:23,391 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1714 transitions. Word has length 166 [2019-11-06 21:30:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:23,391 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1714 transitions. [2019-11-06 21:30:23,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1714 transitions. [2019-11-06 21:30:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-11-06 21:30:23,397 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:23,397 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:23,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:23,612 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:23,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1271242485, now seen corresponding path program 1 times [2019-11-06 21:30:23,613 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:23,613 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494530429] [2019-11-06 21:30:23,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,593 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:24,834 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,003 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:25,413 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494530429] [2019-11-06 21:30:25,413 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418717932] [2019-11-06 21:30:25,413 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 [2019-11-06 21:30:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:26,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 3262 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:26,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:26,119 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-06 21:30:26,120 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:26,120 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-11-06 21:30:26,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272641151] [2019-11-06 21:30:26,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:26,122 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:26,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:26,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:30:26,123 INFO L87 Difference]: Start difference. First operand 1056 states and 1714 transitions. Second operand 4 states. [2019-11-06 21:30:26,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:26,223 INFO L93 Difference]: Finished difference Result 2084 states and 3401 transitions. [2019-11-06 21:30:26,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:30:26,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2019-11-06 21:30:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:26,233 INFO L225 Difference]: With dead ends: 2084 [2019-11-06 21:30:26,233 INFO L226 Difference]: Without dead ends: 1056 [2019-11-06 21:30:26,238 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:30:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2019-11-06 21:30:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2019-11-06 21:30:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-11-06 21:30:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1713 transitions. [2019-11-06 21:30:26,289 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1713 transitions. Word has length 168 [2019-11-06 21:30:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:26,289 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1713 transitions. [2019-11-06 21:30:26,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1713 transitions. [2019-11-06 21:30:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-11-06 21:30:26,295 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:26,295 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:26,512 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:26,512 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash -618683487, now seen corresponding path program 1 times [2019-11-06 21:30:26,513 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:26,513 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050930039] [2019-11-06 21:30:26,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,385 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,668 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,896 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:28,399 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050930039] [2019-11-06 21:30:28,400 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854908919] [2019-11-06 21:30:28,400 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 [2019-11-06 21:30:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:28,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 3264 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:28,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-06 21:30:28,978 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:28,978 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-11-06 21:30:28,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931064890] [2019-11-06 21:30:28,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:28,979 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:28,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:28,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:30:28,980 INFO L87 Difference]: Start difference. First operand 1056 states and 1713 transitions. Second operand 4 states. [2019-11-06 21:30:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:29,072 INFO L93 Difference]: Finished difference Result 2091 states and 3408 transitions. [2019-11-06 21:30:29,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:30:29,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2019-11-06 21:30:29,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:29,082 INFO L225 Difference]: With dead ends: 2091 [2019-11-06 21:30:29,082 INFO L226 Difference]: Without dead ends: 1065 [2019-11-06 21:30:29,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:30:29,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2019-11-06 21:30:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2019-11-06 21:30:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-11-06 21:30:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1725 transitions. [2019-11-06 21:30:29,131 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1725 transitions. Word has length 170 [2019-11-06 21:30:29,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:29,132 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1725 transitions. [2019-11-06 21:30:29,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:29,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1725 transitions. [2019-11-06 21:30:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-06 21:30:29,137 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:29,137 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:29,345 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:29,345 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:29,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1482424208, now seen corresponding path program 1 times [2019-11-06 21:30:29,345 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:29,346 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293876979] [2019-11-06 21:30:29,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,247 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,510 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,667 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:31,070 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293876979] [2019-11-06 21:30:31,070 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896641224] [2019-11-06 21:30:31,070 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 [2019-11-06 21:30:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:31,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:31,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-06 21:30:31,726 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:31,726 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-11-06 21:30:31,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199541345] [2019-11-06 21:30:31,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:31,727 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:31,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:31,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:30:31,728 INFO L87 Difference]: Start difference. First operand 1065 states and 1725 transitions. Second operand 4 states. [2019-11-06 21:30:31,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:31,831 INFO L93 Difference]: Finished difference Result 2093 states and 3409 transitions. [2019-11-06 21:30:31,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:30:31,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2019-11-06 21:30:31,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:31,845 INFO L225 Difference]: With dead ends: 2093 [2019-11-06 21:30:31,845 INFO L226 Difference]: Without dead ends: 1065 [2019-11-06 21:30:31,853 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:30:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2019-11-06 21:30:31,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2019-11-06 21:30:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-11-06 21:30:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1724 transitions. [2019-11-06 21:30:31,904 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1724 transitions. Word has length 171 [2019-11-06 21:30:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:31,904 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1724 transitions. [2019-11-06 21:30:31,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1724 transitions. [2019-11-06 21:30:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-06 21:30:31,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:31,910 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:32,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:32,118 