java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:32:39,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:32:39,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:32:39,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:32:39,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:32:39,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:32:39,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:32:39,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:32:39,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:32:39,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:32:39,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:32:39,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:32:39,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:32:39,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:32:39,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:32:39,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:32:39,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:32:39,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:32:39,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:32:39,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:32:39,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:32:39,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:32:39,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:32:39,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:32:39,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:32:39,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:32:39,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:32:39,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:32:39,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:32:39,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:32:39,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:32:39,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:32:39,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:32:39,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:32:39,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:32:39,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:32:39,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:32:39,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:32:39,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:32:39,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:32:39,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:32:39,916 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 [2019-10-07 14:32:39,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:32:39,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:32:39,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:32:39,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:32:39,942 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:32:39,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:32:39,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:32:39,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:32:39,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:32:39,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:32:39,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:32:39,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:32:39,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:32:39,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:32:39,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:32:39,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:32:39,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:32:39,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:32:39,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:32:39,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:32:39,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:32:39,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:32:39,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:32:39,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:32:39,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:32:39,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:32:39,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:32:39,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:32:39,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:32:40,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:32:40,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:32:40,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:32:40,249 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:32:40,250 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:32:40,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product11.cil.c [2019-10-07 14:32:40,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1321140a/9330ca725a16458bb1fc860714e5895a/FLAG49057ef01 [2019-10-07 14:32:40,928 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:32:40,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product11.cil.c [2019-10-07 14:32:40,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1321140a/9330ca725a16458bb1fc860714e5895a/FLAG49057ef01 [2019-10-07 14:32:41,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1321140a/9330ca725a16458bb1fc860714e5895a [2019-10-07 14:32:41,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:32:41,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:32:41,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:41,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:32:41,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:32:41,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:41" (1/1) ... [2019-10-07 14:32:41,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353a0f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:41, skipping insertion in model container [2019-10-07 14:32:41,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:41" (1/1) ... [2019-10-07 14:32:41,206 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:32:41,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:32:41,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:42,006 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:32:42,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:42,227 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:32:42,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42 WrapperNode [2019-10-07 14:32:42,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:42,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:32:42,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:32:42,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:32:42,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (1/1) ... [2019-10-07 14:32:42,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:32:42,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:32:42,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:32:42,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:32:42,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (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 [2019-10-07 14:32:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:32:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:32:42,533 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:32:42,533 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:32:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:32:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:32:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:32:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:32:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:32:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:32:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:32:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:32:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:32:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:32:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:32:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:32:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:32:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:32:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:32:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:32:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:32:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:32:42,546 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:32:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:32:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:32:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:32:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:32:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:32:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:32:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:32:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:32:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:32:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:32:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:32:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:32:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:32:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:32:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:32:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:32:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:32:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:32:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:32:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:32:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:32:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:32:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:32:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:32:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:32:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:32:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:32:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:32:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:32:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:32:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:32:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:32:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:32:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:32:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:32:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:32:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:32:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:32:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:32:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:32:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:32:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:32:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:32:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:32:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