java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:29:41,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:29:41,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:29:41,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:29:41,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:29:41,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:29:41,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:29:41,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:29:41,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:29:41,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:29:41,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:29:41,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:29:41,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:29:41,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:29:41,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:29:41,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:29:41,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:29:41,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:29:41,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:29:41,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:29:41,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:29:41,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:29:41,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:29:41,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:29:41,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:29:41,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:29:41,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:29:41,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:29:41,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:29:41,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:29:41,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:29:41,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:29:41,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:29:41,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:29:41,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:29:41,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:29:41,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:29:41,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:29:41,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:29:41,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:29:41,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:29:41,239 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 14:29:41,261 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:29:41,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:29:41,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:29:41,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:29:41,264 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:29:41,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:29:41,265 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:29:41,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:29:41,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:29:41,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:29:41,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:29:41,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:29:41,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:29:41,267 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:29:41,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:29:41,267 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:29:41,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:29:41,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:29:41,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:29:41,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:29:41,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:29:41,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:29:41,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:29:41,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:29:41,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:29:41,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:29:41,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:29:41,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:29:41,271 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 14:29:41,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:29:41,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:29:41,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:29:41,611 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:29:41,611 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:29:41,612 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2019-10-07 14:29:41,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6c4d277/1c07343986cf4837815319655ddce78f/FLAG04f2a5f0f [2019-10-07 14:29:42,356 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:29:42,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2019-10-07 14:29:42,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6c4d277/1c07343986cf4837815319655ddce78f/FLAG04f2a5f0f [2019-10-07 14:29:42,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6c4d277/1c07343986cf4837815319655ddce78f [2019-10-07 14:29:42,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:29:42,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:29:42,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:29:42,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:29:42,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:29:42,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:29:42" (1/1) ... [2019-10-07 14:29:42,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67af7f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:42, skipping insertion in model container [2019-10-07 14:29:42,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:29:42" (1/1) ... [2019-10-07 14:29:42,550 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:29:42,627 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:29:43,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:29:43,393 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:29:43,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:29:43,638 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:29:43,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43 WrapperNode [2019-10-07 14:29:43,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:29:43,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:29:43,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:29:43,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:29:43,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (1/1) ... [2019-10-07 14:29:43,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:29:43,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:29:43,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:29:43,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:29:43,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (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 14:29:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:29:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:29:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:29:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:29:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:29:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:29:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:29:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:29:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:29:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:29:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:29:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:29:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:29:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:29:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:29:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:29:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:29:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:29:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:29:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:29:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:29:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:29:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:29:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:29:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:29:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:29:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:29:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:29:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:29:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:29:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:29:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:29:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:29:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:29:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:29:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:29:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:29:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:29:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:29:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:29:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:29:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:29:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:29:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:29:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:29:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:29:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:29:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:29:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:29:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:29:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:29:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:29:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:29:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:29:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:29:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:29:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:29:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:29:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:29:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:29:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:29:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:29:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:29:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:29:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:29:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