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_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:07:08,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:07:08,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:07:08,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:07:08,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:07:08,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:07:08,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:07:08,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:07:08,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:07:08,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:07:08,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:07:08,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:07:08,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:07:08,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:07:08,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:07:08,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:07:08,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:07:08,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:07:08,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:07:08,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:07:08,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:07:08,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:07:08,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:07:08,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:07:08,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:07:08,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:07:08,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:07:08,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:07:08,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:07:08,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:07:08,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:07:08,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:07:08,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:07:08,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:07:08,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:07:08,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:07:08,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:07:08,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:07:08,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:07:08,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:07:08,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:07:08,160 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 14:07:08,195 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:07:08,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:07:08,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:07:08,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:07:08,200 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:07:08,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:07:08,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:07:08,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:07:08,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:07:08,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:07:08,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:07:08,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:07:08,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:07:08,203 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:07:08,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:07:08,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:07:08,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:07:08,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:07:08,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:07:08,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:07:08,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:07:08,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:07:08,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:07:08,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:07:08,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:07:08,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:07:08,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:07:08,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:07:08,208 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 14:07:08,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:07:08,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:07:08,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:07:08,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:07:08,564 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:07:08,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2019-10-07 14:07:08,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca94842e/88a16ab3b2f54e5abb688e71a39ceda7/FLAGf20fffb31 [2019-10-07 14:07:09,332 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:07:09,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2019-10-07 14:07:09,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca94842e/88a16ab3b2f54e5abb688e71a39ceda7/FLAGf20fffb31 [2019-10-07 14:07:09,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca94842e/88a16ab3b2f54e5abb688e71a39ceda7 [2019-10-07 14:07:09,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:07:09,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:07:09,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:07:09,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:07:09,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:07:09,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:07:09" (1/1) ... [2019-10-07 14:07:09,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b70ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:09, skipping insertion in model container [2019-10-07 14:07:09,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:07:09" (1/1) ... [2019-10-07 14:07:09,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:07:09,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:07:10,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:07:10,390 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:07:10,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:07:10,626 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:07:10,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10 WrapperNode [2019-10-07 14:07:10,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:07:10,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:07:10,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:07:10,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:07:10,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... [2019-10-07 14:07:10,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:07:10,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:07:10,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:07:10,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:07:10,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:07:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:07:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:07:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:07:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:07:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:07:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:07:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:07:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:07:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:07:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:07:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:07:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:07:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:07:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:07:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:07:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:07:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:07:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:07:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:07:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:07:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:07:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:07:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:07:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:07:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:07:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:07:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:07:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:07:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:07:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:07:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:07:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:07:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:07:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:07:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:07:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:07:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:07:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:07:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:07:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:07:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:07:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:07:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:07:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:07:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:07:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:07:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:07:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:07:