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_spec14_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:01:44,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:01:44,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:01:44,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:01:44,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:01:44,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:01:44,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:01:44,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:01:44,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:01:44,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:01:44,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:01:44,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:01:44,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:01:44,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:01:44,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:01:44,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:01:44,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:01:44,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:01:44,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:01:44,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:01:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:01:44,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:01:44,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:01:44,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:01:44,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:01:44,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:01:44,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:01:44,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:01:44,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:01:44,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:01:44,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:01:44,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:01:44,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:01:44,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:01:44,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:01:44,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:01:44,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:01:44,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:01:44,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:01:44,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:01:44,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:01:44,660 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 14:01:44,674 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:01:44,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:01:44,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:01:44,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:01:44,676 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:01:44,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:01:44,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:01:44,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:01:44,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:01:44,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:01:44,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:01:44,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:01:44,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:01:44,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:01:44,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:01:44,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:01:44,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:01:44,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:01:44,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:01:44,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:01:44,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:01:44,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:01:44,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:01:44,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:01:44,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:01:44,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:01:44,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:01:44,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:01:44,683 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 14:01:44,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:01:44,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:01:45,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:01:45,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:01:45,005 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:01:45,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product27.cil.c [2019-10-07 14:01:45,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71959e493/1e342b1534014c839f996d6d3d9cbe01/FLAGe22e39eae [2019-10-07 14:01:45,735 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:01:45,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product27.cil.c [2019-10-07 14:01:45,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71959e493/1e342b1534014c839f996d6d3d9cbe01/FLAGe22e39eae [2019-10-07 14:01:45,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71959e493/1e342b1534014c839f996d6d3d9cbe01 [2019-10-07 14:01:45,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:01:45,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:01:45,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:01:45,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:01:45,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:01:45,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:01:45" (1/1) ... [2019-10-07 14:01:45,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240d376e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:45, skipping insertion in model container [2019-10-07 14:01:45,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:01:45" (1/1) ... [2019-10-07 14:01:45,984 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:01:46,068 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:01:46,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:01:46,805 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:01:46,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:01:46,985 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:01:46,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46 WrapperNode [2019-10-07 14:01:46,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:01:46,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:01:46,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:01:46,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:01:46,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:46,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (1/1) ... [2019-10-07 14:01:47,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:01:47,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:01:47,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:01:47,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:01:47,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (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 14:01:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:01:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:01:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:01:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:01:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:01:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:01:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:01:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:01:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:01:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:01:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:01:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:01:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:01:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:01:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:01:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:01:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:01:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:01:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:01:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:01:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:01:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:01:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:01:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:01:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:01:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:01:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:01:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:01:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:01:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:01:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:01:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:01:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:01:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:01:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:01:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:01:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:01:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:01:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:01:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:01:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:01:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:01:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:01:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:01:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:01:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:01:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:01:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:01:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:01:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:01:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:01:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:01:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:01:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:01:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:01:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:01:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:01:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:01:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:01:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:01:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:01:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:01:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:01:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:01:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:01:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:01:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:01:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:01:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:01:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:01:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:01:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:01:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:01:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:01:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:01:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:01:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:01:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:01:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:01:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:01:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:01:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