:32:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:32:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:32:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:32:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:32:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:32:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:32:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:32:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:32:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:32:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:32:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:32:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:32:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:32:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:32:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:32:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:32:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:32:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:32:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:32:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:32:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:32:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:32:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:32:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:32:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:32:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:32:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:32:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:32:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:32:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:32:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:32:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:32:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:32:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:32:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:32:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:32:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:32:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:32:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:32:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:32:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:32:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:32:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:32:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:32:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:32:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:32:47,784 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:32:47,785 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:32:47,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:32:47 BoogieIcfgContainer [2019-10-07 14:32:47,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:32:47,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:32:47,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:32:47,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:32:47,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:32:41" (1/3) ... [2019-10-07 14:32:47,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbc9a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:32:47, skipping insertion in model container [2019-10-07 14:32:47,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:42" (2/3) ... [2019-10-07 14:32:47,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbc9a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:32:47, skipping insertion in model container [2019-10-07 14:32:47,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:32:47" (3/3) ... [2019-10-07 14:32:47,798 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2019-10-07 14:32:47,808 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:32:47,819 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:32:47,831 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:32:47,863 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:32:47,863 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:32:47,864 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:32:47,864 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:32:47,864 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:32:47,864 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:32:47,864 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:32:47,864 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:32:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states. [2019-10-07 14:32:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:32:47,918 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:47,919 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:32:47,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:47,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1545748670, now seen corresponding path program 1 times [2019-10-07 14:32:47,938 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:47,938 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:47,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:47,939 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:48,682 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:48,683 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:48,683 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:32:48,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:32:48,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:32:48,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:32:48,705 INFO L87 Difference]: Start difference. First operand 555 states. Second operand 2 states. [2019-10-07 14:32:48,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:48,769 INFO L93 Difference]: Finished difference Result 458 states and 681 transitions. [2019-10-07 14:32:48,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:32:48,771 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:32:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:48,796 INFO L225 Difference]: With dead ends: 458 [2019-10-07 14:32:48,796 INFO L226 Difference]: Without dead ends: 424 [2019-10-07 14:32:48,801 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:32:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-10-07 14:32:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2019-10-07 14:32:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2019-10-07 14:32:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 630 transitions. [2019-10-07 14:32:48,893 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 630 transitions. Word has length 112 [2019-10-07 14:32:48,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:48,896 INFO L462 AbstractCegarLoop]: Abstraction has 424 states and 630 transitions. [2019-10-07 14:32:48,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:32:48,896 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 630 transitions. [2019-10-07 14:32:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:32:48,903 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:48,903 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:32:48,904 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:48,904 INFO L82 PathProgramCache]: Analyzing trace with hash -179594714, now seen corresponding path program 1 times [2019-10-07 14:32:48,904 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:48,905 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:48,905 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:48,905 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:49,269 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:49,270 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:49,270 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:32:49,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:32:49,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:32:49,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:49,278 INFO L87 Difference]: Start difference. First operand 424 states and 630 transitions. Second operand 7 states. [2019-10-07 14:32:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:52,993 INFO L93 Difference]: Finished difference Result 1199 states and 1827 transitions. [2019-10-07 14:32:52,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:32:52,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:32:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:53,008 INFO L225 Difference]: With dead ends: 1199 [2019-10-07 14:32:53,008 INFO L226 Difference]: Without dead ends: 817 [2019-10-07 14:32:53,013 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:32:53,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2019-10-07 14:32:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 792. [2019-10-07 14:32:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2019-10-07 14:32:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1203 transitions. [2019-10-07 14:32:53,098 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1203 transitions. Word has length 113 [2019-10-07 14:32:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:53,099 INFO L462 AbstractCegarLoop]: Abstraction has 792 states and 1203 transitions. [2019-10-07 14:32:53,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:32:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1203 transitions. [2019-10-07 14:32:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:32:53,103 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:53,103 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:32:53,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:53,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1071775104, now seen corresponding path program 1 times [2019-10-07 14:32:53,104 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:53,104 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:53,105 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:53,105 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:53,304 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:53,304 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:53,305 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:53,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:53,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:53,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:53,308 INFO L87 Difference]: Start difference. First operand 792 states and 1203 transitions. Second operand 3 states. [2019-10-07 14:32:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:53,443 INFO L93 Difference]: Finished difference Result 2260 states and 3501 transitions. [2019-10-07 14:32:53,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:53,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-07 14:32:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:53,464 INFO L225 Difference]: With dead ends: 2260 [2019-10-07 14:32:53,465 INFO L226 Difference]: Without dead ends: 1510 [2019-10-07 14:32:53,470 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2019-10-07 14:32:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1478. [2019-10-07 14:32:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1478 states. [2019-10-07 14:32:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2285 transitions. [2019-10-07 14:32:53,612 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2285 transitions. Word has length 117 [2019-10-07 14:32:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:53,614 INFO L462 AbstractCegarLoop]: Abstraction has 1478 states and 2285 transitions. [2019-10-07 14:32:53,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2285 transitions. [2019-10-07 14:32:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:32:53,623 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:53,623 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:32:53,624 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:53,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1136002442, now seen corresponding path program 1 times [2019-10-07 14:32:53,624 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:53,625 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:53,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:53,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:53,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:53,804 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:53,804 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:53,804 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:53,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:53,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:53,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:53,806 INFO L87 Difference]: Start difference. First operand 1478 states and 2285 transitions. Second operand 3 states. [2019-10-07 14:32:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:54,083 INFO L93 Difference]: Finished difference Result 4319 states and 6784 transitions. [2019-10-07 14:32:54,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:54,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:32:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:54,111 INFO L225 Difference]: With dead ends: 4319 [2019-10-07 14:32:54,111 INFO L226 Difference]: Without dead ends: 2884 [2019-10-07 14:32:54,121 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2019-10-07 14:32:54,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2851. [2019-10-07 14:32:54,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-10-07 14:32:54,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4471 transitions. [2019-10-07 14:32:54,298 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4471 transitions. Word has length 118 [2019-10-07 14:32:54,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:54,299 INFO L462 AbstractCegarLoop]: Abstraction has 2851 states and 4471 transitions. [2019-10-07 14:32:54,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4471 transitions. [2019-10-07 14:32:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:32:54,303 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:54,304 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:32:54,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:54,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:54,305 INFO L82 PathProgramCache]: Analyzing trace with hash -857625726, now seen corresponding path program 1 times [2019-10-07 14:32:54,305 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:54,305 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:54,305 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:54,306 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:54,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:54,444 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:54,444 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:54,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:54,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:54,446 INFO L87 Difference]: Start difference. First operand 2851 states and 4471 transitions. Second operand 3 states. [2019-10-07 14:32:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:54,719 INFO L93 Difference]: Finished difference Result 8438 states and 13461 transitions. [2019-10-07 14:32:54,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:54,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:32:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:54,767 INFO L225 Difference]: With dead ends: 8438 [2019-10-07 14:32:54,768 INFO L226 Difference]: Without dead ends: 5632 [2019-10-07 14:32:54,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2019-10-07 14:32:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 5598. [2019-10-07 14:32:55,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5598 states. [2019-10-07 14:32:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 8919 transitions. [2019-10-07 14:32:55,169 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 8919 transitions. Word has length 119 [2019-10-07 14:32:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:55,170 INFO L462 AbstractCegarLoop]: Abstraction has 5598 states and 8919 transitions. [2019-10-07 14:32:55,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 8919 transitions. [2019-10-07 14:32:55,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:32:55,174 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:55,174 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:55,175 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:55,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:55,175 INFO L82 PathProgramCache]: Analyzing trace with hash -817878216, now seen corresponding path program 1 times [2019-10-07 14:32:55,175 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:55,175 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:55,176 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:55,176 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:55,308 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:55,309 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:55,309 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:55,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:55,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:55,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:55,310 INFO L87 Difference]: Start difference. First operand 5598 states and 8919 transitions. Second operand 3 states. [2019-10-07 14:32:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:55,772 INFO L93 Difference]: Finished difference Result 16677 states and 27208 transitions. [2019-10-07 14:32:55,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:55,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 14:32:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:55,901 INFO L225 Difference]: With dead ends: 16677 [2019-10-07 14:32:55,902 INFO L226 Difference]: Without dead ends: 11128 [2019-10-07 14:32:55,946 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2019-10-07 14:32:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 11093. [2019-10-07 14:32:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11093 states. [2019-10-07 14:32:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11093 states to 11093 states and 18091 transitions. [2019-10-07 14:32:57,403 INFO L78 Accepts]: Start accepts. Automaton has 11093 states and 18091 transitions. Word has length 120 [2019-10-07 14:32:57,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:57,405 INFO L462 AbstractCegarLoop]: Abstraction has 11093 states and 18091 transitions. [2019-10-07 14:32:57,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 11093 states and 18091 transitions. [2019-10-07 14:32:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:32:57,410 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:57,410 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:57,410 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:57,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:57,411 INFO L82 PathProgramCache]: Analyzing trace with hash 414298500, now seen corresponding path program 1 times [2019-10-07 14:32:57,411 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:57,411 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:57,411 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:57,412 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:32:57,554 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:57,554 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:57,554 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:57,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:57,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:57,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:57,556 INFO L87 Difference]: Start difference. First operand 11093 states and 18091 transitions. Second operand 3 states. [2019-10-07 14:32:58,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:58,019 INFO L93 Difference]: Finished difference Result 11816 states and 19352 transitions. [2019-10-07 14:32:58,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:58,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 14:32:58,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:58,153 INFO L225 Difference]: With dead ends: 11816 [2019-10-07 14:32:58,153 INFO L226 Difference]: Without dead ends: 11803 [2019-10-07 14:32:58,166 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:58,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11803 states. [2019-10-07 14:32:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11803 to 11773. [2019-10-07 14:32:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11773 states. [2019-10-07 14:32:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 19290 transitions. [2019-10-07 14:32:58,975 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 19290 transitions. Word has length 121 [2019-10-07 14:32:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:58,978 INFO L462 AbstractCegarLoop]: Abstraction has 11773 states and 19290 transitions. [2019-10-07 14:32:58,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 19290 transitions. [2019-10-07 14:32:58,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:32:58,984 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:58,985 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:58,985 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:58,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1018230350, now seen corresponding path program 1 times [2019-10-07 14:32:58,986 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:58,986 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:58,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:58,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:32:59,173 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:59,174 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:59,174 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:32:59,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:32:59,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:32:59,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:32:59,176 INFO L87 Difference]: Start difference. First operand 11773 states and 19290 transitions. Second operand 5 states. [2019-10-07 14:32:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:59,629 INFO L93 Difference]: Finished difference Result 23690 states and 39514 transitions. [2019-10-07 14:32:59,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:32:59,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2019-10-07 14:32:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:59,874 INFO L225 Difference]: With dead ends: 23690 [2019-10-07 14:32:59,875 INFO L226 Difference]: Without dead ends: 11960 [2019-10-07 14:32:59,923 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:32:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11960 states. [2019-10-07 14:33:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11960 to 11957. [2019-10-07 14:33:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11957 states. [2019-10-07 14:33:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11957 states to 11957 states and 19636 transitions. [2019-10-07 14:33:00,644 INFO L78 Accepts]: Start accepts. Automaton has 11957 states and 19636 transitions. Word has length 179 [2019-10-07 14:33:00,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:00,645 INFO L462 AbstractCegarLoop]: Abstraction has 11957 states and 19636 transitions. [2019-10-07 14:33:00,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:33:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 11957 states and 19636 transitions. [2019-10-07 14:33:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:33:00,654 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:00,654 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:00,654 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:00,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:00,655 INFO L82 PathProgramCache]: Analyzing trace with hash 502984796, now seen corresponding path program 1 times [2019-10-07 14:33:00,655 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:00,655 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:00,655 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:00,656 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:33:00,865 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:00,866 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:00,866 INFO L95 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 [2019-10-07 14:33:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:01,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 3359 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:01,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:33:01,848 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:33:02,377 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:02,378 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:33:02,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:02,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:02,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:33:02,379 INFO L87 Difference]: Start difference. First operand 11957 states and 19636 transitions. Second operand 4 states. [2019-10-07 14:33:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:03,314 INFO L93 Difference]: Finished difference Result 25197 states and 42524 transitions. [2019-10-07 14:33:03,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:03,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2019-10-07 14:33:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:03,441 INFO L225 Difference]: With dead ends: 25197 [2019-10-07 14:33:03,441 INFO L226 Difference]: Without dead ends: 13283 [2019-10-07 14:33:03,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 367 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:33:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13283 states. [2019-10-07 14:33:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13283 to 13283. [2019-10-07 14:33:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13283 states. [2019-10-07 14:33:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 22118 transitions. [2019-10-07 14:33:05,074 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 22118 transitions. Word has length 184 [2019-10-07 14:33:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:05,075 INFO L462 AbstractCegarLoop]: Abstraction has 13283 states and 22118 transitions. [2019-10-07 14:33:05,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 22118 transitions. [2019-10-07 14:33:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 14:33:05,085 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:05,085 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:05,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:05,302 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1854757790, now seen corresponding path program 1 times [2019-10-07 14:33:05,303 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:05,303 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:05,303 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:05,303 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:33:05,602 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:05,602 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:05,602 INFO L95 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 [2019-10-07 14:33:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:06,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 3364 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:06,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:33:06,399 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:33:07,100 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:07,100 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:33:07,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:07,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:07,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:07,103 INFO L87 Difference]: Start difference. First operand 13283 states and 22118 transitions. Second operand 4 states. [2019-10-07 14:33:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:07,673 INFO L93 Difference]: Finished difference Result 27849 states and 47454 transitions. [2019-10-07 14:33:07,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:07,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2019-10-07 14:33:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:07,753 INFO L225 Difference]: With dead ends: 27849 [2019-10-07 14:33:07,754 INFO L226 Difference]: Without dead ends: 14609 [2019-10-07 14:33:07,804 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:33:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14609 states. [2019-10-07 14:33:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14609 to 14609. [2019-10-07 14:33:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14609 states. [2019-10-07 14:33:08,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14609 states to 14609 states and 24600 transitions. [2019-10-07 14:33:08,589 INFO L78 Accepts]: Start accepts. Automaton has 14609 states and 24600 transitions. Word has length 189 [2019-10-07 14:33:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:08,594 INFO L462 AbstractCegarLoop]: Abstraction has 14609 states and 24600 transitions. [2019-10-07 14:33:08,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14609 states and 24600 transitions. [2019-10-07 14:33:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 14:33:08,605 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:08,606 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:08,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:08,819 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:08,820 INFO L82 PathProgramCache]: Analyzing trace with hash -295601390, now seen corresponding path program 1 times [2019-10-07 14:33:08,820 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:08,820 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:08,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:08,821 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:33:09,146 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:09,147 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:09,147 INFO L95 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 [2019-10-07 14:33:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:10,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 3368 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:10,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:33:10,314 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:33:10,778 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:10,778 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:33:10,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:10,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:10,781 INFO L87 Difference]: Start difference. First operand 14609 states and 24600 transitions. Second operand 4 states. [2019-10-07 14:33:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:11,367 INFO L93 Difference]: Finished difference Result 30501 states and 52384 transitions. [2019-10-07 14:33:11,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:11,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2019-10-07 14:33:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:11,459 INFO L225 Difference]: With dead ends: 30501 [2019-10-07 14:33:11,459 INFO L226 Difference]: Without dead ends: 15935 [2019-10-07 14:33:11,502 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 383 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:33:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15935 states. [2019-10-07 14:33:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15935 to 15935. [2019-10-07 14:33:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15935 states. [2019-10-07 14:33:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15935 states to 15935 states and 27082 transitions. [2019-10-07 14:33:12,578 INFO L78 Accepts]: Start accepts. Automaton has 15935 states and 27082 transitions. Word has length 193 [2019-10-07 14:33:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:12,579 INFO L462 AbstractCegarLoop]: Abstraction has 15935 states and 27082 transitions. [2019-10-07 14:33:12,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:12,579 INFO L276 IsEmpty]: Start isEmpty. Operand 15935 states and 27082 transitions. [2019-10-07 14:33:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 14:33:12,590 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:12,590 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:12,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:12,801 