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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:10:00,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:10:00,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:10:00,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:10:00,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:10:00,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:10:00,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:10:00,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:10:00,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:10:00,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:10:00,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:10:00,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:10:00,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:10:00,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:10:00,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:10:00,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:10:00,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:10:00,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:10:00,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:10:00,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:10:00,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:10:00,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:10:00,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:10:00,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:10:00,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:10:00,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:10:00,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:10:00,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:10:00,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:10:00,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:10:00,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:10:00,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:10:00,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:10:00,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:10:00,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:10:00,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:10:00,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:10:00,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:10:00,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:10:00,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:10:00,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:10:00,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:10:00,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:10:00,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:10:00,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:10:00,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:10:00,999 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:10:00,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:10:00,999 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:10:01,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:10:01,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:10:01,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:10:01,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:10:01,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:10:01,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:10:01,001 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:10:01,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:10:01,001 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:10:01,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:10:01,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:10:01,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:10:01,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:10:01,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:10:01,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:10:01,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:10:01,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:10:01,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:10:01,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:10:01,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:10:01,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:10:01,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:10:01,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:10:01,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:10:01,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:10:01,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:10:01,287 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:10:01,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2019-10-15 01:10:01,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18191b0c6/c1dc956168634108873706e3ca4fdaac/FLAG7ad6ad9ec [2019-10-15 01:10:02,008 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:10:02,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2019-10-15 01:10:02,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18191b0c6/c1dc956168634108873706e3ca4fdaac/FLAG7ad6ad9ec [2019-10-15 01:10:02,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18191b0c6/c1dc956168634108873706e3ca4fdaac [2019-10-15 01:10:02,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:10:02,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:10:02,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:10:02,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:10:02,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:10:02,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:10:02" (1/1) ... [2019-10-15 01:10:02,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52986215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:02, skipping insertion in model container [2019-10-15 01:10:02,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:10:02" (1/1) ... [2019-10-15 01:10:02,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:10:02,312 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:10:03,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:10:03,036 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:10:03,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:10:03,249 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:10:03,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03 WrapperNode [2019-10-15 01:10:03,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:10:03,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:10:03,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:10:03,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:10:03,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... [2019-10-15 01:10:03,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:10:03,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:10:03,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:10:03,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:10:03,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:10:03,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:10:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:10:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:10:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 01:10:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 01:10:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 01:10:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 01:10:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 01:10:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 01:10:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-15 01:10:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 01:10:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 01:10:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 01:10:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 01:10:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 01:10:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 01:10:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 01:10:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 01:10:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 01:10:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 01:10:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 01:10:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 01:10:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 01:10:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 01:10:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 01:10:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 01:10:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 01:10:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 01:10:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-15 01:10:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 01:10:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-15 01:10:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 01:10:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 01:10:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 01:10:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:10:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 01:10:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 01:10:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 01:10:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 