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:07:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:07:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:07:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:07:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:07:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:07:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:07:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:07:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:07:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:07:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:07:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:07:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:07:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:07:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:07:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:07:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:07:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:07:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:07:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:07:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:07:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:07:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:07:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:07:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:07:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:07:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:07:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:07:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:07:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:07:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:07:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:07:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:07:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:07:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:07:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:07:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:07:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:07:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:07:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:07:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:07:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:07:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:07:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:07:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:07:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:07:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:07:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:07:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:07:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:07:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:07:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:07:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:07:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:07:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:07:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:07:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:07:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:07:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:07:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:07:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:07:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:07:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:07:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:07:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:07:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:07:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:07:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:07:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:07:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:07:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:07:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:07:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:07:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:07:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:07:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:07:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:07:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:07:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:07:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:07:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:07:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:07:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:07:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:07:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:07:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:07:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:07:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:07:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:07:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:07:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:07:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:07:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:07:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:07:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:07:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:07:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:07:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:07:16,260 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:07:16,261 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:07:16,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:07:16 BoogieIcfgContainer [2019-10-07 14:07:16,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:07:16,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:07:16,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:07:16,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:07:16,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:07:09" (1/3) ... [2019-10-07 14:07:16,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32812c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:07:16, skipping insertion in model container [2019-10-07 14:07:16,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:07:10" (2/3) ... [2019-10-07 14:07:16,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32812c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:07:16, skipping insertion in model container [2019-10-07 14:07:16,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:07:16" (3/3) ... [2019-10-07 14:07:16,271 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.c [2019-10-07 14:07:16,281 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:07:16,290 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:07:16,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:07:16,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:07:16,333 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:07:16,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:07:16,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:07:16,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:07:16,333 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:07:16,333 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:07:16,334 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:07:16,367 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states. [2019-10-07 14:07:16,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:07:16,395 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:16,396 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:07:16,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:16,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1489499019, now seen corresponding path program 1 times [2019-10-07 14:07:16,416 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:16,416 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:16,417 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:16,417 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:17,149 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 14:07:17,149 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:17,150 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:17,150 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:07:17,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:07:17,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:07:17,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:07:17,172 INFO L87 Difference]: Start difference. First operand 568 states. Second operand 2 states. [2019-10-07 14:07:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:17,253 INFO L93 Difference]: Finished difference Result 477 states and 709 transitions. [2019-10-07 14:07:17,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:07:17,256 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-07 14:07:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:17,295 INFO L225 Difference]: With dead ends: 477 [2019-10-07 14:07:17,295 INFO L226 Difference]: Without dead ends: 443 [2019-10-07 14:07:17,302 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:07:17,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-07 14:07:17,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2019-10-07 14:07:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-07 14:07:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 658 transitions. [2019-10-07 14:07:17,466 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 658 transitions. Word has length 129 [2019-10-07 14:07:17,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:17,469 