:29:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:29:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:29:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:29:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:29:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:29:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:29:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:29:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:29:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:29:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:29:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:29:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:29:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:29:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:29:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:29:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:29:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:29:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:29:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:29:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:29:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:29:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:29:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:29:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:29:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:29:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:29:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:29:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:29:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:29:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:29:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:29:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:29:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:29:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:29:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:29:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:29:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:29:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:29:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:29:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:29:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:29:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:29:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:29:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:29:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:29:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:29:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:29:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:29:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:29:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:29:49,214 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:29:49,214 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:29:49,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:29:49 BoogieIcfgContainer [2019-10-07 14:29:49,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:29:49,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:29:49,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:29:49,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:29:49,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:29:42" (1/3) ... [2019-10-07 14:29:49,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dfbf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:29:49, skipping insertion in model container [2019-10-07 14:29:49,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:29:43" (2/3) ... [2019-10-07 14:29:49,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dfbf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:29:49, skipping insertion in model container [2019-10-07 14:29:49,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:29:49" (3/3) ... [2019-10-07 14:29:49,224 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product29.cil.c [2019-10-07 14:29:49,235 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:29:49,245 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:29:49,257 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:29:49,291 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:29:49,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:29:49,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:29:49,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:29:49,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:29:49,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:29:49,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:29:49,292 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:29:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-07 14:29:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:29:49,348 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:29:49,349 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:29:49,351 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:29:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:29:49,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1689807222, now seen corresponding path program 1 times [2019-10-07 14:29:49,366 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:29:49,366 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:49,366 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:49,367 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:29:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-07 14:29:50,314 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:50,315 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:29:50,315 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 14:29:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:50,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 3001 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:29:50,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:29:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:29:50,993 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:29:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:29:51,120 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:29:51,121 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2019-10-07 14:29:51,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:29:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:29:51,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:29:51,144 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 3 states. [2019-10-07 14:29:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:29:51,415 INFO L93 Difference]: Finished difference Result 1316 states and 2001 transitions. [2019-10-07 14:29:51,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:29:51,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2019-10-07 14:29:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:29:51,462 INFO L225 Difference]: With dead ends: 1316 [2019-10-07 14:29:51,463 INFO L226 Difference]: Without dead ends: 850 [2019-10-07 14:29:51,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:29:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2019-10-07 14:29:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 837. [2019-10-07 14:29:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2019-10-07 14:29:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1256 transitions. [2019-10-07 14:29:51,675 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1256 transitions. Word has length 112 [2019-10-07 14:29:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:29:51,676 INFO L462 AbstractCegarLoop]: Abstraction has 837 states and 1256 transitions. [2019-10-07 14:29:51,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:29:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1256 transitions. [2019-10-07 14:29:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:29:51,686 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:29:51,686 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:29:51,889 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:29:51,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:29:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:29:51,891 INFO L82 PathProgramCache]: Analyzing trace with hash 343984818, now seen corresponding path program 1 times [2019-10-07 14:29:51,891 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:29:51,891 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:51,892 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:51,892 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:29:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:29:52,217 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:52,217 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:29:52,217 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 14:29:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:52,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:29:52,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:29:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:29:52,843 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:29:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:29:53,156 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:29:53,156 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [7] total 10 [2019-10-07 14:29:53,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:29:53,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:29:53,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:29:53,161 INFO L87 Difference]: Start difference. First operand 837 states and 1256 transitions. Second operand 5 states. [2019-10-07 14:29:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:29:55,046 INFO L93 Difference]: Finished difference Result 3196 states and 4897 transitions. [2019-10-07 14:29:55,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:29:55,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2019-10-07 14:29:55,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:29:55,071 INFO L225 Difference]: With dead ends: 3196 [2019-10-07 14:29:55,072 INFO L226 Difference]: Without dead ends: 2390 [2019-10-07 14:29:55,082 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:29:55,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2019-10-07 14:29:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2340. [2019-10-07 14:29:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2340 states. [2019-10-07 14:29:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 3483 transitions. [2019-10-07 14:29:55,335 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 3483 transitions. Word has length 113 [2019-10-07 14:29:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:29:55,336 