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:32,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:32,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1945680261, now seen corresponding path program 1 times [2019-11-06 21:30:32,119 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:32,119 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214924368] [2019-11-06 21:30:32,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,222 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,452 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,596 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 21:30:34,015 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214924368] [2019-11-06 21:30:34,015 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844153928] [2019-11-06 21:30:34,015 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 [2019-11-06 21:30:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:34,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:34,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-06 21:30:34,654 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:34,655 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-11-06 21:30:34,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338504707] [2019-11-06 21:30:34,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:34,656 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:34,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:34,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:30:34,656 INFO L87 Difference]: Start difference. First operand 1065 states and 1724 transitions. Second operand 4 states. [2019-11-06 21:30:34,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:34,756 INFO L93 Difference]: Finished difference Result 2093 states and 3408 transitions. [2019-11-06 21:30:34,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:30:34,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 172 [2019-11-06 21:30:34,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:34,765 INFO L225 Difference]: With dead ends: 2093 [2019-11-06 21:30:34,765 INFO L226 Difference]: Without dead ends: 1065 [2019-11-06 21:30:34,771 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:30:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2019-11-06 21:30:34,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2019-11-06 21:30:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-11-06 21:30:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1723 transitions. [2019-11-06 21:30:34,809 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1723 transitions. Word has length 172 [2019-11-06 21:30:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:34,809 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1723 transitions. [2019-11-06 21:30:34,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1723 transitions. [2019-11-06 21:30:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-11-06 21:30:34,815 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:34,815 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:35,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:35,023 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:35,023 INFO L82 PathProgramCache]: Analyzing trace with hash 982032148, now seen corresponding path program 1 times [2019-11-06 21:30:35,024 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:35,025 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001665291] [2019-11-06 21:30:35,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,001 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,283 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,445 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-06 21:30:36,844 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001665291] [2019-11-06 21:30:36,845 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727458352] [2019-11-06 21:30:36,845 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 [2019-11-06 21:30:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:37,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:37,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-06 21:30:37,504 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:37,504 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:30:37,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531909914] [2019-11-06 21:30:37,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:37,507 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:37,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:37,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:30:37,508 INFO L87 Difference]: Start difference. First operand 1065 states and 1723 transitions. Second operand 4 states. [2019-11-06 21:30:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:37,673 INFO L93 Difference]: Finished difference Result 2092 states and 3408 transitions. [2019-11-06 21:30:37,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:30:37,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2019-11-06 21:30:37,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:37,682 INFO L225 Difference]: With dead ends: 2092 [2019-11-06 21:30:37,682 INFO L226 Difference]: Without dead ends: 1065 [2019-11-06 21:30:37,687 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:30:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2019-11-06 21:30:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2019-11-06 21:30:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-11-06 21:30:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1718 transitions. [2019-11-06 21:30:37,729 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1718 transitions. Word has length 173 [2019-11-06 21:30:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:37,729 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1718 transitions. [2019-11-06 21:30:37,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1718 transitions. [2019-11-06 21:30:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-11-06 21:30:37,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:37,736 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:37,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:37,944 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:37,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1458586870, now seen corresponding path program 1 times [2019-11-06 21:30:37,944 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:37,944 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784290628] [2019-11-06 21:30:37,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,003 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-11-06 21:30:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,265 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-11-06 21:30:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,509 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:30:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-06 21:30:39,881 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784290628] [2019-11-06 21:30:39,882 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244826441] [2019-11-06 21:30:39,882 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 [2019-11-06 21:30:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:30:40,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 3269 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:30:40,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:30:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-06 21:30:40,513 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:30:40,514 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:30:40,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600083305] [2019-11-06 21:30:40,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:30:40,515 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:30:40,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:30:40,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:30:40,515 INFO L87 Difference]: Start difference. First operand 1065 states and 1718 transitions. Second operand 4 states. [2019-11-06 21:30:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:30:40,717 INFO L93 Difference]: Finished difference Result 2092 states and 3398 transitions. [2019-11-06 21:30:40,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:30:40,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2019-11-06 21:30:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:30:40,725 INFO L225 Difference]: With dead ends: 2092 [2019-11-06 21:30:40,725 INFO L226 Difference]: Without dead ends: 1065 [2019-11-06 21:30:40,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:30:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2019-11-06 21:30:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2019-11-06 21:30:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-11-06 21:30:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1713 transitions. [2019-11-06 21:30:40,771 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1713 transitions. Word has length 175 [2019-11-06 21:30:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:30:40,771 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1713 transitions. [2019-11-06 21:30:40,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:30:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1713 transitions. [2019-11-06 21:30:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-11-06 21:30:40,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:30:40,776 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 21:30:40,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:30:40,983 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:30:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:30:40,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1544496906, now seen corresponding path program 1 times [2019-11-06 21:30:40,983 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:30:40,984 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214422031] [2019-11-06 21:30:40,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:30:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat