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_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:30:59,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:30:59,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:30:59,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:30:59,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:30:59,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:30:59,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:30:59,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:30:59,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:30:59,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:30:59,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:30:59,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:30:59,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:30:59,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:30:59,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:30:59,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:30:59,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:30:59,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:30:59,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:30:59,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:30:59,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:30:59,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:30:59,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:30:59,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:30:59,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:30:59,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:30:59,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:30:59,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:30:59,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:30:59,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:30:59,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:30:59,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:30:59,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:30:59,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:30:59,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:30:59,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:30:59,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:30:59,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:30:59,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:30:59,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:30:59,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:30:59,940 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 14:30:59,960 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:30:59,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:30:59,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:30:59,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:30:59,963 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:30:59,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:30:59,964 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:30:59,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:30:59,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:30:59,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:30:59,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:30:59,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:30:59,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:30:59,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:30:59,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:30:59,967 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:30:59,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:30:59,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:30:59,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:30:59,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:30:59,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:30:59,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:30:59,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:30:59,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:30:59,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:30:59,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:30:59,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:30:59,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:30:59,970 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 14:31:00,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:31:00,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:31:00,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:31:00,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:31:00,266 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:31:00,267 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2019-10-07 14:31:00,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ded191b/f30a5a3f69dc4ed4989846bb2eea396b/FLAG1a3ce004f [2019-10-07 14:31:01,048 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:31:01,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2019-10-07 14:31:01,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ded191b/f30a5a3f69dc4ed4989846bb2eea396b/FLAG1a3ce004f [2019-10-07 14:31:01,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ded191b/f30a5a3f69dc4ed4989846bb2eea396b [2019-10-07 14:31:01,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:31:01,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:31:01,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:31:01,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:31:01,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:31:01,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:31:01" (1/1) ... [2019-10-07 14:31:01,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1192ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:01, skipping insertion in model container [2019-10-07 14:31:01,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:31:01" (1/1) ... [2019-10-07 14:31:01,204 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:31:01,287 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:31:02,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:31:02,113 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:31:02,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:31:02,344 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:31:02,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02 WrapperNode [2019-10-07 14:31:02,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:31:02,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:31:02,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:31:02,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:31:02,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (1/1) ... [2019-10-07 14:31:02,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:31:02,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:31:02,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:31:02,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:31:02,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (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 14:31:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:31:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:31:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:31:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:31:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:31:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:31:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:31:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:31:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:31:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:31:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:31:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:31:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:31:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:31:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:31:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:31:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:31:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:31:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:31:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:31:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:31:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:31:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:31:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:31:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:31:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:31:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:31:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:31:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:31:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:31:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:31:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:31:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:31:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:31:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:31:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:31:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:31:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:31:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:31:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:31:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:31:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:31:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:31:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:31:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:31:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:31:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:31:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:31:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:31:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:31:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:31:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:31:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:31:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:31:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:31:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:31:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:31:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:31:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:31:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:31:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:31:