:01:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:01:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:01:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:01:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:01:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:01:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:01:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:01:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:01:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:01:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:01:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:01:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:01:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:01:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:01:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:01:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:01:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:01:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:01:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:01:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:01:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:01:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:01:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:01:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:01:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:01:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:01:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:01:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:01:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:01:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:01:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:01:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:01:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:01:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:01:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:01:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:01:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:01:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:01:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:01:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:01:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:01:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:01:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:01:52,412 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:01:52,413 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:01:52,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:01:52 BoogieIcfgContainer [2019-10-07 14:01:52,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:01:52,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:01:52,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:01:52,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:01:52,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:01:45" (1/3) ... [2019-10-07 14:01:52,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e6b99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:01:52, skipping insertion in model container [2019-10-07 14:01:52,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:01:46" (2/3) ... [2019-10-07 14:01:52,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e6b99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:01:52, skipping insertion in model container [2019-10-07 14:01:52,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:01:52" (3/3) ... [2019-10-07 14:01:52,424 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product27.cil.c [2019-10-07 14:01:52,434 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:01:52,498 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:01:52,508 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:01:52,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:01:52,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:01:52,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:01:52,541 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:01:52,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:01:52,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:01:52,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:01:52,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:01:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states. [2019-10-07 14:01:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:01:52,596 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:01:52,597 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:52,600 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:01:52,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:01:52,606 INFO L82 PathProgramCache]: Analyzing trace with hash 172227344, now seen corresponding path program 1 times [2019-10-07 14:01:52,615 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:01:52,615 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:52,616 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:52,616 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:52,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:01:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:01:53,397 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:53,398 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:01:53,398 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:01:53,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:01:53,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:01:53,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:01:53,422 INFO L87 Difference]: Start difference. First operand 547 states. Second operand 7 states. [2019-10-07 14:01:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:01:54,971 INFO L93 Difference]: Finished difference Result 969 states and 1426 transitions. [2019-10-07 14:01:54,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:01:54,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:01:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:01:54,999 INFO L225 Difference]: With dead ends: 969 [2019-10-07 14:01:54,999 INFO L226 Difference]: Without dead ends: 544 [2019-10-07 14:01:55,009 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:01:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-07 14:01:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 538. [2019-10-07 14:01:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-07 14:01:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 770 transitions. [2019-10-07 14:01:55,134 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 770 transitions. Word has length 110 [2019-10-07 14:01:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:01:55,136 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 770 transitions. [2019-10-07 14:01:55,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:01:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 770 transitions. [2019-10-07 14:01:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:01:55,145 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:01:55,146 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:01:55,146 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:01:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:01:55,147 INFO L82 PathProgramCache]: Analyzing trace with hash 975687760, now seen corresponding path program 1 times [2019-10-07 14:01:55,147 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:01:55,147 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:55,147 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:55,148 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:01:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-07 14:01:55,445 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:55,446 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:01:55,446 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:01:55,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:01:55,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:01:55,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:01:55,449 INFO L87 Difference]: Start difference. First operand 538 states and 770 transitions. Second operand 5 states. [2019-10-07 14:01:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:01:55,515 INFO L93 Difference]: Finished difference Result 1051 states and 1519 transitions. [2019-10-07 14:01:55,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:01:55,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2019-10-07 14:01:55,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:01:55,527 INFO L225 Difference]: With dead ends: 1051 [2019-10-07 14:01:55,528 INFO L226 Difference]: Without dead ends: 544 [2019-10-07 14:01:55,532 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:01:55,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-07 14:01:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2019-10-07 14:01:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-10-07 14:01:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 776 transitions. [2019-10-07 14:01:55,615 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 776 transitions. Word has length 150 [2019-10-07 14:01:55,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:01:55,616 INFO L462 AbstractCegarLoop]: Abstraction has 544 states and 776 transitions. [2019-10-07 14:01:55,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:01:55,617 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 776 transitions. [2019-10-07 14:01:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-07 14:01:55,628 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:01:55,629 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:01:55,629 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:01:55,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:01:55,630 INFO L82 PathProgramCache]: Analyzing trace with hash 52849665, now seen corresponding path program 1 times [2019-10-07 14:01:55,633 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:01:55,634 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:55,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:55,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:55,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:01:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-07 14:01:56,056 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:56,056 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:01:56,056 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 14:01:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:56,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:01:56,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:01:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-07 14:01:56,790 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:01:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-07 14:01:57,204 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:01:57,204 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:01:57,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:01:57,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:01:57,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:01:57,206 INFO L87 Difference]: Start difference. First operand 544 states and 776 transitions. Second operand 4 states. [2019-10-07 14:01:57,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:01:57,411 INFO L93 Difference]: Finished difference Result 1096 states and 1603 transitions. [2019-10-07 14:01:57,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:01:57,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2019-10-07 14:01:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:01:57,417 INFO L225 Difference]: With dead ends: 1096 [2019-10-07 14:01:57,418 INFO L226 Difference]: Without dead ends: 583 [2019-10-07 14:01:57,421 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 431 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:01:57,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-07 14:01:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2019-10-07 14:01:57,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-10-07 14:01:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 849 transitions. [2019-10-07 14:01:57,453 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 849 transitions. Word has length 216 [2019-10-07 14:01:57,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:01:57,454 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 849 transitions. [2019-10-07 14:01:57,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:01:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 849 transitions. [2019-10-07 14:01:57,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-07 14:01:57,459 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:01:57,459 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:01:57,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:01:57,677 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:01:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:01:57,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1143673395, now seen corresponding path program 1 times [2019-10-07 14:01:57,678 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:01:57,679 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:57,679 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:57,679 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:01:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-10-07 14:01:57,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:57,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:01:57,898 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 14:01:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:58,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 3300 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:01:58,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:01:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-07 14:01:58,724 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:01:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-10-07 14:01:58,998 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:01:58,999 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:01:58,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:01:59,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:01:59,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:01:59,000 INFO L87 Difference]: Start difference. First operand 583 states and 849 transitions. Second operand 4 states. [2019-10-07 14:01:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:01:59,248 INFO L93 Difference]: Finished difference Result 1174 states and 1748 transitions. [2019-10-07 14:01:59,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:01:59,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 221 [2019-10-07 14:01:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:01:59,255 INFO L225 Difference]: With dead ends: 1174 [2019-10-07 14:01:59,256 INFO L226 Difference]: Without dead ends: 622 [2019-10-07 14:01:59,259 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:01:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-07 14:01:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-10-07 14:01:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-10-07 14:01:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 922 transitions. [2019-10-07 14:01:59,295 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 922 transitions. Word has length 221 [2019-10-07 14:01:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:01:59,297 INFO L462 AbstractCegarLoop]: Abstraction has 622 states and 922 transitions. [2019-10-07 14:01:59,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:01:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 922 transitions. [2019-10-07 14:01:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-07 14:01:59,302 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:01:59,302 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:59,512 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:01:59,513 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:01:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:01:59,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1621088259, now seen corresponding path program 1 times [2019-10-07 14:01:59,514 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:01:59,514 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:59,515 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:59,515 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:01:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:01:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:01:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-10-07 14:01:59,808 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:01:59,809 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:01:59,809 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 14:02:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:00,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 3304 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:00,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-07 14:02:00,577 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-10-07 14:02:00,869 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:00,869 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:02:00,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:00,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:00,870 INFO L87 Difference]: Start difference. First operand 622 states and 922 transitions. Second operand 4 states. [2019-10-07 14:02:01,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:01,102 INFO L93 Difference]: Finished difference Result 1252 states and 1893 transitions. [2019-10-07 14:02:01,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:01,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 225 [2019-10-07 14:02:01,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:01,108 INFO L225 Difference]: With dead ends: 1252 [2019-10-07 14:02:01,108 INFO L226 Difference]: Without dead ends: 661 [2019-10-07 14:02:01,111 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 447 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:02:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-10-07 14:02:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2019-10-07 14:02:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-10-07 14:02:01,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 995 transitions. [2019-10-07 14:02:01,139 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 995 transitions. Word has length 225 [2019-10-07 14:02:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:01,140 INFO L462 AbstractCegarLoop]: Abstraction has 661 states and 995 transitions. [2019-10-07 14:02:01,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 995 transitions. [2019-10-07 14:02:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:02:01,144 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:01,144 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:01,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:01,362 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:01,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:01,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1925505400, now seen corresponding path program 1 times [2019-10-07 14:02:01,363 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:01,363 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:01,363 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:01,363 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:02:01,533 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:01,533 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:02,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 2925 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:02,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:02:02,218 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:02:02,396 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:02,396 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:02:02,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:02,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:02,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:02,398 INFO L87 Difference]: Start difference. First operand 661 states and 995 transitions. Second operand 4 states. [2019-10-07 14:02:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:02,587 INFO L93 Difference]: Finished difference Result 1330 states and 2038 transitions. [2019-10-07 14:02:02,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:02,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2019-10-07 14:02:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:02,595 INFO L225 Difference]: With dead ends: 1330 [2019-10-07 14:02:02,595 INFO L226 Difference]: Without dead ends: 700 [2019-10-07 14:02:02,598 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:02:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2019-10-07 14:02:02,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2019-10-07 14:02:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-07 14:02:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1068 transitions. [2019-10-07 14:02:02,668 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1068 transitions. Word has length 167 [2019-10-07 14:02:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:02,668 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 1068 transitions. [2019-10-07 14:02:02,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1068 transitions. [2019-10-07 14:02:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-07 14:02:02,673 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:02,674 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:02,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:02,882 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:02,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1015124303, now seen corresponding path program 1 times [2019-10-07 14:02:02,883 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:02,883 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:02,883 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:02,883 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 14 proven. 