INFO L462 AbstractCegarLoop]: Abstraction has 2340 states and 3483 transitions. [2019-10-07 14:29:55,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:29:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 3483 transitions. [2019-10-07 14:29:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:29:55,343 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:29:55,343 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:29:55,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:29:55,545 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:29:55,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:29:55,546 INFO L82 PathProgramCache]: Analyzing trace with hash -483217119, now seen corresponding path program 1 times [2019-10-07 14:29:55,546 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:29:55,547 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:55,547 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:55,547 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:29:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:29:55,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:55,802 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:29:55,802 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 14:29:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:56,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-07 14:29:56,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:29:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:29:56,581 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:29:56,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:29:56,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:29:56,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:29:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:29:56,899 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:29:56,899 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [7] total 16 [2019-10-07 14:29:56,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:29:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:29:56,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:29:56,901 INFO L87 Difference]: Start difference. First operand 2340 states and 3483 transitions. Second operand 11 states. [2019-10-07 14:29:58,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:29:58,725 INFO L93 Difference]: Finished difference Result 4405 states and 6612 transitions. [2019-10-07 14:29:58,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:29:58,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 118 [2019-10-07 14:29:58,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:29:58,757 INFO L225 Difference]: With dead ends: 4405 [2019-10-07 14:29:58,757 INFO L226 Difference]: Without dead ends: 2652 [2019-10-07 14:29:58,771 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 226 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:29:58,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2019-10-07 14:29:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2524. [2019-10-07 14:29:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2524 states. [2019-10-07 14:29:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3735 transitions. [2019-10-07 14:29:58,926 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3735 transitions. Word has length 118 [2019-10-07 14:29:58,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:29:58,929 INFO L462 AbstractCegarLoop]: Abstraction has 2524 states and 3735 transitions. [2019-10-07 14:29:58,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:29:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3735 transitions. [2019-10-07 14:29:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:29:58,934 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:29:58,934 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:29:59,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:29:59,143 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:29:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:29:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1170444739, now seen corresponding path program 1 times [2019-10-07 14:29:59,144 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:29:59,144 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:59,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:59,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:29:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:29:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:29:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:29:59,337 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:29:59,337 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:29:59,337 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 14:30:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:00,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:30:00,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:30:00,120 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:00,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:30:00,341 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:30:00,341 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 13 [2019-10-07 14:30:00,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:30:00,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:30:00,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:30:00,343 INFO L87 Difference]: Start difference. First operand 2524 states and 3735 transitions. Second operand 8 states. [2019-10-07 14:30:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:00,671 INFO L93 Difference]: Finished difference Result 4981 states and 7473 transitions. [2019-10-07 14:30:00,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:30:00,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2019-10-07 14:30:00,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:00,701 INFO L225 Difference]: With dead ends: 4981 [2019-10-07 14:30:00,701 INFO L226 Difference]: Without dead ends: 3012 [2019-10-07 14:30:00,729 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 229 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:30:00,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2019-10-07 14:30:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 3012. [2019-10-07 14:30:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3012 states. [2019-10-07 14:30:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 4479 transitions. [2019-10-07 14:30:00,909 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 4479 transitions. Word has length 118 [2019-10-07 14:30:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:00,913 INFO L462 AbstractCegarLoop]: Abstraction has 3012 states and 4479 transitions. [2019-10-07 14:30:00,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:30:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 4479 transitions. [2019-10-07 14:30:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:30:00,923 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:00,924 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:01,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:01,135 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:01,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1768528239, now seen corresponding path program 1 times [2019-10-07 14:30:01,136 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:01,136 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:01,136 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:01,136 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:01,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:01,342 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:01,342 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:01,342 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 14:30:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:02,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 14:30:02,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:30:02,050 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:30:02,170 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:30:02,170 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [7] total 7 [2019-10-07 14:30:02,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:30:02,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:30:02,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:30:02,175 INFO L87 Difference]: Start difference. First operand 3012 states and 4479 transitions. Second operand 4 states. [2019-10-07 14:30:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:03,537 INFO L93 Difference]: Finished difference Result 11549 states and 17701 transitions. [2019-10-07 14:30:03,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:30:03,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:30:03,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:03,616 INFO L225 Difference]: With dead ends: 11549 [2019-10-07 14:30:03,616 INFO L226 Difference]: Without dead ends: 8609 [2019-10-07 14:30:03,653 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:30:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2019-10-07 14:30:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8470. [2019-10-07 14:30:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8470 states. [2019-10-07 14:30:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 12850 transitions. [2019-10-07 14:30:04,255 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 12850 transitions. Word has length 119 [2019-10-07 14:30:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:04,257 INFO L462 AbstractCegarLoop]: Abstraction has 8470 states and 12850 transitions. [2019-10-07 14:30:04,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:30:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 12850 transitions. [2019-10-07 14:30:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:30:04,262 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:04,262 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:30:04,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:04,480 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:04,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:04,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1185474952, now seen corresponding path program 1 times [2019-10-07 14:30:04,481 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:04,481 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:04,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:04,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:04,674 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:04,674 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:04,674 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 