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:31:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:31:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:31:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:31:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:31:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:31:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:31:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:31:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:31:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:31:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:31:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:31:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:31:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:31:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:31:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:31:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:31:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:31:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:31:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:31:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:31:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:31:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:31:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:31:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:31:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:31:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:31:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:31:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:31:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:31:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:31:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:31:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:31:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:31:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:31:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:31:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:31:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:31:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:31:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:31:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:31:07,901 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:31:07,902 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:31:07,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:31:07 BoogieIcfgContainer [2019-10-07 14:31:07,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:31:07,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:31:07,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:31:07,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:31:07,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:31:01" (1/3) ... [2019-10-07 14:31:07,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f725e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:31:07, skipping insertion in model container [2019-10-07 14:31:07,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:31:02" (2/3) ... [2019-10-07 14:31:07,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f725e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:31:07, skipping insertion in model container [2019-10-07 14:31:07,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:31:07" (3/3) ... [2019-10-07 14:31:07,914 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c [2019-10-07 14:31:07,923 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:31:07,933 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:31:07,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:31:07,990 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:31:07,990 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:31:07,990 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:31:07,990 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:31:07,990 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:31:07,990 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:31:07,991 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:31:07,991 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:31:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states. [2019-10-07 14:31:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:31:08,038 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:08,040 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:31:08,042 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:08,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:08,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1816173478, now seen corresponding path program 1 times [2019-10-07 14:31:08,057 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:08,057 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:08,057 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:08,058 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:31:08,838 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:08,839 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:08,839 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 14:31:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:09,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:31:09,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:31:09,558 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:31:09,677 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:31:09,677 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 13 [2019-10-07 14:31:09,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:31:09,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:31:09,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:31:09,701 INFO L87 Difference]: Start difference. First operand 642 states. Second operand 4 states. [2019-10-07 14:31:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:11,553 INFO L93 Difference]: Finished difference Result 1860 states and 2815 transitions. [2019-10-07 14:31:11,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:31:11,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 81 [2019-10-07 14:31:11,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:11,590 INFO L225 Difference]: With dead ends: 1860 [2019-10-07 14:31:11,591 INFO L226 Difference]: Without dead ends: 1346 [2019-10-07 14:31:11,602 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:31:11,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2019-10-07 14:31:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1305. [2019-10-07 14:31:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2019-10-07 14:31:11,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1949 transitions. [2019-10-07 14:31:11,808 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1949 transitions. Word has length 81 [2019-10-07 14:31:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:11,809 INFO L462 AbstractCegarLoop]: Abstraction has 1305 states and 1949 transitions. [2019-10-07 14:31:11,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:31:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1949 transitions. [2019-10-07 14:31:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:31:11,822 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:11,822 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:31:12,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:12,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:12,024 INFO L82 PathProgramCache]: Analyzing trace with hash 52336622, now seen corresponding path program 1 times [2019-10-07 14:31:12,024 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:12,024 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:12,025 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:12,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:31:12,414 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:12,415 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:31:12,415 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:31:12,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:31:12,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:31:12,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:31:12,417 INFO L87 Difference]: Start difference. First operand 1305 states and 1949 transitions. Second operand 10 states. [2019-10-07 14:31:13,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:13,444 INFO L93 Difference]: Finished difference Result 2584 states and 3891 transitions. [2019-10-07 14:31:13,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:31:13,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-10-07 14:31:13,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:13,465 INFO L225 Difference]: With dead ends: 2584 [2019-10-07 14:31:13,466 INFO L226 Difference]: Without dead ends: 2581 [2019-10-07 14:31:13,469 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:31:13,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2019-10-07 14:31:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2540. [2019-10-07 14:31:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2019-10-07 14:31:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3839 transitions. [2019-10-07 14:31:13,599 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3839 transitions. Word has length 81 [2019-10-07 14:31:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:13,600 INFO L462 AbstractCegarLoop]: Abstraction has 2540 states and 3839 transitions. [2019-10-07 14:31:13,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:31:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3839 transitions. [2019-10-07 14:31:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 14:31:13,602 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:13,602 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:31:13,603 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:13,603 INFO L82 PathProgramCache]: Analyzing trace with hash 829375675, now seen corresponding path program 1 times [2019-10-07 14:31:13,603 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:13,603 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:13,604 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:13,604 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:31:13,817 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:13,817 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:13,817 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 14:31:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:14,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 