01:10:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 01:10:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 01:10:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 01:10:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 01:10:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 01:10:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 01:10:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 01:10:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 01:10:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 01:10:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 01:10:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 01:10:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 01:10:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:10:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 01:10:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:10:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:10:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:10:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:10:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 01:10:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 01:10:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-15 01:10:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-15 01:10:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:10:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:10:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:10:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 01:10:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 01:10:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 01:10:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 01:10:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 01:10:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 01:10:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 01:10:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 01:10:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-15 01:10:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:10:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:10:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 01:10:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:10:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:10:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:10:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 01:10:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 01:10:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:10:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:10:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:10:05,659 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:10:05,659 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 01:10:05,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:10:05 BoogieIcfgContainer [2019-10-15 01:10:05,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:10:05,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:10:05,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:10:05,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:10:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:10:02" (1/3) ... [2019-10-15 01:10:05,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d6cec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:10:05, skipping insertion in model container [2019-10-15 01:10:05,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:10:03" (2/3) ... [2019-10-15 01:10:05,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d6cec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:10:05, skipping insertion in model container [2019-10-15 01:10:05,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:10:05" (3/3) ... [2019-10-15 01:10:05,671 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product28.cil.c [2019-10-15 01:10:05,682 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:10:05,691 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:10:05,702 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:10:05,742 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:10:05,742 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:10:05,742 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:10:05,742 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:10:05,742 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:10:05,743 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:10:05,743 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:10:05,743 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:10:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states. [2019-10-15 01:10:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-15 01:10:05,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:05,804 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:05,807 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:05,814 INFO L82 PathProgramCache]: Analyzing trace with hash -247911758, now seen corresponding path program 1 times [2019-10-15 01:10:05,823 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:05,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365750673] [2019-10-15 01:10:05,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:05,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:05,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:06,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365750673] [2019-10-15 01:10:06,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:06,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:06,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355963159] [2019-10-15 01:10:06,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:06,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:06,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:06,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:06,445 INFO L87 Difference]: Start difference. First operand 802 states. Second operand 4 states. [2019-10-15 01:10:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:06,652 INFO L93 Difference]: Finished difference Result 1253 states and 2015 transitions. [2019-10-15 01:10:06,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:06,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2019-10-15 01:10:06,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:06,678 INFO L225 Difference]: With dead ends: 1253 [2019-10-15 01:10:06,679 INFO L226 Difference]: Without dead ends: 635 [2019-10-15 01:10:06,691 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-15 01:10:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-15 01:10:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-15 01:10:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1009 transitions. [2019-10-15 01:10:06,798 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1009 transitions. Word has length 85 [2019-10-15 01:10:06,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:06,798 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1009 transitions. [2019-10-15 01:10:06,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1009 transitions. [2019-10-15 01:10:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 01:10:06,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:06,813 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:06,813 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:06,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1599117105, now seen corresponding path program 1 times [2019-10-15 01:10:06,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:06,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125164282] [2019-10-15 01:10:06,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:06,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:06,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:06,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:06,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125164282] [2019-10-15 01:10:06,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:06,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:06,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082622858] [2019-10-15 01:10:07,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:07,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:07,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:07,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:07,004 INFO L87 Difference]: Start difference. First operand 635 states and 1009 transitions. Second operand 4 states. [2019-10-15 01:10:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:07,078 INFO L93 Difference]: Finished difference Result 1233 states and 1976 transitions. [2019-10-15 01:10:07,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:07,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-10-15 01:10:07,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:07,090 INFO L225 Difference]: With dead ends: 1233 [2019-10-15 01:10:07,090 INFO L226 Difference]: Without dead ends: 635 [2019-10-15 01:10:07,099 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-15 01:10:07,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-15 01:10:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-15 01:10:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1008 transitions. [2019-10-15 01:10:07,176 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1008 