14:30:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:05,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-07 14:30:05,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:30:05,437 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:05,581 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-07 14:30:05,925 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:30:06,324 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:30:06,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:06,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:06,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:06,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:06,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:06,435 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:30:06,435 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 13 [2019-10-07 14:30:06,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:30:06,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:30:06,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:30:06,437 INFO L87 Difference]: Start difference. First operand 8470 states and 12850 transitions. Second operand 6 states. [2019-10-07 14:30:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:08,293 INFO L93 Difference]: Finished difference Result 17048 states and 25944 transitions. [2019-10-07 14:30:08,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:30:08,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2019-10-07 14:30:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:08,371 INFO L225 Difference]: With dead ends: 17048 [2019-10-07 14:30:08,371 INFO L226 Difference]: Without dead ends: 8609 [2019-10-07 14:30:08,428 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:30:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2019-10-07 14:30:08,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8470. [2019-10-07 14:30:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8470 states. [2019-10-07 14:30:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 12847 transitions. [2019-10-07 14:30:08,846 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 12847 transitions. Word has length 121 [2019-10-07 14:30:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:08,846 INFO L462 AbstractCegarLoop]: Abstraction has 8470 states and 12847 transitions. [2019-10-07 14:30:08,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:30:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 12847 transitions. [2019-10-07 14:30:08,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:30:08,851 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:08,851 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:30:09,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:09,062 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:09,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1026878265, now seen corresponding path program 1 times [2019-10-07 14:30:09,063 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:09,063 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:09,063 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:09,064 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:09,278 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:09,278 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:10,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:30:10,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:30:10,786 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:30:10,888 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:30:10,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2019-10-07 14:30:10,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:30:10,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:30:10,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:30:10,890 INFO L87 Difference]: Start difference. First operand 8470 states and 12847 transitions. Second operand 4 states. [2019-10-07 14:30:11,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:11,241 INFO L93 Difference]: Finished difference Result 17179 states and 26331 transitions. [2019-10-07 14:30:11,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:30:11,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:30:11,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:11,306 INFO L225 Difference]: With dead ends: 17179 [2019-10-07 14:30:11,307 INFO L226 Difference]: Without dead ends: 8740 [2019-10-07 14:30:11,342 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:30:11,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8740 states. [2019-10-07 14:30:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8740 to 8569. [2019-10-07 14:30:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8569 states. [2019-10-07 14:30:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8569 states to 8569 states and 12964 transitions. [2019-10-07 14:30:11,723 INFO L78 Accepts]: Start accepts. Automaton has 8569 states and 12964 transitions. Word has length 121 [2019-10-07 14:30:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:11,724 INFO L462 AbstractCegarLoop]: Abstraction has 8569 states and 12964 transitions. [2019-10-07 14:30:11,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:30:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 8569 states and 12964 transitions. [2019-10-07 14:30:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:30:11,728 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:11,728 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:11,938 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:11,938 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:11,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1522690234, now seen corresponding path program 1 times [2019-10-07 14:30:11,939 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:11,939 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:11,939 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:11,940 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-07 14:30:12,129 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:12,129 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:12,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:30:12,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:30:12,778 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:30:12,887 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:30:12,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2019-10-07 14:30:12,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:30:12,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:30:12,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:30:12,892 INFO L87 Difference]: Start difference. First operand 8569 states and 12964 transitions. Second operand 3 states. [2019-10-07 14:30:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:13,475 INFO L93 Difference]: Finished difference Result 21211 states and 32538 transitions. [2019-10-07 14:30:13,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:30:13,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 14:30:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:13,581 INFO L225 Difference]: With dead ends: 21211 [2019-10-07 14:30:13,581 INFO L226 Difference]: Without dead ends: 12673 [2019-10-07 14:30:13,618 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:30:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12673 states. [2019-10-07 14:30:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12673 to 12448. [2019-10-07 14:30:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12448 states. [2019-10-07 14:30:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12448 states to 12448 states and 18846 transitions. [2019-10-07 14:30:14,227 INFO L78 Accepts]: Start accepts. Automaton has 12448 states and 18846 transitions. Word has length 120 [2019-10-07 14:30:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:14,228 INFO L462 AbstractCegarLoop]: Abstraction has 12448 states and 18846 transitions. [2019-10-07 14:30:14,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:30:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states and 18846 transitions. [2019-10-07 14:30:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-07 14:30:14,235 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:14,235 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:14,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:14,447 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:14,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:14,447 INFO L82 PathProgramCache]: Analyzing trace with hash 36158576, now seen corresponding path program 1 times [2019-10-07 14:30:14,447 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:14,447 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:14,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:14,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:14,647 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:14,647 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:15,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 3031 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 14:30:15,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:30:15,342 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:15,611 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2019-10-07 14:30:15,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 14:30:15,764 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:30:15,764 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 7] total 20 [2019-10-07 14:30:15,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:30:15,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:30:15,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:30:15,767 INFO L87 Difference]: Start difference. First operand 12448 states and 18846 transitions. Second operand 6 states. [2019-10-07 14:30:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:17,424 INFO L93 Difference]: Finished difference Result 23734 states and 36077 transitions. [2019-10-07 14:30:17,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:30:17,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2019-10-07 14:30:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:17,512 INFO L225 Difference]: With dead ends: 23734 [2019-10-07 14:30:17,512 INFO L226 Difference]: Without dead ends: 11317 [2019-10-07 14:30:17,566 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:30:17,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2019-10-07 14:30:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 11314. [2019-10-07 14:30:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11314 states. [2019-10-07 14:30:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11314 states to 11314 states and 17135 