14:31:14,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:31:14,551 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:14,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:31:14,836 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:31:14,837 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [11] total 20 [2019-10-07 14:31:14,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:31:14,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:31:14,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:31:14,839 INFO L87 Difference]: Start difference. First operand 2540 states and 3839 transitions. Second operand 11 states. [2019-10-07 14:31:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:19,534 INFO L93 Difference]: Finished difference Result 7160 states and 10976 transitions. [2019-10-07 14:31:19,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:31:19,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2019-10-07 14:31:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:19,593 INFO L225 Difference]: With dead ends: 7160 [2019-10-07 14:31:19,593 INFO L226 Difference]: Without dead ends: 4651 [2019-10-07 14:31:19,615 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:31:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2019-10-07 14:31:19,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4628. [2019-10-07 14:31:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4628 states. [2019-10-07 14:31:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 6827 transitions. [2019-10-07 14:31:19,944 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 6827 transitions. Word has length 82 [2019-10-07 14:31:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:19,945 INFO L462 AbstractCegarLoop]: Abstraction has 4628 states and 6827 transitions. [2019-10-07 14:31:19,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:31:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 6827 transitions. [2019-10-07 14:31:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:31:19,949 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:19,950 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:31:20,163 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:20,164 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:20,164 INFO L82 PathProgramCache]: Analyzing trace with hash 592414164, now seen corresponding path program 1 times [2019-10-07 14:31:20,165 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:20,165 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:20,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:20,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:20,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:31:20,384 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:20,385 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:20,385 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 14:31:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:21,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:31:21,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:31:21,067 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:31:21,157 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:31:21,157 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2019-10-07 14:31:21,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:31:21,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:31:21,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:31:21,160 INFO L87 Difference]: Start difference. First operand 4628 states and 6827 transitions. Second operand 3 states. [2019-10-07 14:31:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:21,386 INFO L93 Difference]: Finished difference Result 10407 states and 15488 transitions. [2019-10-07 14:31:21,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:31:21,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-10-07 14:31:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:21,428 INFO L225 Difference]: With dead ends: 10407 [2019-10-07 14:31:21,428 INFO L226 Difference]: Without dead ends: 5810 [2019-10-07 14:31:21,453 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:31:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5810 states. [2019-10-07 14:31:21,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 4558. [2019-10-07 14:31:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4558 states. [2019-10-07 14:31:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 6708 transitions. [2019-10-07 14:31:21,772 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 6708 transitions. Word has length 81 [2019-10-07 14:31:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:21,774 INFO L462 AbstractCegarLoop]: Abstraction has 4558 states and 6708 transitions. [2019-10-07 14:31:21,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:31:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 6708 transitions. [2019-10-07 14:31:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 14:31:21,791 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:21,793 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:22,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:22,002 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash -220975135, now seen corresponding path program 1 times [2019-10-07 14:31:22,004 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:22,004 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:22,004 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:22,004 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:22,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:31:22,442 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:22,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:22,443 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 14:31:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:23,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-07 14:31:23,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:31:23,256 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:23,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:31:23,769 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:31:23,770 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 9] total 25 [2019-10-07 14:31:23,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:31:23,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:31:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:31:23,773 INFO L87 Difference]: Start difference. First operand 4558 states and 6708 transitions. Second operand 9 states. [2019-10-07 14:31:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:30,976 INFO L93 Difference]: Finished difference Result 11245 states and 16637 transitions. [2019-10-07 14:31:30,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 14:31:30,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2019-10-07 14:31:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:31,020 INFO L225 Difference]: With dead ends: 11245 [2019-10-07 14:31:31,021 INFO L226 Difference]: Without dead ends: 6718 [2019-10-07 14:31:31,043 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 312 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=1019, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:31:31,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2019-10-07 14:31:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 6554. [2019-10-07 14:31:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6554 states. [2019-10-07 14:31:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6554 states to 6554 states and 9686 transitions. [2019-10-07 14:31:31,477 INFO L78 Accepts]: Start accepts. Automaton has 6554 states and 9686 transitions. Word has length 162 [2019-10-07 14:31:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:31,478 INFO L462 AbstractCegarLoop]: Abstraction has 6554 states and 9686 transitions. [2019-10-07 14:31:31,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:31:31,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6554 states and 9686 transitions. [2019-10-07 14:31:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:31:31,483 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:31,484 INFO L385 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:31:31,700 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:31,700 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:31,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:31,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1621859262, now seen corresponding path program 1 times [2019-10-07 14:31:31,701 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:31,701 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:31,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:31,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-10-07 14:31:31,902 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:31,902 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:31,902 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 14:31:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:32,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 3871 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:31:32,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-07 14:31:32,678 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-10-07 14:31:32,869 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:31:32,869 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 4 [2019-10-07 14:31:32,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:31:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:31:32,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:31:32,872 INFO L87 Difference]: Start difference. First operand 6554 states and 9686 transitions. Second operand 3 states. [2019-10-07 14:31:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:33,513 INFO L93 Difference]: Finished difference Result 15609 states and 23347 transitions. [2019-10-07 14:31:33,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:31:33,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-07 14:31:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:33,580 INFO L225 Difference]: With dead ends: 15609 [2019-10-07 14:31:33,581 INFO L226 Difference]: Without dead ends: 9086 [2019-10-07 14:31:33,610 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 393 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:31:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9086 states. [2019-10-07 14:31:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9086 to 8963. [2019-10-07 14:31:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8963 states. [2019-10-07 14:31:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8963 states to 8963 states and 13275 transitions. [2019-10-07 14:31:34,028 INFO L78 Accepts]: Start accepts. Automaton has 8963 states and 13275 transitions. Word has length 198 [2019-10-07 14:31:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:34,029 INFO L462 AbstractCegarLoop]: Abstraction has 8963 states and 13275 transitions. [2019-10-07 14:31:34,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:31:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8963 states and 13275 transitions. [2019-10-07 14:31:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-07 14:31:34,033 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:34,034 INFO L385 BasicCegarLoop]: trace histogram [6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:34,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:34,243 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:34,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:34,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2108847139, now seen corresponding path program 1 times [2019-10-07 14:31:34,244 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:34,244 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:34,244 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:34,245 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 24 proven. 