java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:35:23,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:35:23,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:35:23,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:35:23,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:35:23,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:35:23,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:35:23,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:35:23,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:35:23,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:35:23,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:35:23,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:35:23,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:35:23,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:35:23,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:35:23,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:35:23,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:35:23,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:35:23,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:35:23,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:35:23,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:35:23,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:35:23,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:35:23,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:35:23,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:35:23,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:35:23,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:35:23,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:35:23,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:35:23,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:35:23,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:35:23,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:35:23,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:35:23,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:35:23,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:35:23,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:35:23,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:35:23,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:35:23,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:35:23,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:35:23,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:35:23,502 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 14:35:23,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:35:23,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:35:23,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:35:23,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:35:23,518 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:35:23,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:35:23,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:35:23,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:35:23,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:35:23,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:35:23,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:35:23,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:35:23,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:35:23,520 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:35:23,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:35:23,520 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:35:23,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:35:23,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:35:23,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:35:23,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:35:23,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:35:23,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:35:23,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:35:23,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:35:23,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:35:23,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:35:23,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:35:23,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:35:23,523 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 14:35:23,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:35:23,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:35:23,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:35:23,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:35:23,806 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:35:23,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product29.cil.c [2019-10-07 14:35:23,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229d1a5ef/fa2e18f9482544058b80f526bf786a77/FLAG28d319506 [2019-10-07 14:35:24,478 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:35:24,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product29.cil.c [2019-10-07 14:35:24,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229d1a5ef/fa2e18f9482544058b80f526bf786a77/FLAG28d319506 [2019-10-07 14:35:24,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229d1a5ef/fa2e18f9482544058b80f526bf786a77 [2019-10-07 14:35:24,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:35:24,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:35:24,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:35:24,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:35:24,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:35:24,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:35:24" (1/1) ... [2019-10-07 14:35:24,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc1a0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:24, skipping insertion in model container [2019-10-07 14:35:24,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:35:24" (1/1) ... [2019-10-07 14:35:24,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:35:24,841 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:35:25,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:35:25,605 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:35:25,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:35:25,820 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:35:25,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25 WrapperNode [2019-10-07 14:35:25,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:35:25,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:35:25,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:35:25,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:35:25,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:25,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:25,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:25,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:25,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:25,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:26,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (1/1) ... [2019-10-07 14:35:26,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:35:26,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:35:26,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:35:26,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:35:26,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (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 14:35:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:35:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:35:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:35:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:35:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:35:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:35:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:35:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:35:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:35:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:35:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:35:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:35:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:35:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:35:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:35:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:35:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:35:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:35:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:35:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:35:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:35:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:35:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:35:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:35:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:35:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:35:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:35:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:35:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:35:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:35:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:35:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:35:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:35:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:35:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:35:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:35:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:35:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:35:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:35:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:35:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:35:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:35:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:35:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:35:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:35:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:35:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:35:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:35:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:35:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:35:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:35:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:35:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:35:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:35:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:35:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:35:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:35:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:35:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:35:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:35:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:35:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:35:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:35:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:35:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:35:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:35:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:35:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:35:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:35:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:35:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:35:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:35:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:35:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:35:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:35:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:35:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:35:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:35:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:35:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:35:30,822 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:35:30,822 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:35:30,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:35:30 BoogieIcfgContainer [2019-10-07 14:35:30,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:35:30,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:35:30,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:35:30,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:35:30,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:35:24" (1/3) ... [2019-10-07 14:35:30,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdfd3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:35:30, skipping insertion in model container [2019-10-07 14:35:30,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:25" (2/3) ... [2019-10-07 14:35:30,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdfd3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:35:30, skipping insertion in model container [2019-10-07 14:35:30,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:35:30" (3/3) ... [2019-10-07 14:35:30,831 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product29.cil.c [2019-10-07 14:35:30,841 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:35:30,849 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:35:30,860 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:35:30,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:35:30,891 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:35:30,891 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:35:30,891 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:35:30,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:35:30,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:35:30,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:35:30,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:35:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-10-07 14:35:30,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-07 14:35:30,948 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:30,949 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:30,951 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:30,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:30,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1755162486, now seen corresponding path program 1 times [2019-10-07 14:35:30,966 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:30,966 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:30,967 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:30,967 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:31,640 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:31,641 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:31,641 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:35:31,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:35:31,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:35:31,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:35:31,669 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 9 states. [2019-10-07 14:35:36,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:36,532 INFO L93 Difference]: Finished difference Result 1388 states and 2117 transitions. [2019-10-07 14:35:36,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 14:35:36,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-07 14:35:36,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:36,564 INFO L225 Difference]: With dead ends: 1388 [2019-10-07 14:35:36,564 INFO L226 Difference]: Without dead ends: 971 [2019-10-07 14:35:36,575 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-10-07 14:35:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-07 14:35:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 939. [2019-10-07 14:35:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-10-07 14:35:36,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1428 transitions. [2019-10-07 14:35:36,758 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1428 transitions. Word has length 106 [2019-10-07 14:35:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:36,759 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 1428 transitions. [2019-10-07 14:35:36,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:35:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1428 transitions. [2019-10-07 14:35:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-07 14:35:36,773 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:36,773 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:36,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:36,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:36,774 INFO L82 PathProgramCache]: Analyzing trace with hash -536835171, now seen corresponding path program 1 times [2019-10-07 14:35:36,774 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:36,774 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:36,775 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:36,775 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:37,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:37,043 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,044 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:37,044 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:37,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:37,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:37,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:37,046 INFO L87 Difference]: Start difference. First operand 939 states and 1428 transitions. Second operand 7 states. [2019-10-07 14:35:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:37,174 INFO L93 Difference]: Finished difference Result 1503 states and 2301 transitions. [2019-10-07 14:35:37,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:35:37,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2019-10-07 14:35:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:37,189 INFO L225 Difference]: With dead ends: 1503 [2019-10-07 14:35:37,189 INFO L226 Difference]: Without dead ends: 976 [2019-10-07 14:35:37,194 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2019-10-07 14:35:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 960. [2019-10-07 14:35:37,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2019-10-07 14:35:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1458 transitions. [2019-10-07 14:35:37,300 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1458 transitions. Word has length 111 [2019-10-07 14:35:37,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:37,301 INFO L462 AbstractCegarLoop]: Abstraction has 960 states and 1458 transitions. [2019-10-07 14:35:37,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1458 transitions. [2019-10-07 14:35:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:35:37,308 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:37,308 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:37,309 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:37,319 INFO L82 PathProgramCache]: Analyzing trace with hash 444756279, now seen corresponding path program 1 times [2019-10-07 14:35:37,319 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:37,319 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:37,591 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,592 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:37,592 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:37,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:37,595 INFO L87 Difference]: Start difference. First operand 960 states and 1458 transitions. Second operand 7 states. [2019-10-07 14:35:37,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:37,742 INFO L93 Difference]: Finished difference Result 1532 states and 2339 transitions. [2019-10-07 14:35:37,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:35:37,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-07 14:35:37,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:37,750 INFO L225 Difference]: With dead ends: 1532 [2019-10-07 14:35:37,750 INFO L226 Difference]: Without dead ends: 991 [2019-10-07 14:35:37,753 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2019-10-07 14:35:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 963. [2019-10-07 14:35:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-10-07 14:35:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1461 transitions. [2019-10-07 14:35:37,811 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1461 transitions. Word has length 112 [2019-10-07 14:35:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:37,813 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1461 transitions. [2019-10-07 14:35:37,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1461 transitions. [2019-10-07 14:35:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:35:37,818 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:37,818 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:37,818 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:37,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1911377751, now seen corresponding path program 1 times [2019-10-07 14:35:37,819 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:37,819 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:37,996 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,996 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:37,996 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:37,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:37,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:37,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:37,998 INFO L87 Difference]: Start difference. First operand 963 states and 1461 transitions. Second operand 7 states. [2019-10-07 14:35:38,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:38,084 INFO L93 Difference]: Finished difference Result 1537 states and 2344 transitions. [2019-10-07 14:35:38,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:35:38,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-07 14:35:38,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:38,093 INFO L225 Difference]: With dead ends: 1537 [2019-10-07 14:35:38,093 INFO L226 Difference]: Without dead ends: 994 [2019-10-07 14:35:38,096 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2019-10-07 14:35:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 966. [2019-10-07 14:35:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2019-10-07 14:35:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1464 transitions. [2019-10-07 14:35:38,148 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1464 transitions. Word has length 112 [2019-10-07 14:35:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:38,149 INFO L462 AbstractCegarLoop]: Abstraction has 966 states and 1464 transitions. [2019-10-07 14:35:38,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1464 transitions. [2019-10-07 14:35:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-07 14:35:38,153 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:38,153 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:38,154 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:38,154 INFO L82 PathProgramCache]: Analyzing trace with hash -505526049, now seen corresponding path program 1 times [2019-10-07 14:35:38,154 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:38,154 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:38,154 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:38,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:38,402 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:38,402 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:38,403 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:38,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:38,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:38,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:38,405 INFO L87 Difference]: Start difference. First operand 966 states and 1464 transitions. Second operand 7 states. [2019-10-07 14:35:42,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:42,395 INFO L93 Difference]: Finished difference Result 2072 states and 3161 transitions. [2019-10-07 14:35:42,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:35:42,396 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-10-07 14:35:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:42,406 INFO L225 Difference]: With dead ends: 2072 [2019-10-07 14:35:42,406 INFO L226 Difference]: Without dead ends: 1402 [2019-10-07 14:35:42,411 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:35:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2019-10-07 14:35:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1352. [2019-10-07 14:35:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2019-10-07 14:35:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2009 transitions. [2019-10-07 14:35:42,485 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2009 transitions. Word has length 116 [2019-10-07 14:35:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:42,486 INFO L462 AbstractCegarLoop]: Abstraction has 1352 states and 2009 