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1313649928, now seen corresponding path program 1 times [2019-10-07 14:33:12,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:12,802 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:12,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:12,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:33:13,029 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:13,029 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:13,029 INFO L95 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 [2019-10-07 14:33:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:13,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 3371 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:13,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:33:13,849 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:33:14,404 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:14,404 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:33:14,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:14,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:14,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:14,407 INFO L87 Difference]: Start difference. First operand 15935 states and 27082 transitions. Second operand 4 states. [2019-10-07 14:33:14,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:14,948 INFO L93 Difference]: Finished difference Result 33153 states and 57314 transitions. [2019-10-07 14:33:14,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:14,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2019-10-07 14:33:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:15,050 INFO L225 Difference]: With dead ends: 33153 [2019-10-07 14:33:15,050 INFO L226 Difference]: Without dead ends: 17261 [2019-10-07 14:33:15,101 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:33:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17261 states. [2019-10-07 14:33:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17261 to 17261. [2019-10-07 14:33:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17261 states. [2019-10-07 14:33:16,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17261 states to 17261 states and 29564 transitions. [2019-10-07 14:33:16,598 INFO L78 Accepts]: Start accepts. Automaton has 17261 states and 29564 transitions. Word has length 196 [2019-10-07 14:33:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:16,599 INFO L462 AbstractCegarLoop]: Abstraction has 17261 states and 29564 transitions. [2019-10-07 14:33:16,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 17261 states and 29564 transitions. [2019-10-07 14:33:16,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:33:16,609 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:16,609 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:16,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:16,820 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:16,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:16,820 INFO L82 PathProgramCache]: Analyzing trace with hash 25505944, now seen corresponding path program 1 times [2019-10-07 14:33:16,821 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:16,821 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:16,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:16,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:16,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:33:17,066 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:17,066 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:17,066 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:33:17,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:17,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:17,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:33:17,068 INFO L87 Difference]: Start difference. First operand 17261 states and 29564 transitions. Second operand 4 states. [2019-10-07 14:33:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:17,613 INFO L93 Difference]: Finished difference Result 35907 states and 62210 transitions. [2019-10-07 14:33:17,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:17,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2019-10-07 14:33:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:17,690 INFO L225 Difference]: With dead ends: 35907 [2019-10-07 14:33:17,690 INFO L226 Difference]: Without dead ends: 18417 [2019-10-07 14:33:17,727 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:33:17,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18417 states. [2019-10-07 14:33:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18417 to 18417. [2019-10-07 14:33:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18417 states. [2019-10-07 14:33:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18417 states to 18417 states and 30176 transitions. [2019-10-07 14:33:18,248 INFO L78 Accepts]: Start accepts. Automaton has 18417 states and 30176 transitions. Word has length 198 [2019-10-07 14:33:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:18,249 INFO L462 AbstractCegarLoop]: Abstraction has 18417 states and 30176 transitions. [2019-10-07 14:33:18,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand 18417 states and 30176 transitions. [2019-10-07 14:33:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:33:18,256 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:18,256 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:18,257 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:18,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:18,257 INFO L82 PathProgramCache]: Analyzing trace with hash -841318905, now seen corresponding path program 1 times [2019-10-07 14:33:18,258 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:18,258 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:18,258 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:18,258 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:33:18,802 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:18,802 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:18,802 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:33:18,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:33:18,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:33:18,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:33:18,807 INFO L87 Difference]: Start difference. First operand 18417 states and 30176 transitions. Second operand 9 states. [2019-10-07 14:33:23,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:23,865 INFO L93 Difference]: Finished difference Result 41760 states and 69273 transitions. [2019-10-07 14:33:23,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 14:33:23,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 198 [2019-10-07 14:33:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:23,964 INFO L225 Difference]: With dead ends: 41760 [2019-10-07 14:33:23,964 INFO L226 Difference]: Without dead ends: 19559 [2019-10-07 14:33:24,017 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:33:24,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19559 states. [2019-10-07 14:33:24,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19559 to 19234. [2019-10-07 14:33:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19234 states. [2019-10-07 14:33:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19234 states to 19234 states and 29876 transitions. [2019-10-07 14:33:25,071 INFO L78 Accepts]: Start accepts. Automaton has 19234 states and 29876 transitions. Word has length 198 [2019-10-07 14:33:25,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:25,072 INFO L462 AbstractCegarLoop]: Abstraction has 19234 states and 29876 transitions. [2019-10-07 14:33:25,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:33:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 19234 states and 29876 transitions. [2019-10-07 14:33:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-07 14:33:25,082 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:25,083 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:25,083 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:25,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1469795298, now seen corresponding path program 1 times [2019-10-07 14:33:25,084 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:25,084 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:25,084 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:25,084 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:33:26,010 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:26,010 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:26,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:33:26,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:26,842 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:27,593 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:27,594 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [33] total 41 [2019-10-07 14:33:27,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:33:27,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:33:27,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1507, Unknown=0, NotChecked=0, Total=1640 [2019-10-07 14:33:27,597 INFO L87 Difference]: Start difference. First operand 19234 states and 29876 transitions. Second operand 10 states. [2019-10-07 14:33:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:29,823 INFO L93 Difference]: Finished difference Result 47328 states and 73671 transitions. [2019-10-07 14:33:29,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:33:29,824 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2019-10-07 14:33:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:29,971 INFO L225 Difference]: With dead ends: 47328 [2019-10-07 14:33:29,972 INFO L226 Difference]: Without dead ends: 28152 [2019-10-07 14:33:30,021 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 394 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=1507, Unknown=0, NotChecked=0, Total=1640 [2019-10-07 14:33:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28152 states. [2019-10-07 14:33:31,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28152 to 27661. [2019-10-07 14:33:31,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27661 states. [2019-10-07 14:33:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27661 states to 27661 states and 42963 transitions. [2019-10-07 14:33:31,122 INFO L78 Accepts]: Start accepts. Automaton has 27661 states and 42963 transitions. Word has length 199 [2019-10-07 14:33:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:31,122 INFO L462 AbstractCegarLoop]: Abstraction has 27661 states and 42963 transitions. [2019-10-07 14:33:31,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:33:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand 27661 states and 42963 transitions. [2019-10-07 