19 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-07 14:31:34,498 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:34,498 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:34,499 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 14:31:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:35,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:31:35,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-10-07 14:31:35,578 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:35,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:35,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-07 14:31:35,884 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:31:35,884 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 5] total 17 [2019-10-07 14:31:35,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:31:35,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:31:35,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:31:35,889 INFO L87 Difference]: Start difference. First operand 8963 states and 13275 transitions. Second operand 7 states. [2019-10-07 14:31:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:41,534 INFO L93 Difference]: Finished difference Result 37329 states and 56594 transitions. [2019-10-07 14:31:41,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:31:41,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-10-07 14:31:41,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:41,857 INFO L225 Difference]: With dead ends: 37329 [2019-10-07 14:31:41,857 INFO L226 Difference]: Without dead ends: 28399 [2019-10-07 14:31:41,893 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:31:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28399 states. [2019-10-07 14:31:43,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28399 to 25584. [2019-10-07 14:31:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25584 states. [2019-10-07 14:31:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25584 states to 25584 states and 38633 transitions. [2019-10-07 14:31:43,223 INFO L78 Accepts]: Start accepts. Automaton has 25584 states and 38633 transitions. Word has length 209 [2019-10-07 14:31:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:43,224 INFO L462 AbstractCegarLoop]: Abstraction has 25584 states and 38633 transitions. [2019-10-07 14:31:43,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:31:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 25584 states and 38633 transitions. [2019-10-07 14:31:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:31:43,227 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:43,228 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:43,437 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:43,438 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:43,438 INFO L82 PathProgramCache]: Analyzing trace with hash -2036417947, now seen corresponding path program 1 times [2019-10-07 14:31:43,438 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:43,438 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:43,439 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:43,439 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:31:43,642 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:43,642 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:31:43,643 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:31:43,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:31:43,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:31:43,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:31:43,644 INFO L87 Difference]: Start difference. First operand 25584 states and 38633 transitions. Second operand 7 states. [2019-10-07 14:31:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:49,130 INFO L93 Difference]: Finished difference Result 80895 states and 126902 transitions. [2019-10-07 14:31:49,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:31:49,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2019-10-07 14:31:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:49,480 INFO L225 Difference]: With dead ends: 80895 [2019-10-07 14:31:49,480 INFO L226 Difference]: Without dead ends: 55342 [2019-10-07 14:31:49,610 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:31:49,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55342 states. [2019-10-07 14:31:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55342 to 54799. [2019-10-07 14:31:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54799 states. [2019-10-07 14:31:52,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54799 states to 54799 states and 84658 transitions. [2019-10-07 14:31:52,451 INFO L78 Accepts]: Start accepts. Automaton has 54799 states and 84658 transitions. Word has length 129 [2019-10-07 14:31:52,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:52,452 INFO L462 AbstractCegarLoop]: Abstraction has 54799 states and 84658 transitions. [2019-10-07 14:31:52,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:31:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 54799 states and 84658 transitions. [2019-10-07 14:31:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:31:52,458 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:52,459 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:52,459 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:52,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:52,459 INFO L82 PathProgramCache]: Analyzing trace with hash 226793804, now seen corresponding path program 1 times [2019-10-07 14:31:52,459 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:52,460 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:52,460 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:52,460 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:52,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 14:31:52,656 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:52,656 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:31:52,656 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:31:52,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:31:52,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:31:52,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:31:52,658 INFO L87 Difference]: Start difference. First operand 54799 states and 84658 transitions. Second operand 10 states. [2019-10-07 14:32:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:01,261 INFO L93 Difference]: Finished difference Result 193694 states and 315387 transitions. [2019-10-07 14:32:01,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 14:32:01,261 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-07 14:32:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:02,044 INFO L225 Difference]: With dead ends: 193694 [2019-10-07 14:32:02,044 INFO L226 Difference]: Without dead ends: 138926 [2019-10-07 14:32:02,228 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:32:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138926 states. [2019-10-07 14:32:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138926 to 137230. [2019-10-07 14:32:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137230 states. [2019-10-07 14:32:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137230 states to 137230 states and 219452 transitions. [2019-10-07 14:32:10,259 INFO L78 Accepts]: Start accepts. Automaton has 137230 states and 219452 transitions. Word has length 135 [2019-10-07 14:32:10,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:10,260 INFO L462 AbstractCegarLoop]: Abstraction has 137230 states and 219452 transitions. [2019-10-07 14:32:10,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:32:10,260 INFO L276 IsEmpty]: Start isEmpty. Operand 137230 states and 219452 transitions. [2019-10-07 14:32:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:32:10,264 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:10,265 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:10,265 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash -747345303, now seen corresponding path program 1 times [2019-10-07 14:32:10,265 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:10,266 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:10,266 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:10,266 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:32:10,502 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:10,502 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:32:10,502 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 14:32:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:14,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 14:32:14,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:32:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 14:32:14,446 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:32:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:32:14,789 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:32:14,818 INFO L162 IcfgInterpreter]: Started Sifa with 126 locations of interest [2019-10-07 14:32:14,818 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:32:14,825 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:32:14,831 