25 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2019-10-07 14:02:03,089 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:03,089 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:03,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 3303 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 14:02:03,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-10-07 14:02:04,123 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2019-10-07 14:02:04,460 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:02:04,460 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6] total 13 [2019-10-07 14:02:04,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:02:04,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:02:04,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:02:04,464 INFO L87 Difference]: Start difference. First operand 700 states and 1068 transitions. Second operand 9 states. [2019-10-07 14:02:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:08,056 INFO L93 Difference]: Finished difference Result 1969 states and 3063 transitions. [2019-10-07 14:02:08,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:02:08,057 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2019-10-07 14:02:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:08,067 INFO L225 Difference]: With dead ends: 1969 [2019-10-07 14:02:08,067 INFO L226 Difference]: Without dead ends: 1300 [2019-10-07 14:02:08,071 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:02:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2019-10-07 14:02:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1261. [2019-10-07 14:02:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2019-10-07 14:02:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1968 transitions. [2019-10-07 14:02:08,126 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1968 transitions. Word has length 230 [2019-10-07 14:02:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:08,127 INFO L462 AbstractCegarLoop]: Abstraction has 1261 states and 1968 transitions. [2019-10-07 14:02:08,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:02:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1968 transitions. [2019-10-07 14:02:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:02:08,133 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:08,133 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:08,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:08,342 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash -282558234, now seen corresponding path program 1 times [2019-10-07 14:02:08,343 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:08,343 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:08,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:08,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:02:08,593 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:08,593 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:08,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:09,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:02:09,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:02:09,296 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:09,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:09,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:09,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:09,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:02:09,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:02:09,663 INFO L162 IcfgInterpreter]: Started Sifa with 131 locations of interest [2019-10-07 14:02:09,663 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:02:09,687 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:02:09,713 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:02:09,714 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:02:54,227 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 754 [2019-10-07 14:02:59,123 WARN L191 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:02:59,537 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:03:00,087 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:03:00,637 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:03:01,345 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:01,905 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:02,418 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:02,940 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:03,903 WARN L191 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 1020 [2019-10-07 14:03:04,357 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:04,896 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:05,344 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:05,820 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:06,361 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:03:06,381 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 376 for LOIs [2019-10-07 14:03:06,653 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 14:03:06,796 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 14:03:07,143 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 903 [2019-10-07 14:03:07,145 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1062 for LOIs [2019-10-07 14:03:07,642 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:08,094 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:08,234 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:09,020 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:09,475 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:09,914 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:10,037 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:10,799 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:11,273 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:11,710 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:11,835 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:12,622 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:13,426 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 1222 DAG size of output: 1062 [2019-10-07 14:03:13,897 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:14,046 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:14,773 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:15,222 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:15,717 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:15,828 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:16,561 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:17,004 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:17,486 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:17,598 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:18,331 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:18,769 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:19,219 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:19,834 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:20,565 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:21,007 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:21,444 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:21,555 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:22,296 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:22,748 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:23,185 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:23,298 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:24,055 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:24,494 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:24,941 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:25,060 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:25,788 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:26,225 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:26,665 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:26,825 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:27,563 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:28,001 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:28,454 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:28,578 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:29,308 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:29,746 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:30,180 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:03:30,288 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:31,018 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:31,788 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:32,530 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:32,651 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:33,405 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:34,732 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:03:35,461 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:35,590 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:36,319 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:37,052 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:37,801 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:37,911 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:03:38,646 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:03:39,420 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:40,161 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:40,278 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:41,014 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:42,363 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:03:43,113 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:43,234 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:43,969 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:45,287 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:03:46,029 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:46,139 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:46,876 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:47,636 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:03:48,396 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:03:48,517 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:49,246 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:49,979 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:50,725 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:50,840 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:51,575 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:03:52,342 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:53,076 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:53,204 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:53,935 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:03:55,189 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:03:55,920 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:56,037 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:56,772 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:03:57,504 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:58,223 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:03:58,347 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:03:59,084 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:00,432 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:01,158 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:01,274 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:01,999 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:03,317 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:04,041 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:04,160 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:04,882 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:05,611 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:06,333 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:06,444 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:07,171 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:08,719 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:04:09,461 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:09,581 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:10,312 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:11,059 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:11,801 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:11,918 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:12,647 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:13,976 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:04:14,712 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:14,823 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:15,551 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:17,231 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:04:17,960 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:04:18,100 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:18,836 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:20,094 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:04:20,830 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:20,948 