transitions. Word has length 88 [2019-10-15 01:10:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:07,177 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1008 transitions. [2019-10-15 01:10:07,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1008 transitions. [2019-10-15 01:10:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:10:07,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:07,184 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:07,184 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:07,185 INFO L82 PathProgramCache]: Analyzing trace with hash 246537377, now seen corresponding path program 1 times [2019-10-15 01:10:07,185 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:07,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135959025] [2019-10-15 01:10:07,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:07,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135959025] [2019-10-15 01:10:07,453 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:07,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:07,454 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206671386] [2019-10-15 01:10:07,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:07,457 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:07,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:07,458 INFO L87 Difference]: Start difference. First operand 635 states and 1008 transitions. Second operand 4 states. [2019-10-15 01:10:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:07,527 INFO L93 Difference]: Finished difference Result 1233 states and 1975 transitions. [2019-10-15 01:10:07,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:07,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-10-15 01:10:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:07,536 INFO L225 Difference]: With dead ends: 1233 [2019-10-15 01:10:07,536 INFO L226 Difference]: Without dead ends: 635 [2019-10-15 01:10:07,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-15 01:10:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-15 01:10:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-15 01:10:07,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1007 transitions. [2019-10-15 01:10:07,579 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1007 transitions. Word has length 89 [2019-10-15 01:10:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:07,580 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1007 transitions. [2019-10-15 01:10:07,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1007 transitions. [2019-10-15 01:10:07,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-15 01:10:07,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:07,583 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:07,583 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:07,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1708600971, now seen corresponding path program 1 times [2019-10-15 01:10:07,583 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:07,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700176240] [2019-10-15 01:10:07,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:07,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700176240] [2019-10-15 01:10:07,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:07,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:07,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724638278] [2019-10-15 01:10:07,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:07,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:07,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:07,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:07,725 INFO L87 Difference]: Start difference. First operand 635 states and 1007 transitions. Second operand 4 states. [2019-10-15 01:10:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:07,788 INFO L93 Difference]: Finished difference Result 1233 states and 1974 transitions. [2019-10-15 01:10:07,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:07,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2019-10-15 01:10:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:07,796 INFO L225 Difference]: With dead ends: 1233 [2019-10-15 01:10:07,796 INFO L226 Difference]: Without dead ends: 635 [2019-10-15 01:10:07,799 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-15 01:10:07,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-15 01:10:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-15 01:10:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1006 transitions. [2019-10-15 01:10:07,828 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1006 transitions. Word has length 90 [2019-10-15 01:10:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:07,829 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1006 transitions. [2019-10-15 01:10:07,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1006 transitions. [2019-10-15 01:10:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-15 01:10:07,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:07,832 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:07,832 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:07,832 INFO L82 PathProgramCache]: Analyzing trace with hash -130718371, now seen corresponding path program 1 times [2019-10-15 01:10:07,833 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:07,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917005048] [2019-10-15 01:10:07,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:07,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:07,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917005048] [2019-10-15 01:10:07,959 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:07,959 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:07,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877678635] [2019-10-15 01:10:07,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:07,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:07,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:07,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:07,961 INFO L87 Difference]: Start difference. First operand 635 states and 1006 transitions. Second operand 4 states. [2019-10-15 01:10:08,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:08,020 INFO L93 Difference]: Finished difference Result 1233 states and 1973 transitions. [2019-10-15 01:10:08,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:08,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2019-10-15 01:10:08,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:08,027 INFO L225 Difference]: With dead ends: 1233 [2019-10-15 01:10:08,027 INFO L226 Difference]: Without dead ends: 635 [2019-10-15 01:10:08,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-15 01:10:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-15 01:10:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-15 01:10:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1005 transitions. [2019-10-15 01:10:08,063 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1005 transitions. Word has length 91 [2019-10-15 01:10:08,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:08,067 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1005 transitions. [2019-10-15 01:10:08,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1005 transitions. [2019-10-15 01:10:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 01:10:08,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:08,070 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:08,074 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:08,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:08,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1233693625, now seen corresponding path program 1 times [2019-10-15 01:10:08,075 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:08,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831968766] [2019-10-15 01:10:08,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:08,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831968766] [2019-10-15 01:10:08,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:08,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:10:08,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337256038] [2019-10-15 01:10:08,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:10:08,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:08,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:10:08,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:10:08,287 INFO L87 Difference]: Start difference. First operand 635 states and 1005 transitions. Second operand 10 states. [2019-10-15 01:10:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:08,440 INFO L93 Difference]: Finished difference Result 1191 states and 1893 transitions. [2019-10-15 01:10:08,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:10:08,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2019-10-15 01:10:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:08,447 INFO L225 Difference]: With dead ends: 1191 [2019-10-15 01:10:08,447 INFO L226 Difference]: Without dead ends: 644 [2019-10-15 01:10:08,451 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:10:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2019-10-15 