14:33:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-07 14:33:31,133 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:31,133 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:31,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:31,342 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:31,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1517580231, now seen corresponding path program 1 times [2019-10-07 14:33:31,342 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:31,342 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:31,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:31,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:33:33,603 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:33,603 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:34,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:33:34,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:34,457 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:34,988 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:34,988 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [33] total 40 [2019-10-07 14:33:34,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:33:34,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:33:34,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 14:33:34,990 INFO L87 Difference]: Start difference. First operand 27661 states and 42963 transitions. Second operand 9 states. [2019-10-07 14:33:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:36,770 INFO L93 Difference]: Finished difference Result 28794 states and 46895 transitions. [2019-10-07 14:33:36,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:33:36,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 202 [2019-10-07 14:33:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:36,883 INFO L225 Difference]: With dead ends: 28794 [2019-10-07 14:33:36,883 INFO L226 Difference]: Without dead ends: 28676 [2019-10-07 14:33:36,902 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 402 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=1575, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:33:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28676 states. [2019-10-07 14:33:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28676 to 28024. [2019-10-07 14:33:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28024 states. [2019-10-07 14:33:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28024 states to 28024 states and 43840 transitions. [2019-10-07 14:33:37,990 INFO L78 Accepts]: Start accepts. Automaton has 28024 states and 43840 transitions. Word has length 202 [2019-10-07 14:33:37,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:37,991 INFO L462 AbstractCegarLoop]: Abstraction has 28024 states and 43840 transitions. [2019-10-07 14:33:37,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:33:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 28024 states and 43840 transitions. [2019-10-07 14:33:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-07 14:33:38,002 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:38,002 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:38,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:38,211 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:38,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:38,211 INFO L82 PathProgramCache]: Analyzing trace with hash -81470222, now seen corresponding path program 1 times [2019-10-07 14:33:38,212 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:38,212 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:38,212 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:38,212 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:33:39,223 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:39,223 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:39,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 3395 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:33:39,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:40,059 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:33:40,520 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:40,521 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [33] total 36 [2019-10-07 14:33:40,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:33:40,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:33:40,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1146, Unknown=0, NotChecked=0, Total=1260 [2019-10-07 14:33:40,522 INFO L87 Difference]: Start difference. First operand 28024 states and 43840 transitions. Second operand 5 states. [2019-10-07 14:33:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:40,934 INFO L93 Difference]: Finished difference Result 28142 states and 43972 transitions. [2019-10-07 14:33:40,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:33:40,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2019-10-07 14:33:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:41,247 INFO L225 Difference]: With dead ends: 28142 [2019-10-07 14:33:41,247 INFO L226 Difference]: Without dead ends: 28024 [2019-10-07 14:33:41,258 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 416 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2019-10-07 14:33:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28024 states. [2019-10-07 14:33:42,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28024 to 28024. [2019-10-07 14:33:42,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28024 states. [2019-10-07 14:33:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28024 states to 28024 states and 43760 transitions. [2019-10-07 14:33:42,091 INFO L78 Accepts]: Start accepts. Automaton has 28024 states and 43760 transitions. Word has length 207 [2019-10-07 14:33:42,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:42,092 INFO L462 AbstractCegarLoop]: Abstraction has 28024 states and 43760 transitions. [2019-10-07 14:33:42,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:33:42,092 INFO L276 IsEmpty]: Start isEmpty. Operand 28024 states and 43760 transitions. [2019-10-07 14:33:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-07 14:33:42,104 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:42,105 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:42,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:42,316 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1663125431, now seen corresponding path program 1 times [2019-10-07 14:33:42,316 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:42,316 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:42,316 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:42,316 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:33:42,998 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:42,998 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:43,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 3438 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:33:43,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-07 14:33:43,978 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:44,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-07 14:33:44,600 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:44,600 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [33] total 40 [2019-10-07 14:33:44,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:33:44,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:33:44,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 14:33:44,602 INFO L87 Difference]: Start difference. First operand 28024 states and 43760 transitions. Second operand 9 states. [2019-10-07 14:33:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:45,342 INFO L93 Difference]: Finished difference Result 28620 states and 44469 transitions. [2019-10-07 14:33:45,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:33:45,343 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 222 [2019-10-07 14:33:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:45,427 INFO L225 Difference]: With dead ends: 28620 [2019-10-07 14:33:45,427 INFO L226 Difference]: Without dead ends: 28502 [2019-10-07 14:33:45,442 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-07 14:33:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28502 states. [2019-10-07 14:33:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28502 to 28440. [2019-10-07 14:33:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28440 states. [2019-10-07 14:33:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28440 states to 28440 states and 44192 transitions. [2019-10-07 14:33:46,159 INFO L78 Accepts]: Start accepts. Automaton has 28440 states and 44192 transitions. Word has length 222 [2019-10-07 14:33:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:46,160 INFO L462 AbstractCegarLoop]: Abstraction has 28440 states and 44192 transitions. [2019-10-07 14:33:46,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:33:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 28440 states and 44192 transitions. [2019-10-07 14:33:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2019-10-07 14:33:46,170 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:46,171 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 8, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:46,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:46,372 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:46,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1905573455, now seen corresponding path program 1 times [2019-10-07 14:33:46,373 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:46,373 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:46,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:46,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2019-10-07 14:33:46,804 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:46,805 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:47,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 4369 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 14:33:47,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 132 proven. 