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 658 transitions. [2019-10-07 14:07:17,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:07:17,470 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 658 transitions. [2019-10-07 14:07:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:07:17,479 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:17,480 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:17,480 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:17,481 INFO L82 PathProgramCache]: Analyzing trace with hash -879383074, now seen corresponding path program 1 times [2019-10-07 14:07:17,481 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:17,481 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:17,481 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:17,481 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:17,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:17,964 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 14:07:17,964 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:17,965 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:17,965 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:07:18,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:07:18,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:07:18,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:18,038 INFO L87 Difference]: Start difference. First operand 443 states and 658 transitions. Second operand 9 states. [2019-10-07 14:07:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:23,259 INFO L93 Difference]: Finished difference Result 1368 states and 2097 transitions. [2019-10-07 14:07:23,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 14:07:23,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 130 [2019-10-07 14:07:23,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:23,270 INFO L225 Difference]: With dead ends: 1368 [2019-10-07 14:07:23,271 INFO L226 Difference]: Without dead ends: 978 [2019-10-07 14:07:23,283 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-10-07 14:07:23,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2019-10-07 14:07:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 946. [2019-10-07 14:07:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2019-10-07 14:07:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1451 transitions. [2019-10-07 14:07:23,379 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1451 transitions. Word has length 130 [2019-10-07 14:07:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:23,380 INFO L462 AbstractCegarLoop]: Abstraction has 946 states and 1451 transitions. [2019-10-07 14:07:23,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:07:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1451 transitions. [2019-10-07 14:07:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:07:23,384 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:23,385 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:23,385 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:23,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:23,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1221597036, now seen corresponding path program 1 times [2019-10-07 14:07:23,386 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:23,386 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:23,386 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,386 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:23,699 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 14:07:23,700 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:23,700 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:23,700 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:07:23,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:07:23,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:07:23,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:23,702 INFO L87 Difference]: Start difference. First operand 946 states and 1451 transitions. Second operand 7 states. [2019-10-07 14:07:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:23,812 INFO L93 Difference]: Finished difference Result 1508 states and 2329 transitions. [2019-10-07 14:07:23,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:07:23,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-07 14:07:23,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:23,823 INFO L225 Difference]: With dead ends: 1508 [2019-10-07 14:07:23,823 INFO L226 Difference]: Without dead ends: 983 [2019-10-07 14:07:23,827 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:23,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2019-10-07 14:07:23,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 967. [2019-10-07 14:07:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2019-10-07 14:07:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1481 transitions. [2019-10-07 14:07:23,900 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1481 transitions. Word has length 135 [2019-10-07 14:07:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:23,903 INFO L462 AbstractCegarLoop]: Abstraction has 967 states and 1481 transitions. [2019-10-07 14:07:23,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:07:23,903 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1481 transitions. [2019-10-07 14:07:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:07:23,912 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:23,912 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:23,912 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1927403097, now seen corresponding path program 1 times [2019-10-07 14:07:23,913 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:23,913 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:23,914 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,914 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:24,167 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 14:07:24,168 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:24,168 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:24,168 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:07:24,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:07:24,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:07:24,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:24,171 INFO L87 Difference]: Start difference. First operand 967 states and 1481 transitions. Second operand 7 states. [2019-10-07 14:07:24,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:24,265 INFO L93 Difference]: Finished difference Result 1537 states and 2367 transitions. [2019-10-07 14:07:24,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:07:24,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2019-10-07 14:07:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:24,275 INFO L225 Difference]: With dead ends: 1537 [2019-10-07 14:07:24,275 INFO L226 Difference]: Without dead ends: 998 [2019-10-07 14:07:24,278 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:24,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2019-10-07 14:07:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 970. [2019-10-07 14:07:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2019-10-07 14:07:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1484 transitions. [2019-10-07 14:07:24,341 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1484 transitions. Word has length 134 [2019-10-07 14:07:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:24,343 INFO L462 AbstractCegarLoop]: Abstraction has 970 states and 1484 transitions. [2019-10-07 14:07:24,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:07:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1484 transitions. [2019-10-07 14:07:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:07:24,349 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:24,349 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:24,349 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash -245024436, now seen corresponding path program 1 times [2019-10-07 14:07:24,350 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:24,350 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:24,351 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:24,351 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:24,655 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 14:07:24,656 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:24,656 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:24,656 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:07:24,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:07:24,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:07:24,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:24,658 INFO L87 Difference]: Start difference. First operand 970 states and 1484 transitions. Second operand 7 states. [2019-10-07 14:07:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:24,762 INFO L93 Difference]: Finished difference Result 1542 states and 2372 transitions. [2019-10-07 14:07:24,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:07:24,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-07 14:07:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:24,772 INFO L225 Difference]: With dead ends: 1542 [2019-10-07 14:07:24,772 INFO L226 Difference]: Without dead ends: 1001 [2019-10-07 14:07:24,776 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2019-10-07 14:07:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 973. [2019-10-07 14:07:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2019-10-07 14:07:24,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1487 transitions. [2019-10-07 14:07:24,836 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1487 transitions. Word has length 