transitions. [2019-10-07 14:30:18,076 INFO L78 Accepts]: Start accepts. Automaton has 11314 states and 17135 transitions. Word has length 122 [2019-10-07 14:30:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:18,078 INFO L462 AbstractCegarLoop]: Abstraction has 11314 states and 17135 transitions. [2019-10-07 14:30:18,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:30:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 11314 states and 17135 transitions. [2019-10-07 14:30:18,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:30:18,083 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:18,084 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:18,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:18,301 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:18,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:18,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1085002881, now seen corresponding path program 1 times [2019-10-07 14:30:18,301 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:18,302 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:18,302 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:18,302 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 14:30:18,576 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:18,576 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:19,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-07 14:30:19,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:20,156 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2019-10-07 14:30:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:30:20,201 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:20,584 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:30:21,004 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:30:21,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:21,037 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:21,037 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:21,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:21,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:30:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 14:30:21,099 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:30:21,099 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 7] total 16 [2019-10-07 14:30:21,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:30:21,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:30:21,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:30:21,101 INFO L87 Difference]: Start difference. First operand 11314 states and 17135 transitions. Second operand 6 states. [2019-10-07 14:30:22,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:22,976 INFO L93 Difference]: Finished difference Result 32742 states and 50944 transitions. [2019-10-07 14:30:22,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:30:22,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2019-10-07 14:30:22,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:23,160 INFO L225 Difference]: With dead ends: 32742 [2019-10-07 14:30:23,160 INFO L226 Difference]: Without dead ends: 21459 [2019-10-07 14:30:23,239 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:30:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21459 states. [2019-10-07 14:30:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21459 to 21149. [2019-10-07 14:30:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21149 states. [2019-10-07 14:30:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21149 states to 21149 states and 32668 transitions. [2019-10-07 14:30:24,226 INFO L78 Accepts]: Start accepts. Automaton has 21149 states and 32668 transitions. Word has length 126 [2019-10-07 14:30:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:24,226 INFO L462 AbstractCegarLoop]: Abstraction has 21149 states and 32668 transitions. [2019-10-07 14:30:24,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:30:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21149 states and 32668 transitions. [2019-10-07 14:30:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 14:30:24,232 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:24,232 INFO L385 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:24,444 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:24,445 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:24,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1459480474, now seen corresponding path program 1 times [2019-10-07 14:30:24,445 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:24,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:24,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:24,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 14:30:24,699 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:24,699 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:30:24,699 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-07 14:30:24,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-07 14:30:24,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-07 14:30:24,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:30:24,700 INFO L87 Difference]: Start difference. First operand 21149 states and 32668 transitions. Second operand 15 states. [2019-10-07 14:30:41,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:41,326 INFO L93 Difference]: Finished difference Result 84426 states and 137816 transitions. [2019-10-07 14:30:41,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 14:30:41,326 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 132 [2019-10-07 14:30:41,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:41,934 INFO L225 Difference]: With dead ends: 84426 [2019-10-07 14:30:41,934 INFO L226 Difference]: Without dead ends: 66912 [2019-10-07 14:30:42,085 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1681, Unknown=0, NotChecked=0, Total=1980 [2019-10-07 14:30:42,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66912 states. [2019-10-07 14:30:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66912 to 64269. [2019-10-07 14:30:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64269 states. [2019-10-07 14:30:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64269 states to 64269 states and 102846 transitions. [2019-10-07 14:30:45,113 INFO L78 Accepts]: Start accepts. Automaton has 64269 states and 102846 transitions. Word has length 132 [2019-10-07 14:30:45,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:45,113 INFO L462 AbstractCegarLoop]: Abstraction has 64269 states and 102846 transitions. [2019-10-07 14:30:45,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-07 14:30:45,114 INFO L276 IsEmpty]: Start isEmpty. Operand 64269 states and 102846 transitions. [2019-10-07 14:30:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:30:45,121 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:45,121 INFO L385 BasicCegarLoop]: trace histogram [4, 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] [2019-10-07 14:30:45,121 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:45,122 INFO L82 PathProgramCache]: Analyzing trace with hash 448150538, now seen corresponding path program 1 times [2019-10-07 14:30:45,122 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:45,122 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:45,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:45,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:30:45,330 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:45,330 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:45,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 3193 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 14:30:45,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:30:46,059 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:30:46,314 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:30:46,314 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 7] total 15 [2019-10-07 14:30:46,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:30:46,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:30:46,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:30:46,315 INFO L87 Difference]: Start difference. First operand 64269 states and 102846 transitions. Second operand 7 states. [2019-10-07 14:30:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:30:50,356 INFO L93 Difference]: Finished difference Result 129217 states and 216163 transitions. [2019-10-07 14:30:50,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:30:50,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2019-10-07 14:30:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:30:50,909 INFO L225 Difference]: With dead ends: 129217 [2019-10-07 14:30:50,909 INFO L226 Difference]: Without dead ends: 66807 [2019-10-07 14:30:51,180 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 326 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:30:51,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2019-10-07 14:30:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 66227. [2019-10-07 14:30:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66227 states. [2019-10-07 14:30:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66227 states to 66227 states and 110818 transitions. [2019-10-07 14:30:54,024 INFO L78 Accepts]: Start accepts. Automaton has 66227 states and 110818 transitions. Word has length 167 [2019-10-07 14:30:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:30:54,025 INFO L462 AbstractCegarLoop]: Abstraction has 66227 states and 110818 transitions. [2019-10-07 14:30:54,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:30:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 66227 states and 110818 transitions. [2019-10-07 14:30:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:30:54,032 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:30:54,032 INFO L385 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:30:56,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:56,606 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:30:56,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:30:56,607 INFO L82 PathProgramCache]: Analyzing trace with hash -558025075, now seen corresponding path program 1 times [2019-10-07 14:30:56,607 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:30:56,607 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:56,607 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:56,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:30:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:30:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:30:56,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:30:56,802 