239 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2019-10-07 14:33:48,195 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2019-10-07 14:33:49,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:33:49,474 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-07 14:33:49,474 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:33:49,486 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:33:49,494 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:33:49,494 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:34:32,481 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:34:37,691 WARN L191 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:34:38,014 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:34:39,395 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:34:39,612 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:34:40,151 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:40,632 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:41,097 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:41,624 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:42,578 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1032 [2019-10-07 14:34:43,030 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:43,544 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:44,000 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:44,460 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:44,978 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:34:44,996 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:34:45,181 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:34:45,287 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:34:45,641 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 915 [2019-10-07 14:34:45,642 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1080 for LOIs [2019-10-07 14:34:46,088 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:46,541 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:46,661 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:47,432 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:47,885 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:48,317 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:48,443 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:49,178 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:49,645 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:50,079 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:50,329 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:51,331 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:52,234 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1080 [2019-10-07 14:34:52,671 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:52,890 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:53,689 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:54,173 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:54,616 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:54,734 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:55,479 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:55,915 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:56,361 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:56,480 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:57,229 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:57,668 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:58,115 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:58,235 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:34:58,981 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:59,419 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:59,858 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:34:59,993 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:00,749 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:01,186 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:01,630 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:01,750 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:02,497 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:02,939 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:03,378 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:03,495 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:04,230 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:04,665 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:05,096 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:05,212 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:05,954 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:06,396 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:06,846 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:06,966 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:07,700 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:08,131 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:08,565 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:35:08,682 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:09,422 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:10,216 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:10,968 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:11,094 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:11,848 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:13,211 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:35:13,962 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:14,091 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:14,842 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:15,593 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:16,338 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:16,455 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:17,213 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:18,126 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:18,888 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:19,010 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:19,765 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:21,444 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:22,206 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:22,334 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:23,081 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:23,829 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:24,562 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:24,681 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:25,416 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:26,157 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:35:26,911 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:35:27,034 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:27,802 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:35:28,548 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:29,304 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:29,436 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:30,197 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:31,885 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:32,674 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:32,795 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:33,550 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:34,307 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:35,048 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:35,283 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:36,360 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:37,103 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:37,862 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:37,980 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:38,722 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:35:40,089 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:35:40,836 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:40,996 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:41,732 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:43,122 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:35:43,870 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:43,994 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:44,732 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:45,474 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:46,214 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:46,331 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:35:47,076 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:48,453 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:35:49,202 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:49,327 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:50,067 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:51,432 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:35:52,183 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:52,312 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:53,069 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:54,434 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:35:55,180 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:55,297 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:56,044 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:35:57,422 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1257 [2019-10-07 14:35:58,192 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:35:58,319 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:35:59,068 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:36:00,433 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:36:01,182 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:36:01,307 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:02,054 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:36:03,417 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:04,170 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:04,293 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:05,042 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:06,384 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:07,116 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:07,239 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:07,976 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:08,718 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:09,466 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:09,583 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:10,339 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:11,711 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:12,451 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:12,573 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:13,320 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:14,690 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:15,432 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:15,556 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:16,306 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:17,051 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:17,797 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:17,913 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:18,662 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:19,471 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:20,216 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:20,341 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:21,096 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:21,852 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:22,601 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:22,733 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:23,491 