135 [2019-10-07 14:07:24,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:24,838 INFO L462 AbstractCegarLoop]: Abstraction has 973 states and 1487 transitions. [2019-10-07 14:07:24,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:07:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1487 transitions. [2019-10-07 14:07:24,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:07:24,842 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:24,842 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:24,842 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:24,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:24,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1247424113, now seen corresponding path program 1 times [2019-10-07 14:07:24,843 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:24,844 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:24,845 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:24,845 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:25,277 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 14:07:25,279 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:25,279 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:25,279 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:07:25,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:07:25,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:07:25,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:07:25,281 INFO L87 Difference]: Start difference. First operand 973 states and 1487 transitions. Second operand 8 states. [2019-10-07 14:07:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:28,834 INFO L93 Difference]: Finished difference Result 2075 states and 3194 transitions. [2019-10-07 14:07:28,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:07:28,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2019-10-07 14:07:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:28,847 INFO L225 Difference]: With dead ends: 2075 [2019-10-07 14:07:28,848 INFO L226 Difference]: Without dead ends: 1407 [2019-10-07 14:07:28,853 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-07 14:07:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1357. [2019-10-07 14:07:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2019-10-07 14:07:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2037 transitions. [2019-10-07 14:07:28,933 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2037 transitions. Word has length 138 [2019-10-07 14:07:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:28,934 INFO L462 AbstractCegarLoop]: Abstraction has 1357 states and 2037 transitions. [2019-10-07 14:07:28,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:07:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2037 transitions. [2019-10-07 14:07:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:07:28,937 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:28,938 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:28,938 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:28,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:28,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1987904052, now seen corresponding path program 1 times [2019-10-07 14:07:28,939 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:28,939 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:28,939 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:28,939 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:29,138 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 14:07:29,139 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:29,139 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:29,139 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:07:29,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:07:29,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:07:29,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:07:29,141 INFO L87 Difference]: Start difference. First operand 1357 states and 2037 transitions. Second operand 6 states. [2019-10-07 14:07:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:33,131 INFO L93 Difference]: Finished difference Result 5384 states and 8416 transitions. [2019-10-07 14:07:33,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:07:33,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-10-07 14:07:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:33,167 INFO L225 Difference]: With dead ends: 5384 [2019-10-07 14:07:33,167 INFO L226 Difference]: Without dead ends: 4081 [2019-10-07 14:07:33,178 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:33,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2019-10-07 14:07:33,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 3796. [2019-10-07 14:07:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3796 states. [2019-10-07 14:07:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5842 transitions. [2019-10-07 14:07:33,394 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5842 transitions. Word has length 142 [2019-10-07 14:07:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:33,395 INFO L462 AbstractCegarLoop]: Abstraction has 3796 states and 5842 transitions. [2019-10-07 14:07:33,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:07:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5842 transitions. [2019-10-07 14:07:33,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:07:33,399 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:33,399 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:33,399 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:33,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:33,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1850121621, now seen corresponding path program 1 times [2019-10-07 14:07:33,400 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:33,400 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:33,400 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:33,401 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:33,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:33,641 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 14:07:33,641 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:33,642 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:33,642 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:07:33,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:07:33,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:07:33,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:07:33,644 INFO L87 Difference]: Start difference. First operand 3796 states and 5842 transitions. Second operand 7 states. [2019-10-07 14:07:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:37,385 INFO L93 Difference]: Finished difference Result 6788 states and 10487 transitions. [2019-10-07 14:07:37,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:07:37,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-10-07 14:07:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:37,419 INFO L225 Difference]: With dead ends: 6788 [2019-10-07 14:07:37,419 INFO L226 Difference]: Without dead ends: 3966 [2019-10-07 14:07:37,439 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:07:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2019-10-07 14:07:37,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3880. [2019-10-07 14:07:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3880 states. [2019-10-07 14:07:37,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5948 transitions. [2019-10-07 14:07:37,643 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5948 transitions. Word has length 143 [2019-10-07 14:07:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:37,644 INFO L462 AbstractCegarLoop]: Abstraction has 3880 states and 5948 transitions. [2019-10-07 14:07:37,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:07:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5948 transitions. [2019-10-07 14:07:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:07:37,649 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:37,649 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:37,650 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:37,650 INFO L82 PathProgramCache]: Analyzing trace with hash 514592771, now seen corresponding path program 1 times [2019-10-07 14:07:37,650 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:37,651 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:37,651 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:37,651 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:37,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:07:38,071 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:38,072 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:38,072 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:07:38,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:07:38,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:07:38,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:38,073 INFO L87 Difference]: Start difference. First operand 3880 states and 5948 transitions. Second operand 9 states. [2019-10-07 14:07:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:45,113 INFO L93 Difference]: Finished difference Result 13762 states and 21436 transitions. [2019-10-07 14:07:45,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:07:45,113 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 147 [2019-10-07 14:07:45,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:45,207 INFO L225 Difference]: With dead ends: 13762 [2019-10-07 14:07:45,207 INFO L226 Difference]: Without dead ends: 9935 [2019-10-07 14:07:45,236 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:07:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2019-10-07 