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:32:14,832 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:33:02,365 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2019-10-07 14:33:07,528 WARN L191 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:33:07,964 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:33:08,380 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:33:08,743 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:33:09,308 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:09,846 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:10,333 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:10,908 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:11,936 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1050 DAG size of output: 1048 [2019-10-07 14:33:12,412 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:12,955 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:13,451 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:13,933 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:14,451 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:33:14,466 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:33:14,737 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:33:14,846 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:33:15,202 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:33:15,205 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1096 for LOIs [2019-10-07 14:33:15,689 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:16,186 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:16,305 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:17,060 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:17,543 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:18,002 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:18,123 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:18,919 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:19,418 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:19,884 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:20,136 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:20,959 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:21,854 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1096 [2019-10-07 14:33:22,336 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:22,539 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:23,332 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:23,814 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:24,316 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:24,444 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:25,218 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:25,696 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:26,168 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:26,286 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:27,082 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:27,555 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:28,020 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:28,136 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:28,908 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:29,390 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:29,871 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:29,986 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:30,747 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:31,213 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:31,680 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:31,803 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:32,585 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:33,055 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:33,523 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:33,639 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:34,417 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:34,898 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:35,379 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:35,495 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:36,276 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:36,744 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:37,218 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:37,334 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:38,121 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:38,594 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:39,061 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1096 [2019-10-07 14:33:39,180 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:39,947 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:41,260 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:42,023 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:42,145 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:42,904 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:44,917 WARN L191 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:33:45,676 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:45,800 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:46,559 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:47,325 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:48,085 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:48,200 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:33:48,962 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:33:49,780 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:50,563 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:50,683 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:33:51,443 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:52,507 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:53,279 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:53,403 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:33:54,167 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:54,928 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:55,704 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:55,820 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:33:56,599 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:57,362 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:33:58,123 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:33:58,247 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:33:59,018 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:33:59,790 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:00,558 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:00,688 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:01,471 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:02,267 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:03,034 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:03,155 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:03,918 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:05,268 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:34:06,054 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:06,187 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:06,961 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:07,750 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:08,519 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:08,636 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:09,408 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:10,821 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:11,587 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:11,733 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:12,500 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:13,887 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:14,650 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:14,773 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:15,543 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:16,310 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:17,073 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:17,192 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:17,953 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:19,363 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:34:20,153 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:20,276 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:21,049 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:22,360 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:34:23,128 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:34:23,255 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:24,028 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:25,323 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:34:26,103 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:34:26,221 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:26,991 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:28,369 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:34:29,147 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:29,296 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:30,082 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:31,476 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:34:32,251 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:32,378 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:33,162 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:34:34,583 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:35,369 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:35,491 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:36,266 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:37,655 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:38,445 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:38,574 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:39,349 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:40,129 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:40,904 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:41,022 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:41,814 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:43,443 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:44,238 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:44,362 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:45,143 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:46,577 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:34:47,366 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:47,494 