transitions. [2019-10-07 14:35:42,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2009 transitions. [2019-10-07 14:35:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:35:42,489 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:42,490 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:42,490 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:42,491 INFO L82 PathProgramCache]: Analyzing trace with hash -356656398, now seen corresponding path program 1 times [2019-10-07 14:35:42,491 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:42,491 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,491 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,491 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:42,669 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,669 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:42,669 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:35:42,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:35:42,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:35:42,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:35:42,671 INFO L87 Difference]: Start difference. First operand 1352 states and 2009 transitions. Second operand 9 states. [2019-10-07 14:35:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:42,947 INFO L93 Difference]: Finished difference Result 2636 states and 4022 transitions. [2019-10-07 14:35:42,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:35:42,948 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2019-10-07 14:35:42,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:42,958 INFO L225 Difference]: With dead ends: 2636 [2019-10-07 14:35:42,958 INFO L226 Difference]: Without dead ends: 1556 [2019-10-07 14:35:42,966 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:35:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-10-07 14:35:43,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2019-10-07 14:35:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2019-10-07 14:35:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2313 transitions. [2019-10-07 14:35:43,043 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2313 transitions. Word has length 118 [2019-10-07 14:35:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:43,044 INFO L462 AbstractCegarLoop]: Abstraction has 1556 states and 2313 transitions. [2019-10-07 14:35:43,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:35:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2313 transitions. [2019-10-07 14:35:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:35:43,047 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:43,047 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:43,048 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:43,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1523904988, now seen corresponding path program 1 times [2019-10-07 14:35:43,048 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:43,048 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,049 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,049 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:43,203 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,203 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:43,204 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:35:43,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:35:43,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:35:43,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:35:43,205 INFO L87 Difference]: Start difference. First operand 1556 states and 2313 transitions. Second operand 6 states. [2019-10-07 14:35:47,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:47,149 INFO L93 Difference]: Finished difference Result 6381 states and 9869 transitions. [2019-10-07 14:35:47,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:35:47,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-10-07 14:35:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:47,185 INFO L225 Difference]: With dead ends: 6381 [2019-10-07 14:35:47,185 INFO L226 Difference]: Without dead ends: 4868 [2019-10-07 14:35:47,199 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:35:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2019-10-07 14:35:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4493. [2019-10-07 14:35:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4493 states. [2019-10-07 14:35:47,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6836 transitions. [2019-10-07 14:35:47,470 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6836 transitions. Word has length 119 [2019-10-07 14:35:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:47,471 INFO L462 AbstractCegarLoop]: Abstraction has 4493 states and 6836 transitions. [2019-10-07 14:35:47,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:35:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6836 transitions. [2019-10-07 14:35:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:35:47,475 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:47,475 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:47,475 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:47,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:47,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1117673141, now seen corresponding path program 1 times [2019-10-07 14:35:47,476 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:47,476 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:47,476 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:47,476 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:35:47,657 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:47,657 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:47,657 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:47,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:47,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:47,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:47,658 INFO L87 Difference]: Start difference. First operand 4493 states and 6836 transitions. Second operand 7 states. [2019-10-07 14:35:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:50,918 INFO L93 Difference]: Finished difference Result 8059 states and 12329 transitions. [2019-10-07 14:35:50,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:35:50,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-07 14:35:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:50,962 INFO L225 Difference]: With dead ends: 8059 [2019-10-07 14:35:50,962 INFO L226 Difference]: Without dead ends: 4663 [2019-10-07 14:35:50,985 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:35:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2019-10-07 14:35:51,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4577. [2019-10-07 14:35:51,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4577 states. [2019-10-07 14:35:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 6942 transitions. [2019-10-07 14:35:51,218 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 6942 transitions. Word has length 120 [2019-10-07 14:35:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:51,219 INFO L462 AbstractCegarLoop]: Abstraction has 4577 states and 6942 transitions. [2019-10-07 14:35:51,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 6942 transitions. [2019-10-07 14:35:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:35:51,224 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:51,224 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, 1, 1, 1, 1] [2019-10-07 14:35:51,224 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:51,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:51,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1583558832, now seen corresponding path program 1 times [2019-10-07 14:35:51,225 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:51,225 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:51,225 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:51,225 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:51,500 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 14:35:51,500 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:51,500 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:51,501 