14:07:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 9523. [2019-10-07 14:07:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9523 states. [2019-10-07 14:07:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9523 states to 9523 states and 14827 transitions. [2019-10-07 14:07:45,965 INFO L78 Accepts]: Start accepts. Automaton has 9523 states and 14827 transitions. Word has length 147 [2019-10-07 14:07:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:45,966 INFO L462 AbstractCegarLoop]: Abstraction has 9523 states and 14827 transitions. [2019-10-07 14:07:45,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:07:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9523 states and 14827 transitions. [2019-10-07 14:07:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:07:45,972 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:45,972 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:45,975 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:45,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:45,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1079679169, now seen corresponding path program 1 times [2019-10-07 14:07:45,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:45,976 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:45,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:45,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:07:46,291 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:46,291 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:46,292 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:07:46,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:07:46,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:07:46,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:07:46,294 INFO L87 Difference]: Start difference. First operand 9523 states and 14827 transitions. Second operand 10 states. [2019-10-07 14:07:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:46,714 INFO L93 Difference]: Finished difference Result 18523 states and 29104 transitions. [2019-10-07 14:07:46,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:07:46,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2019-10-07 14:07:46,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:46,785 INFO L225 Difference]: With dead ends: 18523 [2019-10-07 14:07:46,785 INFO L226 Difference]: Without dead ends: 10807 [2019-10-07 14:07:46,835 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:07:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2019-10-07 14:07:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 10255. [2019-10-07 14:07:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10255 states. [2019-10-07 14:07:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10255 states to 10255 states and 16027 transitions. [2019-10-07 14:07:48,312 INFO L78 Accepts]: Start accepts. Automaton has 10255 states and 16027 transitions. Word has length 149 [2019-10-07 14:07:48,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:48,312 INFO L462 AbstractCegarLoop]: Abstraction has 10255 states and 16027 transitions. [2019-10-07 14:07:48,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:07:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10255 states and 16027 transitions. [2019-10-07 14:07:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:07:48,318 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:48,318 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:48,319 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:48,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:48,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2061363688, now seen corresponding path program 1 times [2019-10-07 14:07:48,319 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:48,320 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:48,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:48,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 14:07:48,872 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:48,872 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:07:48,873 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 14:07:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:49,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:07:49,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:07:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:07:49,647 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:07:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:07:50,136 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:07:50,137 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [26] total 33 [2019-10-07 14:07:50,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:07:50,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:07:50,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:07:50,140 INFO L87 Difference]: Start difference. First operand 10255 states and 16027 transitions. Second operand 9 states. [2019-10-07 14:07:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:51,920 INFO L93 Difference]: Finished difference Result 10472 states and 16474 transitions. [2019-10-07 14:07:51,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:07:51,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2019-10-07 14:07:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:52,030 INFO L225 Difference]: With dead ends: 10472 [2019-10-07 14:07:52,032 INFO L226 Difference]: Without dead ends: 10455 [2019-10-07 14:07:52,042 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:07:52,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2019-10-07 14:07:52,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 10333. [2019-10-07 14:07:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10333 states. [2019-10-07 14:07:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10333 states to 10333 states and 16155 transitions. [2019-10-07 14:07:52,806 INFO L78 Accepts]: Start accepts. Automaton has 10333 states and 16155 transitions. Word has length 154 [2019-10-07 14:07:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:52,807 INFO L462 AbstractCegarLoop]: Abstraction has 10333 states and 16155 transitions. [2019-10-07 14:07:52,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:07:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 10333 states and 16155 transitions. [2019-10-07 14:07:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 14:07:52,812 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:52,813 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:53,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:07:53,022 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:53,023 INFO L82 PathProgramCache]: Analyzing trace with hash -839666091, now seen corresponding path program 1 times [2019-10-07 14:07:53,023 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:53,023 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:53,023 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:53,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:53,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:07:53,250 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:53,250 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:53,250 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:07:53,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:07:53,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:07:53,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:07:53,252 INFO L87 Difference]: Start difference. First operand 10333 states and 16155 transitions. Second operand 8 states. [2019-10-07 14:07:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:53,741 INFO L93 Difference]: Finished difference Result 10350 states and 16175 transitions. [2019-10-07 14:07:53,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:07:53,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 159 [2019-10-07 14:07:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:53,828 INFO L225 Difference]: With dead ends: 10350 [2019-10-07 14:07:53,828 INFO L226 Difference]: Without dead ends: 10333 [2019-10-07 14:07:53,837 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10333 states. [2019-10-07 14:07:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10333 to 10333. [2019-10-07 14:07:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10333 states. [2019-10-07 14:07:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10333 states to 10333 states and 16132 transitions. [2019-10-07 14:07:54,386 INFO L78 Accepts]: Start accepts. Automaton has 10333 states and 16132 transitions. Word has length 159 [2019-10-07 14:07:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:54,386 INFO L462 AbstractCegarLoop]: Abstraction has 10333 states and 16132 transitions. [2019-10-07 14:07:54,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:07:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 10333 states and 16132 transitions. [2019-10-07 14:07:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:07:54,392 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:54,392 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:07:54,393 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1899436488, now seen corresponding path program 1 times [2019-10-07 14:07:54,393 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:54,394 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:54,394 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:54,394 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:54,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 14:07:54,928 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:54,928 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:07:54,929 