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:24,874 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:25,636 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:25,764 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:26,502 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:27,870 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:28,621 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:28,757 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:29,539 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:30,917 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:31,671 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:31,796 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:32,556 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:33,931 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:34,680 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:34,828 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:35,591 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:36,343 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:37,077 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:37,194 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:37,960 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:39,299 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:36:40,032 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:40,173 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:40,915 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:42,256 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:36:42,987 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:43,109 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:43,841 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:45,084 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:36:45,823 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:45,948 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:46,688 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:36:48,044 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1257 [2019-10-07 14:36:48,796 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:36:48,919 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:49,678 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:36:51,072 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:36:51,821 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:36:51,943 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:36:52,697 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:36:54,073 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:54,817 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:54,940 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:55,689 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:57,051 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:57,799 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:57,920 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:36:58,651 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:59,413 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:00,164 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:00,285 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:01,039 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:02,441 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:37:03,184 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:03,307 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:04,056 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:04,812 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:05,543 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:05,664 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:06,395 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:07,134 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:07,883 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:08,001 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:08,743 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:10,002 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1250 [2019-10-07 14:37:10,727 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:37:10,848 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:11,581 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:12,905 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1252 [2019-10-07 14:37:13,647 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:13,771 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:14,514 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:37:16,028 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1252 [2019-10-07 14:37:16,783 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:16,910 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:17,693 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:37:19,030 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:37:19,790 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:19,929 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:20,685 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:37:22,066 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:37:22,821 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:22,942 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:23,680 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:25,126 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:37:25,872 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:26,002 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:26,742 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:27,477 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:28,245 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:28,361 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:29,090 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:29,876 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:30,628 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:30,758 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:31,500 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:32,870 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:37:33,623 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:33,757 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:34,492 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:35,833 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:37:36,565 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:36,683 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:37,445 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:38,786 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:37:39,555 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:39,678 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:37:40,426 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:37:40,435 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1106 for LOIs [2019-10-07 14:37:40,923 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:37:41,433 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:37:41,553 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:42,283 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:42,810 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:43,298 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:43,416 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:44,163 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:45,072 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1116 [2019-10-07 14:37:45,572 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:45,693 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:46,423 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:46,931 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:47,424 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:47,540 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:48,285 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:48,777 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:49,274 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:49,391 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:50,127 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:50,631 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:51,124 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:37:51,239 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:37:51,960 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:37:52,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:37:52,231 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:37:52,238 INFO L168 Benchmark]: Toolchain (without parser) took 311049.20 ms. Allocated memory was 145.8 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 99.9 MB in the beginning and 905.6 MB in the end (delta: -805.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2019-10-07 14:37:52,238 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 145.8 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:37:52,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1038.41 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 99.4 MB in the beginning and 144.1 MB in the end (delta: -44.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:52,239 INFO L168 Benchmark]: Boogie Preprocessor took 210.81 ms. Allocated memory is still 203.9 MB. Free memory was 144.1 MB in the beginning and 134.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:52,239 INFO L168 Benchmark]: RCFGBuilder took 5348.28 ms. Allocated memory was 203.9 MB in the beginning and 297.3 MB in the end (delta: 93.3 MB). Free memory was 134.8 MB in the beginning and 193.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 152.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:52,239 INFO L168 Benchmark]: TraceAbstraction took 304446.50 ms. Allocated memory was 297.3 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 193.4 MB in the beginning and 905.6 MB in the end (delta: -712.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2019-10-07 14:37:52,241 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 ms. Allocated memory is still 145.8 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1038.41 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 99.4 MB in the beginning and 144.1 MB in the end (delta: -44.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 210.81 ms. Allocated memory is still 203.9 MB. Free memory was 144.1 MB in the beginning and 134.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5348.28 ms. Allocated memory was 203.9 MB in the beginning and 297.3 MB in the end (delta: 93.3 MB). Free memory was 134.8 MB in the beginning and 193.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 152.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 304446.50 ms. Allocated memory was 297.3 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 193.4 MB in the beginning and 905.6 MB in the end (delta: -712.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...