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:30:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:30:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:30:57,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 14:30:57,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:30:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:30:57,529 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:30:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:30:57,777 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:30:57,777 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 7] total 15 [2019-10-07 14:30:57,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:30:57,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:30:57,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:30:57,778 INFO L87 Difference]: Start difference. First operand 66227 states and 110818 transitions. Second operand 7 states. [2019-10-07 14:31:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:00,263 INFO L93 Difference]: Finished difference Result 132561 states and 228981 transitions. [2019-10-07 14:31:00,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:31:00,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2019-10-07 14:31:00,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:00,697 INFO L225 Difference]: With dead ends: 132561 [2019-10-07 14:31:00,697 INFO L226 Difference]: Without dead ends: 68193 [2019-10-07 14:31:00,989 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 330 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:31:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68193 states. [2019-10-07 14:31:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68193 to 66455. [2019-10-07 14:31:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66455 states. [2019-10-07 14:31:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66455 states to 66455 states and 111046 transitions. [2019-10-07 14:31:04,136 INFO L78 Accepts]: Start accepts. Automaton has 66455 states and 111046 transitions. Word has length 169 [2019-10-07 14:31:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:04,136 INFO L462 AbstractCegarLoop]: Abstraction has 66455 states and 111046 transitions. [2019-10-07 14:31:04,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:31:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 66455 states and 111046 transitions. [2019-10-07 14:31:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:31:04,144 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:04,145 INFO L385 BasicCegarLoop]: trace histogram [4, 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] [2019-10-07 14:31:04,354 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:04,355 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:04,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1005717575, now seen corresponding path program 1 times [2019-10-07 14:31:04,355 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:04,356 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:04,356 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:04,356 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:31:04,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:04,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:05,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 14:31:05,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:31:05,272 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 14:31:05,509 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:31:05,509 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 7] total 9 [2019-10-07 14:31:05,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:31:05,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:31:05,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:31:05,511 INFO L87 Difference]: Start difference. First operand 66455 states and 111046 transitions. Second operand 7 states. [2019-10-07 14:31:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:10,697 INFO L93 Difference]: Finished difference Result 133017 states and 229251 transitions. [2019-10-07 14:31:10,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:31:10,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2019-10-07 14:31:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:11,119 INFO L225 Difference]: With dead ends: 133017 [2019-10-07 14:31:11,119 INFO L226 Difference]: Without dead ends: 68421 [2019-10-07 14:31:11,381 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:31:11,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68421 states. [2019-10-07 14:31:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68421 to 67023. [2019-10-07 14:31:13,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67023 states. [2019-10-07 14:31:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67023 states to 67023 states and 112248 transitions. [2019-10-07 14:31:14,290 INFO L78 Accepts]: Start accepts. Automaton has 67023 states and 112248 transitions. Word has length 170 [2019-10-07 14:31:14,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:14,290 INFO L462 AbstractCegarLoop]: Abstraction has 67023 states and 112248 transitions. [2019-10-07 14:31:14,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:31:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 67023 states and 112248 transitions. [2019-10-07 14:31:14,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:31:14,296 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:14,296 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:14,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:14,497 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:14,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:14,498 INFO L82 PathProgramCache]: Analyzing trace with hash 890752152, now seen corresponding path program 1 times [2019-10-07 14:31:14,498 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:14,499 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:14,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:14,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:31:14,683 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:14,683 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:14,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:15,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 3198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:31:15,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:31:15,442 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:15,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:31:15,676 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:31:15,676 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 6] total 16 [2019-10-07 14:31:15,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:31:15,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:31:15,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:31:15,677 INFO L87 Difference]: Start difference. First operand 67023 states and 112248 transitions. Second operand 6 states. [2019-10-07 14:31:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:31:23,574 INFO L93 Difference]: Finished difference Result 141955 states and 245309 transitions. [2019-10-07 14:31:23,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:31:23,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2019-10-07 14:31:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:31:24,174 INFO L225 Difference]: With dead ends: 141955 [2019-10-07 14:31:24,174 INFO L226 Difference]: Without dead ends: 59141 [2019-10-07 14:31:24,709 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 348 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:31:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59141 states. [2019-10-07 14:31:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59141 to 59141. [2019-10-07 14:31:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59141 states. [2019-10-07 14:31:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59141 states to 59141 states and 94827 transitions. [2019-10-07 14:31:27,343 INFO L78 Accepts]: Start accepts. Automaton has 59141 states and 94827 transitions. Word has length 178 [2019-10-07 14:31:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:31:27,344 INFO L462 AbstractCegarLoop]: Abstraction has 59141 states and 94827 transitions. [2019-10-07 14:31:27,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:31:27,344 INFO L276 IsEmpty]: Start isEmpty. Operand 59141 states and 94827 transitions. [2019-10-07 14:31:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 14:31:27,351 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:31:27,352 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:31:27,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:27,561 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:31:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:31:27,561 INFO L82 PathProgramCache]: Analyzing trace with hash -375125379, now seen corresponding path program 1 times [2019-10-07 14:31:27,561 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:31:27,562 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:27,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:27,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:31:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:31:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 14:31:27,765 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:31:27,765 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:31:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:31:28,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-07 14:31:28,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:31:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 14:31:28,573 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:31:29,020 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:31:29,419 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:31:29,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:29,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:29,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:29,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:29,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:31:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:31:29,514 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:31:29,539 INFO L162 IcfgInterpreter]: Started Sifa with 159 locations of interest [2019-10-07 14:31:29,540 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:31:29,545 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:31:29,551 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:31:29,551 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:32:17,555 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 754 [2019-10-07 14:32:22,986 WARN L191 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:32:23,399 