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 14:07:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:55,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:07:55,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:07:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:07:55,716 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:07:55,965 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-10-07 14:07:56,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:07:56,501 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:07:56,502 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [26] total 33 [2019-10-07 14:07:56,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:07:56,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:07:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:07:56,503 INFO L87 Difference]: Start difference. First operand 10333 states and 16132 transitions. Second operand 9 states. [2019-10-07 14:07:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:56,878 INFO L93 Difference]: Finished difference Result 10412 states and 16242 transitions. [2019-10-07 14:07:56,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:07:56,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 174 [2019-10-07 14:07:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:56,947 INFO L225 Difference]: With dead ends: 10412 [2019-10-07 14:07:56,948 INFO L226 Difference]: Without dead ends: 10395 [2019-10-07 14:07:56,958 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2019-10-07 14:07:56,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10395 states. [2019-10-07 14:07:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10395 to 10393. [2019-10-07 14:07:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10393 states. [2019-10-07 14:07:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 16194 transitions. [2019-10-07 14:07:57,510 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 16194 transitions. Word has length 174 [2019-10-07 14:07:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:57,511 INFO L462 AbstractCegarLoop]: Abstraction has 10393 states and 16194 transitions. [2019-10-07 14:07:57,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:07:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 16194 transitions. [2019-10-07 14:07:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-07 14:07:57,522 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:57,523 INFO L385 BasicCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:57,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:07:57,731 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:57,732 INFO L82 PathProgramCache]: Analyzing trace with hash 634823640, now seen corresponding path program 1 times [2019-10-07 14:07:57,733 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:57,733 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:57,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:57,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-07 14:07:57,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:57,897 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:57,897 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:07:57,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:07:57,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:07:57,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:07:57,899 INFO L87 Difference]: Start difference. First operand 10393 states and 16194 transitions. Second operand 4 states. [2019-10-07 14:07:58,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:58,683 INFO L93 Difference]: Finished difference Result 19655 states and 31511 transitions. [2019-10-07 14:07:58,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:07:58,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2019-10-07 14:07:58,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:58,757 INFO L225 Difference]: With dead ends: 19655 [2019-10-07 14:07:58,757 INFO L226 Difference]: Without dead ends: 11401 [2019-10-07 14:07:58,796 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:07:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11401 states. [2019-10-07 14:07:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11401 to 11401. [2019-10-07 14:07:59,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11401 states. [2019-10-07 14:07:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11401 states to 11401 states and 17917 transitions. [2019-10-07 14:07:59,455 INFO L78 Accepts]: Start accepts. Automaton has 11401 states and 17917 transitions. Word has length 197 [2019-10-07 14:07:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:59,456 INFO L462 AbstractCegarLoop]: Abstraction has 11401 states and 17917 transitions. [2019-10-07 14:07:59,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:07:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11401 states and 17917 transitions. [2019-10-07 14:07:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 14:07:59,466 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:59,466 INFO L385 BasicCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:59,466 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:59,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:59,467 INFO L82 PathProgramCache]: Analyzing trace with hash 774006727, now seen corresponding path program 1 times [2019-10-07 14:07:59,467 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:59,467 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:59,468 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:59,468 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 14:07:59,739 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:59,739 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:07:59,739 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 14:08:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:00,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 3396 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:08:00,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:08:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:08:00,633 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:08:01,211 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:01,619 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:02,038 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:02,448 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:02,851 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:03,270 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:03,705 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:04,116 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:04,530 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:04,921 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:05,329 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:08:05,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:05,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:05,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:05,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:05,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:05,569 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:08:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-07 14:08:05,687 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:08:05,723 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-07 14:08:05,724 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:08:05,730 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:08:05,736 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:08:05,737 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:08:47,196 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:08:52,542 WARN L191 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:08:53,599 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:08:53,972 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:08:54,217 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:08:54,790 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:55,298 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:55,795 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:56,330 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:57,290 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:08:57,764 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:58,339 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:58,814 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:59,308 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:59,829 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:08:59,851 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:09:00,116 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:09:00,230 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:09:00,596 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:09:00,598 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:09:01,092 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:01,573 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:01,709 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:02,499 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:02,978 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:03,445 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:03,573 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:04,355 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:04,872 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:05,365 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:05,524 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:06,323 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:07,220 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1086 [2019-10-07 14:09:07,698 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:07,979 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:08,939 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:09,420 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:09,890 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:10,020 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:10,859 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:11,331 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:11,803 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:11,930 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:12,726 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:13,203 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:13,674 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:13,801 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:14,602 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:15,094 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:15,588 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:15,716 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:16,516 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:16,995 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:17,478 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:17,614 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:18,413 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:18,895 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:19,364 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:19,491 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:20,315 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:20,792 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:21,265 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:21,397 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:22,196 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:22,673 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:23,150 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:23,277 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:24,066 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:24,532 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:24,996 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:25,140 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:25,935 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:26,815 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:27,598 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:27,736 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:28,543 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:30,000 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:09:30,816 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:30,954 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:31,770 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:32,567 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:33,369 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:33,495 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:09:34,286 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:35,720 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:09:36,534 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:09:36,665 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:37,457 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:09:39,215 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:09:40,086 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:09:40,221 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:41,042 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:09:42,503 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:09:43,308 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:09:43,436 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:44,246 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:09:45,047 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:09:45,849 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:09:45,980 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:46,807 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:09:47,611 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:48,421 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:48,562 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:49,391 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:50,221 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:51,030 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:51,165 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:51,973 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:52,801 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:53,624 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:53,790 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:54,598 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:55,403 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:56,206 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:56,346 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:09:57,162 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:09:58,694 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:09:59,496 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:09:59,651 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:00,458 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:01,941 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:02,742 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:02,906 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:03,702 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:04,496 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:05,287 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:05,418 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:06,211 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:07,685 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:10:08,494 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:10:08,632 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:09,434 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:10,266 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:11,072 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:11,206 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:12,010 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:13,460 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:10:14,252 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:10:14,379 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:15,172 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:15,989 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:10:16,787 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:10:16,927 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:17,725 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:10:18,532 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:10:19,331 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:10:19,469 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:20,273 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:10:21,750 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:22,567 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:22,697 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:23,485 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:24,926 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:25,719 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:25,852 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:26,657 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:27,450 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:28,250 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:28,378 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:29,160 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:30,623 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:31,433 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:31,564 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:32,353 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:33,827 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:34,637 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:34,768 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:35,569 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:36,362 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:37,155 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:37,284 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:38,078 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:38,899 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:39,727 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:39,859 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:40,667 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:41,475 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:42,278 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:42,420 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:43,214 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:44,012 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:44,807 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:44,938 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:45,735 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:47,199 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1258 [2019-10-07 14:10:47,997 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:10:48,130 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:10:48,945 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:10:50,434 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:51,228 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:51,372 