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:21,686 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:23,011 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:23,740 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:23,860 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:24,583 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:25,886 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:26,595 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:26,729 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:27,439 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:28,161 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:28,894 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:29,003 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:29,716 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:31,037 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:31,758 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:31,874 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:32,600 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:34,093 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:34,816 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:34,933 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:35,654 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:36,368 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:37,082 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:37,191 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:37,910 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:39,251 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:04:39,964 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:40,080 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:40,791 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:42,093 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:04:42,809 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:42,925 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:43,640 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:44,359 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:45,090 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:45,200 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:45,923 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:47,160 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1224 [2019-10-07 14:04:48,035 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:48,153 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:48,875 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:04:50,176 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1233 DAG size of output: 1226 [2019-10-07 14:04:50,905 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:51,025 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:51,752 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:53,068 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1233 DAG size of output: 1226 [2019-10-07 14:04:53,810 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:53,926 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:54,671 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:55,979 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1233 DAG size of output: 1226 [2019-10-07 14:04:56,690 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:56,805 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:04:57,523 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:04:58,808 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:59,528 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:59,657 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:00,364 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:01,662 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:02,364 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:02,477 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:03,178 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:03,881 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:04,614 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:04,723 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:05,434 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:06,738 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:07,456 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:07,598 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:08,324 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:09,047 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:09,776 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:09,897 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:10,604 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:11,888 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:12,610 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:12,718 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:13,437 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:14,726 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:15,433 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:15,546 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:16,260 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:17,484 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:05:18,192 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:18,307 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:19,022 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:20,312 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:21,016 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:21,129 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:21,836 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:23,141 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:23,844 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:23,957 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:24,658 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:25,945 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:26,658 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:26,770 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:27,481 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:28,773 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:29,489 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:29,602 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:30,321 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:31,032 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:31,752 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:31,860 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:32,573 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:33,319 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:34,039 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:34,154 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:34,884 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:36,186 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:36,906 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:37,026 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:37,753 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:39,063 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:39,779 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:39,893 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:40,623 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:41,931 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:42,649 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:42,762 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:43,477 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:44,198 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:44,916 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:45,025 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:45,747 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:46,486 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:47,218 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:47,340 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:48,056 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:49,404 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:50,141 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:50,255 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:50,973 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:52,261 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:52,984 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:53,093 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:53,822 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:55,121 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:55,846 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:55,969 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:56,692 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:56,699 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1088 for LOIs [2019-10-07 14:05:57,168 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:05:57,636 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:05:57,746 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:58,464 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:58,475 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1038 for LOIs [2019-10-07 14:05:58,863 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:05:59,254 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:05:59,364 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:00,093 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:00,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:06:00,343 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.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 14:06:00,349 INFO L168 Benchmark]: Toolchain (without parser) took 254378.65 ms. Allocated memory was 137.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 99.8 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:00,349 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:06:00,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1014.42 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 141.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:00,350 INFO L168 Benchmark]: Boogie Preprocessor took 170.46 ms. Allocated memory is still 201.9 MB. Free memory was 141.6 MB in the beginning and 132.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:00,350 INFO L168 Benchmark]: RCFGBuilder took 5258.09 ms. Allocated memory was 201.9 MB in the beginning and 311.4 MB in the end (delta: 109.6 MB). Free memory was 132.8 MB in the beginning and 76.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 165.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:00,350 INFO L168 Benchmark]: TraceAbstraction took 247931.13 ms. Allocated memory was 311.4 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 76.9 MB in the beginning and 2.4 GB in the end (delta: -2.4 GB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:06:00,352 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1014.42 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 141.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.46 ms. Allocated memory is still 201.9 MB. Free memory was 141.6 MB in the beginning and 132.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5258.09 ms. Allocated memory was 201.9 MB in the beginning and 311.4 MB in the end (delta: 109.6 MB). Free memory was 132.8 MB in the beginning and 76.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 165.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247931.13 ms. Allocated memory was 311.4 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 76.9 MB in the beginning and 2.4 GB in the end (delta: -2.4 GB). There was no memory consumed. 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...