01:10:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 642. [2019-10-15 01:10:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2019-10-15 01:10:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1014 transitions. [2019-10-15 01:10:08,483 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1014 transitions. Word has length 92 [2019-10-15 01:10:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:08,484 INFO L462 AbstractCegarLoop]: Abstraction has 642 states and 1014 transitions. [2019-10-15 01:10:08,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:10:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1014 transitions. [2019-10-15 01:10:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 01:10:08,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:08,488 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:08,488 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:08,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1213356250, now seen corresponding path program 1 times [2019-10-15 01:10:08,489 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:08,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161968801] [2019-10-15 01:10:08,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:08,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161968801] [2019-10-15 01:10:08,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:08,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:10:08,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214538205] [2019-10-15 01:10:08,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:10:08,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:08,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:10:08,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:10:08,602 INFO L87 Difference]: Start difference. First operand 642 states and 1014 transitions. Second operand 4 states. [2019-10-15 01:10:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:08,661 INFO L93 Difference]: Finished difference Result 1239 states and 1979 transitions. [2019-10-15 01:10:08,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:10:08,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-10-15 01:10:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:08,668 INFO L225 Difference]: With dead ends: 1239 [2019-10-15 01:10:08,668 INFO L226 Difference]: Without dead ends: 629 [2019-10-15 01:10:08,671 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:10:08,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-15 01:10:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-15 01:10:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-15 01:10:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 991 transitions. [2019-10-15 01:10:08,695 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 991 transitions. Word has length 92 [2019-10-15 01:10:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:08,695 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 991 transitions. [2019-10-15 01:10:08,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:10:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 991 transitions. [2019-10-15 01:10:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-15 01:10:08,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:08,698 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:08,698 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:08,699 INFO L82 PathProgramCache]: Analyzing trace with hash -753982501, now seen corresponding path program 1 times [2019-10-15 01:10:08,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:08,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198058357] [2019-10-15 01:10:08,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:08,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:08,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198058357] [2019-10-15 01:10:08,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:08,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:08,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618559803] [2019-10-15 01:10:08,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:08,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:08,885 INFO L87 Difference]: Start difference. First operand 629 states and 991 transitions. Second operand 6 states. [2019-10-15 01:10:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:09,096 INFO L93 Difference]: Finished difference Result 1179 states and 1871 transitions. [2019-10-15 01:10:09,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:09,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-10-15 01:10:09,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:09,101 INFO L225 Difference]: With dead ends: 1179 [2019-10-15 01:10:09,102 INFO L226 Difference]: Without dead ends: 629 [2019-10-15 01:10:09,105 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:09,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-15 01:10:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-15 01:10:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-15 01:10:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 987 transitions. [2019-10-15 01:10:09,132 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 987 transitions. Word has length 93 [2019-10-15 01:10:09,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:09,134 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 987 transitions. [2019-10-15 01:10:09,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 987 transitions. [2019-10-15 01:10:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:10:09,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:09,136 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:09,136 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:09,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1319589162, now seen corresponding path program 1 times [2019-10-15 01:10:09,139 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:09,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545234149] [2019-10-15 01:10:09,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:09,278 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545234149] [2019-10-15 01:10:09,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:09,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:09,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138169104] [2019-10-15 01:10:09,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:09,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:09,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:09,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:09,281 INFO L87 Difference]: Start difference. First operand 629 states and 987 transitions. Second operand 6 states. [2019-10-15 01:10:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:09,468 INFO L93 Difference]: Finished difference Result 1179 states and 1867 transitions. [2019-10-15 01:10:09,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:09,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-10-15 01:10:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:09,474 INFO L225 Difference]: With dead ends: 1179 [2019-10-15 01:10:09,474 INFO L226 Difference]: Without dead ends: 629 [2019-10-15 01:10:09,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:09,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-15 01:10:09,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-15 01:10:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-15 01:10:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 983 transitions. [2019-10-15 01:10:09,497 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 983 transitions. Word has length 94 [2019-10-15 01:10:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:09,497 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 983 transitions. [2019-10-15 01:10:09,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 983 transitions. [2019-10-15 01:10:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-15 01:10:09,499 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:09,499 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:09,500 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:09,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1137004480, now seen corresponding path program 1 times [2019-10-15 01:10:09,500 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:09,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983661944] [2019-10-15 01:10:09,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:09,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983661944] [2019-10-15 01:10:09,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:09,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:09,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062790795] [2019-10-15 01:10:09,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:09,609 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:09,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:09,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:09,610 INFO L87 Difference]: Start difference. First operand 629 states and 983 transitions. Second operand 6 states. [2019-10-15 01:10:09,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:09,811 INFO L93 Difference]: Finished difference Result 1179 states and 1863 transitions. [2019-10-15 