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:51,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:51,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:51,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:51,502 INFO L87 Difference]: Start difference. First operand 4577 states and 6942 transitions. Second operand 3 states. [2019-10-07 14:35:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:51,836 INFO L93 Difference]: Finished difference Result 13485 states and 20655 transitions. [2019-10-07 14:35:51,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:51,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 14:35:51,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:51,917 INFO L225 Difference]: With dead ends: 13485 [2019-10-07 14:35:51,917 INFO L226 Difference]: Without dead ends: 8951 [2019-10-07 14:35:51,945 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:51,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8951 states. [2019-10-07 14:35:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8951 to 8859. [2019-10-07 14:35:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8859 states. [2019-10-07 14:35:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8859 states to 8859 states and 13555 transitions. [2019-10-07 14:35:52,401 INFO L78 Accepts]: Start accepts. Automaton has 8859 states and 13555 transitions. Word has length 124 [2019-10-07 14:35:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:52,402 INFO L462 AbstractCegarLoop]: Abstraction has 8859 states and 13555 transitions. [2019-10-07 14:35:52,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 8859 states and 13555 transitions. [2019-10-07 14:35:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:35:52,406 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:52,406 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, 1, 1, 1, 1, 1] [2019-10-07 14:35:52,406 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:52,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1846975822, now seen corresponding path program 1 times [2019-10-07 14:35:52,407 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:52,407 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:52,407 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:52,407 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:52,553 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 14:35:52,553 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:52,554 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:52,554 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:52,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:52,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:52,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:52,555 INFO L87 Difference]: Start difference. First operand 8859 states and 13555 transitions. Second operand 3 states. [2019-10-07 14:35:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:53,292 INFO L93 Difference]: Finished difference Result 26332 states and 40777 transitions. [2019-10-07 14:35:53,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:53,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-07 14:35:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:53,444 INFO L225 Difference]: With dead ends: 26332 [2019-10-07 14:35:53,444 INFO L226 Difference]: Without dead ends: 17517 [2019-10-07 14:35:53,505 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17517 states. [2019-10-07 14:35:54,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17517 to 17424. [2019-10-07 14:35:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17424 states. [2019-10-07 14:35:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17424 states to 17424 states and 26937 transitions. [2019-10-07 14:35:54,415 INFO L78 Accepts]: Start accepts. Automaton has 17424 states and 26937 transitions. Word has length 125 [2019-10-07 14:35:54,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:54,416 INFO L462 AbstractCegarLoop]: Abstraction has 17424 states and 26937 transitions. [2019-10-07 14:35:54,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:54,416 INFO L276 IsEmpty]: Start isEmpty. Operand 17424 states and 26937 transitions. [2019-10-07 14:35:54,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-07 14:35:54,420 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:54,420 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:54,420 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:54,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:54,421 INFO L82 PathProgramCache]: Analyzing trace with hash -916493062, now seen corresponding path program 1 times [2019-10-07 14:35:54,421 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:54,421 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:54,421 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:54,421 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:55,448 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 14:35:55,448 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:55,448 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:55,448 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:55,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:55,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:55,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:55,450 INFO L87 Difference]: Start difference. First operand 17424 states and 26937 transitions. Second operand 3 states. [2019-10-07 14:35:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:56,178 INFO L93 Difference]: Finished difference Result 52027 states and 81822 transitions. [2019-10-07 14:35:56,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:56,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-07 14:35:56,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:56,521 INFO L225 Difference]: With dead ends: 52027 [2019-10-07 14:35:56,522 INFO L226 Difference]: Without dead ends: 34649 [2019-10-07 14:35:56,577 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34649 states. [2019-10-07 14:35:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34649 to 34555. [2019-10-07 14:35:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34555 states. [2019-10-07 14:35:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34555 states to 34555 states and 54227 transitions. [2019-10-07 14:35:58,280 INFO L78 Accepts]: Start accepts. Automaton has 34555 states and 54227 transitions. Word has length 127 [2019-10-07 14:35:58,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:58,280 INFO L462 AbstractCegarLoop]: Abstraction has 34555 states and 54227 transitions. [2019-10-07 14:35:58,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:58,281 INFO L276 IsEmpty]: Start isEmpty. Operand 34555 states and 54227 transitions. [2019-10-07 14:35:58,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:35:58,284 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:58,284 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:58,285 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:58,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:58,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1652201676, now seen corresponding path program 1 times [2019-10-07 14:35:58,285 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:58,285 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:58,287 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:58,287 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:58,410 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 14:35:58,410 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:58,410 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:58,410 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:58,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:58,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:58,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:58,412 INFO L87 Difference]: Start difference. First operand 34555 states and 54227 transitions. Second operand 3 states. [2019-10-07 14:36:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:01,359 INFO L93 Difference]: Finished difference Result 103418 states and 166603 transitions. [2019-10-07 14:36:01,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:36:01,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 14:36:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:01,729 INFO L225 Difference]: With dead ends: 103418 [2019-10-07 14:36:01,729 INFO L226 Difference]: Without dead ends: 68913 [2019-10-07 14:36:01,849 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:36:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68913 states. [2019-10-07 14:36:04,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68913 to 68818. [2019-10-07 14:36:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68818 states. [2019-10-07 14:36:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68818 states to 68818 states and 110613 transitions. [2019-10-07 14:36:04,707 INFO L78 Accepts]: Start accepts. Automaton has 68818 states and 110613 transitions. Word has length 128 [2019-10-07 14:36:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:04,708 INFO L462 AbstractCegarLoop]: Abstraction has 68818 states and 110613 transitions. [2019-10-07 14:36:04,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:36:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 68818 states and 110613 transitions. [2019-10-07 14:36:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:36:04,711 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:04,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:04,712 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash -322636164, now seen corresponding path program 1 times [2019-10-07 14:36:04,713 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:04,713 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:04,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:04,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:04,833 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 14:36:04,833 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:04,834 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:36:04,834 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:36:04,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:36:04,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:36:04,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:36:04,835 INFO L87 Difference]: Start difference. First operand 68818 states and 110613 transitions. Second operand 3 states. [2019-10-07 14:36:07,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:07,890 INFO L93 Difference]: Finished difference Result 73197 states and 118420 transitions. [2019-10-07 14:36:07,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:36:07,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-07 14:36:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:08,240 INFO L225 Difference]: With dead ends: 73197 [2019-10-07 14:36:08,240 INFO L226 Difference]: Without dead ends: 73184 [2019-10-07 14:36:08,296 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:36:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73184 states. [2019-10-07 14:36:10,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73184 to 73094. [2019-10-07 14:36:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73094 states. [2019-10-07 14:36:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73094 states to 73094 states and 118251 transitions. [2019-10-07 14:36:10,746 INFO L78 Accepts]: Start accepts. Automaton has 73094 states and 118251 transitions. Word has length 129 [2019-10-07 14:36:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:10,746 INFO L462 AbstractCegarLoop]: Abstraction has 73094 states and 118251 transitions. [2019-10-07 14:36:10,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:36:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 73094 states and 118251 transitions. [2019-10-07 14:36:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:36:10,752 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:10,752 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:10,752 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:10,753 INFO L82 PathProgramCache]: Analyzing trace with hash 779510740, now seen corresponding path program 1 times [2019-10-07 14:36:10,753 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:10,753 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:10,753 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:10,753 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:10,913 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:10,913 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:10,913 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 14:36:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:11,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:11,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 14:36:11,602 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:12,074 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:12,074 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:36:12,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:12,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:12,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:36:12,075 INFO L87 Difference]: Start difference. First operand 73094 states and 118251 transitions. Second operand 4 states. [2019-10-07 14:36:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:16,355 INFO L93 Difference]: Finished difference Result 152112 states and 251707 transitions. [2019-10-07 14:36:16,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:16,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2019-10-07 14:36:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:16,979 INFO L225 Difference]: With dead ends: 152112 [2019-10-07 14:36:16,979 INFO L226 Difference]: Without dead ends: 79061 [2019-10-07 14:36:17,387 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 361 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:36:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79061 states. [2019-10-07 14:36:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79061 to 79061. [2019-10-07 14:36:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79061 states. [2019-10-07 14:36:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79061 states to 79061 states and 129420 transitions. [2019-10-07 14:36:25,918 INFO L78 Accepts]: Start accepts. Automaton has 79061 states and 129420 transitions. Word has length 181 [2019-10-07 14:36:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:25,919 INFO L462 AbstractCegarLoop]: Abstraction has 79061 states and 129420 transitions. [2019-10-07 14:36:25,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 79061 states and 129420 transitions. [2019-10-07 14:36:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:36:25,928 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:25,928 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:26,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:26,139 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:26,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1030708020, now seen corresponding path program 1 times [2019-10-07 14:36:26,142 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:26,142 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:26,143 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:26,143 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:26,615 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 14:36:26,616 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:26,616 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:26,617 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 14:36:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:27,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:27,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:36:27,428 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:27,887 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:36:27,888 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:27,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:36:27,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:27,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:36:27,891 INFO L87 Difference]: Start difference. First operand 79061 states and 129420 transitions. Second operand 4 states. [2019-10-07 14:36:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:32,326 INFO L93 Difference]: Finished difference Result 164046 states and 273889 transitions. [2019-10-07 14:36:32,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:32,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2019-10-07 14:36:32,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:32,814 INFO L225 Difference]: With dead ends: 164046 [2019-10-07 14:36:32,814 INFO L226 Difference]: Without dead ends: 85028 [2019-10-07 14:36:33,002 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:36:33,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85028 states. [2019-10-07 14:36:35,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85028 to 85028. [2019-10-07 14:36:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85028 states. [2019-10-07 14:36:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85028 states to 85028 states and 140589 transitions. [2019-10-07 14:36:35,723 INFO L78 Accepts]: Start accepts. Automaton has 85028 states and 140589 transitions. Word has length 186 [2019-10-07 14:36:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:35,724 INFO L462 AbstractCegarLoop]: Abstraction has 85028 states and 140589 transitions. [2019-10-07 14:36:35,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 85028 states and 140589 transitions. [2019-10-07 14:36:35,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 14:36:35,732 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:35,733 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:35,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:35,943 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:35,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:35,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1690656900, now seen corresponding path program 1 times [2019-10-07 14:36:35,944 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:35,944 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:35,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:35,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:35,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:36:36,307 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:36,307 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:36,308 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 14:36:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:36,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 3422 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:36,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:36:37,002 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:36:37,388 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:37,388 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:36:37,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:37,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:36:37,390 INFO L87 Difference]: Start difference. First operand 85028 states and 140589 transitions. Second operand 4 states. [2019-10-07 14:36:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:39,797 INFO L93 Difference]: Finished difference Result 175980 states and 296071 transitions. [2019-10-07 14:36:39,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:39,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2019-10-07 14:36:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:40,133 INFO L225 Difference]: With dead ends: 175980 [2019-10-07 14:36:40,133 INFO L226 Difference]: Without dead ends: 90995 [2019-10-07 14:36:40,297 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:36:40,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90995 states. [2019-10-07 14:36:45,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90995 to 90995. [2019-10-07 14:36:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90995 states. [2019-10-07 14:36:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90995 states to 90995 states and 151758 transitions. [2019-10-07 14:36:46,080 INFO L78 Accepts]: Start accepts. Automaton has 90995 states and 151758 transitions. Word has length 190 [2019-10-07 14:36:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:46,081 INFO L462 AbstractCegarLoop]: Abstraction has 90995 states and 151758 transitions. [2019-10-07 14:36:46,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 90995 states and 151758 transitions. [2019-10-07 14:36:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 14:36:46,087 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:46,087 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:46,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:46,296 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:46,297 INFO L82 PathProgramCache]: Analyzing trace with hash -696783330, now seen corresponding path program 1 times [2019-10-07 14:36:46,297 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:46,297 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:46,297 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:46,297 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:36:46,660 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:46,660 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:46,660 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 14:36:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:47,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:47,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:36:47,853 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:36:48,248 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:48,248 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:36:48,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:48,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:48,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:36:48,249 INFO L87 Difference]: Start difference. First operand 90995 states and 151758 transitions. Second operand 4 states. [2019-10-07 14:36:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:50,073 INFO L93 Difference]: Finished difference Result 187914 states and 318253 transitions. [2019-10-07 14:36:50,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:50,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2019-10-07 14:36:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:53,884 INFO L225 Difference]: With dead ends: 187914 [2019-10-07 14:36:53,884 INFO L226 Difference]: Without dead ends: 96962 [2019-10-07 14:36:54,023 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:36:54,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96962 states. [2019-10-07 14:36:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96962 to 96962. [2019-10-07 14:36:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96962 states. [2019-10-07 14:36:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96962 states to 96962 states and 162927 transitions. [2019-10-07 14:36:56,593 INFO L78 Accepts]: Start accepts. Automaton has 96962 states and 162927 transitions. Word has length 193 [2019-10-07 14:36:56,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:56,593 INFO L462 AbstractCegarLoop]: Abstraction has 96962 states and 162927 transitions. [2019-10-07 14:36:56,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:56,594 INFO L276 IsEmpty]: Start isEmpty. Operand 96962 states and 162927 transitions. [2019-10-07 14:36:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:36:56,599 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:56,600 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:56,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:56,811 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:56,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:56,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1935691602, now seen corresponding path program 1 times [2019-10-07 14:36:56,811 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:56,811 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:56,812 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:56,812 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:56,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-07 14:36:57,235 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:57,235 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:57,236 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 14:36:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:57,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 3427 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:57,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:36:58,081 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:36:58,637 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:36:58,637 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [19] total 22 [2019-10-07 