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:32:23,709 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:32:23,910 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:32:24,469 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:24,932 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:25,371 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:26,294 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:27,307 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 1020 [2019-10-07 14:32:27,761 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:28,254 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:28,679 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:29,517 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:29,990 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:32:30,008 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 376 for LOIs [2019-10-07 14:32:30,220 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 14:32:30,327 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 14:32:30,656 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 903 [2019-10-07 14:32:30,658 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1064 for LOIs [2019-10-07 14:32:31,086 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:31,513 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:32,027 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:32,732 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:33,180 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:33,607 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:33,719 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:34,847 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:35,317 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:35,736 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:35,975 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:36,767 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:37,947 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1064 [2019-10-07 14:32:38,384 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:38,597 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:39,373 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:39,808 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:40,651 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:40,759 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:41,474 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:41,892 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:42,309 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:42,414 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:43,512 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:43,929 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:44,353 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:44,460 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:47,363 WARN L191 SmtUtils]: Spent 2.90 s on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:47,784 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:48,218 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:48,325 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:49,041 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:49,485 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:49,910 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:50,023 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:50,725 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:51,151 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:51,592 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:51,703 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:52,424 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:52,849 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:53,284 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:53,394 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:54,117 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:54,549 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:54,981 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:55,088 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:55,805 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:56,225 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:56,648 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:56,753 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:57,455 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:58,238 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:58,947 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:32:59,063 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:32:59,783 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:02,042 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:02,785 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:02,900 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:03,618 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:04,340 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:05,064 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:05,171 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:05,890 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:07,240 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:08,002 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:08,121 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:08,862 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:10,170 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1228 [2019-10-07 14:33:10,928 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:11,049 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:11,781 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:13,074 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1228 [2019-10-07 14:33:13,790 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:13,899 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:14,630 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:15,372 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:33:16,117 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:33:16,230 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:16,949 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1233 [2019-10-07 14:33:17,683 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:18,404 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:18,522 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:19,260 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:20,019 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:20,762 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:20,876 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:21,632 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:22,956 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1235 [2019-10-07 14:33:23,707 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:23,953 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:24,814 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:25,548 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:26,306 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:26,416 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:27,178 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:33:28,510 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:29,240 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:29,374 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:30,095 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:31,370 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:32,091 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:32,208 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:32,925 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:33,649 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:34,383 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:34,498 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:35,225 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:35,979 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:36,706 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:36,820 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:37,556 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:38,804 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:33:39,518 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:33:39,641 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:40,379 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:41,616 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:33:42,324 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:33:42,432 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:43,145 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:44,333 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1226 [2019-10-07 14:33:45,061 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:33:45,174 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:45,905 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:47,136 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1228 [2019-10-07 14:33:47,856 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:33:47,976 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:33:48,698 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1230 [2019-10-07 14:33:50,010 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:50,726 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:50,839 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:51,550 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:52,818 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:53,531 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:53,659 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:54,371 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:55,080 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:55,798 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:55,905 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:56,611 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:57,910 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:33:58,618 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:33:58,730 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:33:59,436 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:00,725 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:34:01,432 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:01,548 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:02,274 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:02,983 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:03,688 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:03,795 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:04,515 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:05,268 