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:48,271 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:49,052 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:49,829 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:49,945 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:34:50,730 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:34:52,164 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:34:52,958 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:53,082 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:53,865 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:55,270 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:34:56,067 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:56,194 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:56,985 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:57,767 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:58,554 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:34:58,673 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:34:59,464 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:00,772 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:01,594 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:01,727 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:02,522 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:03,920 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:04,702 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:04,824 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:05,594 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:06,991 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:07,777 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:07,898 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:08,687 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:09,468 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:10,257 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:10,374 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:11,149 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:12,474 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:13,383 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:13,524 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:14,304 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:15,722 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:35:16,516 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:16,640 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:17,427 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:18,726 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:19,524 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:19,650 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:20,454 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:21,852 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:22,650 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:22,790 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:23,591 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:24,899 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:35:25,702 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:25,826 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:26,610 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:27,939 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:35:28,737 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:28,858 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:29,638 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:30,923 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:35:31,721 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:31,844 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:32,651 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:34,081 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:34,859 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:34,980 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:35,753 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:37,137 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:37,918 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:38,039 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:38,811 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:39,592 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:40,380 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:40,494 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:41,265 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:42,599 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:43,392 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:43,514 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:44,296 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:45,685 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:35:46,477 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:46,598 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:47,369 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:48,685 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:49,449 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:49,565 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:50,330 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:51,613 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:35:52,375 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:52,499 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:53,265 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:54,623 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:35:55,381 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:55,516 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:35:56,276 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:57,645 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:58,413 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:58,600 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:35:59,351 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:00,713 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:01,470 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:01,589 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:02,355 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:03,739 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:04,493 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:04,619 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:05,377 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:06,738 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:07,496 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:07,633 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:08,392 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:09,150 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:09,910 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:10,025 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:10,778 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:11,569 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:12,341 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:12,462 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:36:13,221 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:14,587 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:36:15,355 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:15,476 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:36:16,233 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:16,239 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1118 for LOIs [2019-10-07 14:36:16,731 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:36:17,224 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:36:17,339 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:18,092 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:18,102 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1066 for LOIs [2019-10-07 14:36:18,515 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 1066 [2019-10-07 14:36:18,923 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 1066 [2019-10-07 14:36:19,046 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:36:19,798 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:20,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:20,071 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: ε 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: ε 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.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 14:36:20,078 INFO L168 Benchmark]: Toolchain (without parser) took 318888.35 ms. Allocated memory was 138.9 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 99.5 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,079 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1153.28 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 141.4 MB in the end (delta: -42.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,080 INFO L168 Benchmark]: Boogie Preprocessor took 204.35 ms. Allocated memory is still 203.9 MB. Free memory was 141.4 MB in the beginning and 131.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,081 INFO L168 Benchmark]: RCFGBuilder took 5355.40 ms. Allocated memory was 203.9 MB in the beginning and 294.6 MB in the end (delta: 90.7 MB). Free memory was 131.6 MB in the beginning and 166.8 MB in the end (delta: -35.2 MB). Peak memory consumption was 146.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,081 INFO L168 Benchmark]: TraceAbstraction took 312170.18 ms. Allocated memory was 294.6 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 166.8 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 14:36:20,086 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1153.28 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 141.4 MB in the end (delta: -42.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 204.35 ms. Allocated memory is still 203.9 MB. Free memory was 141.4 MB in the beginning and 131.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5355.40 ms. Allocated memory was 203.9 MB in the beginning and 294.6 MB in the end (delta: 90.7 MB). Free memory was 131.6 MB in the beginning and 166.8 MB in the end (delta: -35.2 MB). Peak memory consumption was 146.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 312170.18 ms. Allocated memory was 294.6 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 166.8 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.9 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: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...