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:52,173 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:53,620 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:10:54,407 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:54,538 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:55,334 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:56,130 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:56,928 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:57,057 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:10:57,851 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:10:59,319 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:00,137 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:00,290 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:01,092 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:01,907 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:02,708 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:02,864 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:03,663 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:05,104 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:05,926 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:06,056 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:06,874 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:08,313 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:09,122 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:09,256 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:10,049 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:11,432 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:11:12,247 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:12,384 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:13,198 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:11:14,600 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:11:15,417 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:15,552 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:16,369 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:11:17,782 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:11:18,599 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:18,735 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:19,547 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:11:21,012 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:21,817 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:21,953 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:22,753 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:24,238 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:25,055 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:25,188 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:25,985 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:27,467 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:28,272 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:28,408 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:29,228 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:30,886 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:31,693 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:31,828 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:32,646 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:33,474 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:34,295 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:34,422 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:35,224 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:36,723 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:37,526 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:37,673 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:38,483 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:39,322 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:40,129 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:40,269 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:41,081 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:42,534 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:43,340 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:43,469 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:44,287 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:45,929 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:11:46,734 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:11:46,867 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:47,665 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:49,061 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:11:49,881 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:11:50,021 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:11:50,829 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:11:52,329 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:53,135 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:53,276 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:54,097 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:55,615 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:11:56,420 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:56,556 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:57,356 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:58,162 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:58,981 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:11:59,109 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:11:59,930 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:00,776 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:01,585 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:01,721 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:02,536 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:03,377 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:04,180 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:04,319 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:05,141 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:05,148 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1112 for LOIs [2019-10-07 14:12:05,665 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:12:06,183 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:12:06,316 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:07,114 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:07,680 WARN L191 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:08,210 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:08,339 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:09,138 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:10,140 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1122 [2019-10-07 14:12:10,673 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:10,806 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:11,606 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:12,147 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:12,676 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:12,802 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:13,614 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:14,147 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:14,688 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:14,816 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:15,604 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:16,134 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:16,663 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:12:16,790 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:17,583 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:17,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:12:17,858 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:12:17,863 INFO L168 Benchmark]: Toolchain (without parser) took 308346.39 ms. Allocated memory was 137.9 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 100.0 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 653.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,864 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1109.40 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 143.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,865 INFO L168 Benchmark]: Boogie Preprocessor took 192.57 ms. Allocated memory is still 201.9 MB. Free memory was 143.0 MB in the beginning and 133.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,865 INFO L168 Benchmark]: RCFGBuilder took 5441.96 ms. Allocated memory was 201.9 MB in the beginning and 309.3 MB in the end (delta: 107.5 MB). Free memory was 133.2 MB in the beginning and 246.6 MB in the end (delta: -113.4 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,866 INFO L168 Benchmark]: TraceAbstraction took 301597.71 ms. Allocated memory was 309.3 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 246.6 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 628.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:17,868 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1109.40 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 143.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.57 ms. Allocated memory is still 201.9 MB. Free memory was 143.0 MB in the beginning and 133.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5441.96 ms. Allocated memory was 201.9 MB in the beginning and 309.3 MB in the end (delta: 107.5 MB). Free memory was 133.2 MB in the beginning and 246.6 MB in the end (delta: -113.4 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 301597.71 ms. Allocated memory was 309.3 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 246.6 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 628.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...