01:10:09,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:09,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2019-10-15 01:10:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:09,817 INFO L225 Difference]: With dead ends: 1179 [2019-10-15 01:10:09,817 INFO L226 Difference]: Without dead ends: 629 [2019-10-15 01:10:09,820 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-15 01:10:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2019-10-15 01:10:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-15 01:10:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 979 transitions. [2019-10-15 01:10:09,876 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 979 transitions. Word has length 95 [2019-10-15 01:10:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:09,877 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 979 transitions. [2019-10-15 01:10:09,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:09,877 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 979 transitions. [2019-10-15 01:10:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-15 01:10:09,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:09,879 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:09,879 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:09,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2110108608, now seen corresponding path program 1 times [2019-10-15 01:10:09,880 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:09,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389576766] [2019-10-15 01:10:09,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:09,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:10,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389576766] [2019-10-15 01:10:10,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:10,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:10:10,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066737893] [2019-10-15 01:10:10,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:10:10,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:10,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:10:10,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:10:10,009 INFO L87 Difference]: Start difference. First operand 629 states and 979 transitions. Second operand 7 states. [2019-10-15 01:10:10,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:10,105 INFO L93 Difference]: Finished difference Result 1179 states and 1859 transitions. [2019-10-15 01:10:10,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:10:10,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-10-15 01:10:10,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:10,110 INFO L225 Difference]: With dead ends: 1179 [2019-10-15 01:10:10,110 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:10:10,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:10:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2019-10-15 01:10:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-15 01:10:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 945 transitions. [2019-10-15 01:10:10,131 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 945 transitions. Word has length 95 [2019-10-15 01:10:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:10,132 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 945 transitions. [2019-10-15 01:10:10,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:10:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 945 transitions. [2019-10-15 01:10:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-15 01:10:10,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:10,133 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:10,134 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:10,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:10,134 INFO L82 PathProgramCache]: Analyzing trace with hash -266950161, now seen corresponding path program 1 times [2019-10-15 01:10:10,134 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:10,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961238612] [2019-10-15 01:10:10,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:10,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961238612] [2019-10-15 01:10:10,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:10,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:10,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610970786] [2019-10-15 01:10:10,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:10,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:10,246 INFO L87 Difference]: Start difference. First operand 608 states and 945 transitions. Second operand 6 states. [2019-10-15 01:10:10,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:10,344 INFO L93 Difference]: Finished difference Result 1158 states and 1825 transitions. [2019-10-15 01:10:10,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:10,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2019-10-15 01:10:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:10,351 INFO L225 Difference]: With dead ends: 1158 [2019-10-15 01:10:10,351 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:10:10,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:10,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:10:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2019-10-15 01:10:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-15 01:10:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 944 transitions. [2019-10-15 01:10:10,379 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 944 transitions. Word has length 96 [2019-10-15 01:10:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:10,379 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 944 transitions. [2019-10-15 01:10:10,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 944 transitions. [2019-10-15 01:10:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-15 01:10:10,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:10,382 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:10,382 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:10,382 INFO L82 PathProgramCache]: Analyzing trace with hash -878667867, now seen corresponding path program 1 times [2019-10-15 01:10:10,383 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:10,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985841611] [2019-10-15 01:10:10,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:10,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985841611] [2019-10-15 01:10:10,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:10,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:10,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064575159] [2019-10-15 01:10:10,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:10,497 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:10,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:10,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:10,498 INFO L87 Difference]: Start difference. First operand 608 states and 944 transitions. Second operand 6 states. [2019-10-15 01:10:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:10,584 INFO L93 Difference]: Finished difference Result 1158 states and 1824 transitions. [2019-10-15 01:10:10,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:10,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2019-10-15 01:10:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:10,589 INFO L225 Difference]: With dead ends: 1158 [2019-10-15 01:10:10,590 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:10:10,592 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:10:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2019-10-15 01:10:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-15 01:10:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 943 transitions. [2019-10-15 01:10:10,611 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 943 transitions. Word has length 97 [2019-10-15 01:10:10,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:10,611 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 943 transitions. [2019-10-15 01:10:10,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:10,612 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 943 transitions. [2019-10-15 01:10:10,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-15 01:10:10,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:10,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:10,614 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:10,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:10,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1594122932, now seen corresponding path program 1 times [2019-10-15 01:10:10,614 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:10,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134464247] [2019-10-15 01:10:10,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:10,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:10,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134464247] [2019-10-15 01:10:10,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:10,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:10:10,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142852221] [2019-10-15 