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:05,986 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:06,102 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:06,825 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:08,108 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1228 [2019-10-07 14:34:08,820 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:08,932 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:09,643 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:10,935 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1228 [2019-10-07 14:34:11,654 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:11,764 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:12,483 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:13,689 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:34:14,406 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:14,523 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:15,227 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:16,549 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:34:17,256 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:17,371 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:18,074 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:19,355 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:34:20,052 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:20,165 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:20,869 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:21,583 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:22,298 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:22,404 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:23,115 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:24,363 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:34:25,068 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:25,179 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:25,891 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:27,096 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:34:27,810 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:27,922 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:28,632 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:29,356 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:30,074 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:30,185 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:30,901 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:32,193 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1228 [2019-10-07 14:34:32,922 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:33,063 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:33,790 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:35,094 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1230 [2019-10-07 14:34:35,820 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1230 [2019-10-07 14:34:35,952 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:36,688 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1230 [2019-10-07 14:34:38,030 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1235 [2019-10-07 14:34:38,764 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:34:38,877 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:39,605 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:34:40,914 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1235 [2019-10-07 14:34:41,660 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:34:41,779 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:42,516 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1235 [2019-10-07 14:34:43,822 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:34:44,549 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:44,665 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:45,383 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:46,713 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:34:47,435 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:47,550 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:48,266 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:48,985 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:49,712 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:49,819 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:34:50,545 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:34:51,803 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:34:52,524 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:52,637 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:53,355 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:54,098 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:54,837 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:54,955 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:55,680 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:56,913 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1226 [2019-10-07 14:34:57,640 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:34:57,749 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:34:58,486 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:34:59,829 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1235 DAG size of output: 1228 [2019-10-07 14:35:00,547 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:00,659 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:35:01,392 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:02,708 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1230 [2019-10-07 14:35:03,436 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1230 [2019-10-07 14:35:03,549 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:35:04,269 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1230 [2019-10-07 14:35:05,590 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:35:06,321 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:06,437 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:07,180 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:08,506 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:35:09,228 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:09,343 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:10,065 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:11,389 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:35:12,111 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:12,230 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:12,947 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:14,254 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:35:14,985 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:15,104 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:15,826 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:16,542 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:17,287 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:17,393 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:18,116 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:18,867 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:19,606 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:19,719 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:35:20,451 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:21,205 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:21,932 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:22,049 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2019-10-07 14:35:22,806 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1228 [2019-10-07 14:35:22,812 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1086 for LOIs [2019-10-07 14:35:23,273 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:35:23,736 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:35:23,847 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:24,576 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:24,586 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1038 for LOIs [2019-10-07 14:35:24,973 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:35:25,372 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:35:25,481 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 428 [2019-10-07 14:35:26,202 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:35:26,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:26,466 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:35:26,473 INFO L168 Benchmark]: Toolchain (without parser) took 343944.02 ms. Allocated memory was 133.7 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 95.7 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,473 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 116.9 MB in the beginning and 116.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1108.95 ms. Allocated memory was 133.7 MB in the beginning and 198.7 MB in the end (delta: 65.0 MB). Free memory was 95.5 MB in the beginning and 136.9 MB in the end (delta: -41.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,474 INFO L168 Benchmark]: Boogie Preprocessor took 200.78 ms. Allocated memory is still 198.7 MB. Free memory was 136.9 MB in the beginning and 127.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,474 INFO L168 Benchmark]: RCFGBuilder took 5374.94 ms. Allocated memory was 198.7 MB in the beginning and 329.8 MB in the end (delta: 131.1 MB). Free memory was 127.5 MB in the beginning and 128.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 129.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,477 INFO L168 Benchmark]: TraceAbstraction took 337254.33 ms. Allocated memory was 329.8 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 128.6 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 968.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:35:26,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 116.9 MB in the beginning and 116.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1108.95 ms. Allocated memory was 133.7 MB in the beginning and 198.7 MB in the end (delta: 65.0 MB). Free memory was 95.5 MB in the beginning and 136.9 MB in the end (delta: -41.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 200.78 ms. Allocated memory is still 198.7 MB. Free memory was 136.9 MB in the beginning and 127.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5374.94 ms. Allocated memory was 198.7 MB in the beginning and 329.8 MB in the end (delta: 131.1 MB). Free memory was 127.5 MB in the beginning and 128.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 129.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 337254.33 ms. Allocated memory was 329.8 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 128.6 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 968.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...