01:10:10,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:10:10,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:10,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:10:10,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:10:10,831 INFO L87 Difference]: Start difference. First operand 608 states and 943 transitions. Second operand 12 states. [2019-10-15 01:10:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:11,002 INFO L93 Difference]: Finished difference Result 1159 states and 1823 transitions. [2019-10-15 01:10:11,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:10:11,003 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-15 01:10:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:11,007 INFO L225 Difference]: With dead ends: 1159 [2019-10-15 01:10:11,008 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:10:11,011 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:10:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:10:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2019-10-15 01:10:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-15 01:10:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 942 transitions. [2019-10-15 01:10:11,030 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 942 transitions. Word has length 98 [2019-10-15 01:10:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:11,031 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 942 transitions. [2019-10-15 01:10:11,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:10:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 942 transitions. [2019-10-15 01:10:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-15 01:10:11,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:11,032 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:11,033 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:11,033 INFO L82 PathProgramCache]: Analyzing trace with hash -679219796, now seen corresponding path program 1 times [2019-10-15 01:10:11,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:11,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938838824] [2019-10-15 01:10:11,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:11,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:11,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:10:11,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938838824] [2019-10-15 01:10:11,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:11,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:10:11,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536520617] [2019-10-15 01:10:11,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:10:11,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:11,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:10:11,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:10:11,177 INFO L87 Difference]: Start difference. First operand 608 states and 942 transitions. Second operand 6 states. [2019-10-15 01:10:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:14,767 INFO L93 Difference]: Finished difference Result 1788 states and 2856 transitions. [2019-10-15 01:10:14,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:14,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2019-10-15 01:10:14,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:14,781 INFO L225 Difference]: With dead ends: 1788 [2019-10-15 01:10:14,781 INFO L226 Difference]: Without dead ends: 1246 [2019-10-15 01:10:14,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:10:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2019-10-15 01:10:14,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1119. [2019-10-15 01:10:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2019-10-15 01:10:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1781 transitions. [2019-10-15 01:10:14,834 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1781 transitions. Word has length 99 [2019-10-15 01:10:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:14,834 INFO L462 AbstractCegarLoop]: Abstraction has 1119 states and 1781 transitions. [2019-10-15 01:10:14,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:10:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1781 transitions. [2019-10-15 01:10:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:10:14,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:14,839 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:14,840 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:14,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1052224064, now seen corresponding path program 1 times [2019-10-15 01:10:14,840 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:14,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962284096] [2019-10-15 01:10:14,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:14,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:14,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:15,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962284096] [2019-10-15 01:10:15,018 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848665321] [2019-10-15 01:10:15,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:15,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:10:15,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:10:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:15,968 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:10:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:16,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:10:16,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 13 [2019-10-15 01:10:16,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012355776] [2019-10-15 01:10:16,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:10:16,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:16,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:10:16,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:10:16,898 INFO L87 Difference]: Start difference. First operand 1119 states and 1781 transitions. Second operand 5 states. [2019-10-15 01:10:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:17,907 INFO L93 Difference]: Finished difference Result 2188 states and 3571 transitions. [2019-10-15 01:10:17,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:17,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2019-10-15 01:10:17,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:17,918 INFO L225 Difference]: With dead ends: 2188 [2019-10-15 01:10:17,918 INFO L226 Difference]: Without dead ends: 1135 [2019-10-15 01:10:17,925 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 302 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:10:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2019-10-15 01:10:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1135. [2019-10-15 01:10:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2019-10-15 01:10:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1807 transitions. [2019-10-15 01:10:17,978 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1807 transitions. Word has length 158 [2019-10-15 01:10:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:17,979 INFO L462 AbstractCegarLoop]: Abstraction has 1135 states and 1807 transitions. [2019-10-15 01:10:17,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:10:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1807 transitions. [2019-10-15 01:10:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 01:10:17,984 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:17,984 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:18,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:18,192 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash -243554836, now seen corresponding path program 1 times [2019-10-15 01:10:18,193 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:18,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147106186] [2019-10-15 01:10:18,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:18,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:18,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:18,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147106186] [2019-10-15 01:10:18,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120224351] [2019-10-15 01:10:18,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:18,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 3052 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:10:18,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:10:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:18,905 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:10:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:19,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:10:19,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 13 [2019-10-15 01:10:19,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690597711] [2019-10-15 01:10:19,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:10:19,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:19,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:10:19,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:10:19,827 INFO L87 Difference]: Start difference. First operand 1135 states and 1807 transitions. Second operand 5 states. [2019-10-15 01:10:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:20,637 INFO L93 Difference]: Finished difference Result 2220 states and 3617 transitions. [2019-10-15 01:10:20,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:20,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2019-10-15 01:10:20,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:20,647 INFO L225 Difference]: With dead ends: 2220 [2019-10-15 01:10:20,647 INFO L226 Difference]: Without dead ends: 1151 [2019-10-15 01:10:20,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 306 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:10:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-10-15 01:10:20,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2019-10-15 01:10:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2019-10-15 01:10:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1833 transitions. [2019-10-15 01:10:20,706 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1833 transitions. Word has length 160 [2019-10-15 01:10:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:20,707 INFO L462 AbstractCegarLoop]: Abstraction has 1151 states and 1833 transitions. [2019-10-15 01:10:20,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:10:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1833 transitions. [2019-10-15 01:10:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 01:10:20,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:20,715 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:20,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:20,924 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:20,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1777020151, now seen corresponding path program 1 times [2019-10-15 01:10:20,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:20,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581516377] [2019-10-15 01:10:20,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:20,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:20,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 01:10:21,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581516377] [2019-10-15 01:10:21,113 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:10:21,113 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:10:21,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697029792] [2019-10-15 01:10:21,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:10:21,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:21,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:10:21,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:10:21,115 INFO L87 Difference]: Start difference. First operand 1151 states and 1833 transitions. Second operand 12 states. [2019-10-15 01:10:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:31,582 INFO L93 Difference]: Finished difference Result 3778 states and 6034 transitions. [2019-10-15 01:10:31,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 01:10:31,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 161 [2019-10-15 01:10:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:31,604 INFO L225 Difference]: With dead ends: 3778 [2019-10-15 01:10:31,605 INFO L226 Difference]: Without dead ends: 2693 [2019-10-15 01:10:31,611 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:10:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2019-10-15 01:10:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2635. [2019-10-15 01:10:31,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2635 states. [2019-10-15 01:10:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 4166 transitions. [2019-10-15 01:10:31,736 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 4166 transitions. Word has length 161 [2019-10-15 01:10:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:31,737 INFO L462 AbstractCegarLoop]: Abstraction has 2635 states and 4166 transitions. [2019-10-15 01:10:31,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:10:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 4166 transitions. [2019-10-15 01:10:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:10:31,742 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:31,743 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:31,743 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:31,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:31,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1774849534, now seen corresponding path program 1 times [2019-10-15 01:10:31,743 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:31,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855113855] [2019-10-15 01:10:31,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:31,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:31,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:32,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855113855] [2019-10-15 01:10:32,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100561809] [2019-10-15 01:10:32,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:32,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:10:32,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:10:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:32,608 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:10:33,395 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:33,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:10:33,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 13 [2019-10-15 01:10:33,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959953344] [2019-10-15 01:10:33,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:10:33,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:33,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:10:33,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:10:33,397 INFO L87 Difference]: Start difference. First operand 2635 states and 4166 transitions. Second operand 5 states. [2019-10-15 01:10:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:10:34,296 INFO L93 Difference]: Finished difference Result 5268 states and 8503 transitions. [2019-10-15 01:10:34,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:10:34,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2019-10-15 01:10:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:10:34,311 INFO L225 Difference]: With dead ends: 5268 [2019-10-15 01:10:34,312 INFO L226 Difference]: Without dead ends: 2699 [2019-10-15 01:10:34,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 310 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:10:34,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2019-10-15 01:10:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2699. [2019-10-15 01:10:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2019-10-15 01:10:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 4268 transitions. [2019-10-15 01:10:34,438 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 4268 transitions. Word has length 162 [2019-10-15 01:10:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:10:34,440 INFO L462 AbstractCegarLoop]: Abstraction has 2699 states and 4268 transitions. [2019-10-15 01:10:34,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:10:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 4268 transitions. [2019-10-15 01:10:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:10:34,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:10:34,446 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:10:34,663 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:34,663 INFO L410 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:10:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:10:34,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1813252378, now seen corresponding path program 1 times [2019-10-15 01:10:34,664 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:10:34,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098471764] [2019-10-15 01:10:34,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:34,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:10:34,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:10:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:34,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098471764] [2019-10-15 01:10:34,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245963150] [2019-10-15 01:10:34,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:10:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:10:35,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 3059 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:10:35,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:10:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:35,560 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:10:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:10:36,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:10:36,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 12 [2019-10-15 01:10:36,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804795997] [2019-10-15 01:10:36,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:10:36,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:10:36,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:10:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:10:36,595 INFO L87 Difference]: Start difference. First operand 2699 states and 4268 transitions. Second operand 5 states.