14:36:58,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:36:58,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:36:58,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:36:58,640 INFO L87 Difference]: Start difference. First operand 96962 states and 162927 transitions. Second operand 5 states. [2019-10-07 14:37:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:01,276 INFO L93 Difference]: Finished difference Result 199848 states and 340435 transitions. [2019-10-07 14:37:01,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:37:01,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2019-10-07 14:37:01,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:01,636 INFO L225 Difference]: With dead ends: 199848 [2019-10-07 14:37:01,636 INFO L226 Difference]: Without dead ends: 102929 [2019-10-07 14:37:01,794 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:37:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102929 states. [2019-10-07 14:37:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102929 to 102929. [2019-10-07 14:37:08,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102929 states. [2019-10-07 14:37:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102929 states to 102929 states and 174096 transitions. [2019-10-07 14:37:08,347 INFO L78 Accepts]: Start accepts. Automaton has 102929 states and 174096 transitions. Word has length 195 [2019-10-07 14:37:08,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:37:08,348 INFO L462 AbstractCegarLoop]: Abstraction has 102929 states and 174096 transitions. [2019-10-07 14:37:08,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:37:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 102929 states and 174096 transitions. [2019-10-07 14:37:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:37:08,354 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:08,355 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:08,562 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:37:08,563 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:08,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:08,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1492450845, now seen corresponding path program 1 times [2019-10-07 14:37:08,563 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:08,563 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:08,563 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:08,564 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:37:08,927 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:08,928 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:37:08,928 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 14:37:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:09,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 3424 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:37:09,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:37:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-07 14:37:09,792 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:37:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-07 14:37:10,548 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:37:10,548 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [19] total 27 [2019-10-07 14:37:10,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:37:10,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:37:10,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:37:10,551 INFO L87 Difference]: Start difference. First operand 102929 states and 174096 transitions. Second operand 10 states. [2019-10-07 14:37:17,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:17,408 INFO L93 Difference]: Finished difference Result 254731 states and 431198 transitions. [2019-10-07 14:37:17,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:37:17,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2019-10-07 14:37:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:17,965 INFO L225 Difference]: With dead ends: 254731 [2019-10-07 14:37:17,965 INFO L226 Difference]: Without dead ends: 151861 [2019-10-07 14:37:18,156 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 389 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:37:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151861 states. [2019-10-07 14:37:27,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151861 to 151421. [2019-10-07 14:37:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151421 states. [2019-10-07 14:37:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151421 states to 151421 states and 255653 transitions. [2019-10-07 14:37:28,415 INFO L78 Accepts]: Start accepts. Automaton has 151421 states and 255653 transitions. Word has length 195 [2019-10-07 14:37:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:37:28,415 INFO L462 AbstractCegarLoop]: Abstraction has 151421 states and 255653 transitions. [2019-10-07 14:37:28,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:37:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 151421 states and 255653 transitions. [2019-10-07 14:37:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:37:28,420 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:37:28,421 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:37:28,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:37:28,622 INFO L410 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:37:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:37:28,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1860367, now seen corresponding path program 1 times [2019-10-07 14:37:28,623 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:37:28,623 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:28,624 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:28,624 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:37:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:37:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:37:28,939 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:37:28,939 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:37:28,940 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 14:37:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:37:29,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 14:37:29,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:37:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-07 14:37:29,874 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:37:30,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:30,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:30,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:30,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:30,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:30,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:31,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:31,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:31,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:37:31,250 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-07 14:37:31,251 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:37:31,251 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 31 [2019-10-07 14:37:31,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:37:31,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:37:31,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:37:31,255 INFO L87 Difference]: Start difference. First operand 151421 states and 255653 transitions. Second operand 14 states. [2019-10-07 14:37:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:37:44,880 INFO L93 Difference]: Finished difference Result 380199 states and 672550 transitions. [2019-10-07 14:37:44,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-07 14:37:44,881 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 198 [2019-10-07 14:37:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:37:45,794 INFO L225 Difference]: With dead ends: 380199 [2019-10-07 14:37:45,795 INFO L226 Difference]: Without dead ends: 228825 [2019-10-07 14:37:46,203 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 391 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=1531, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:37:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228825 states. [2019-10-07 14:38:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228825 to 224802. [2019-10-07 14:38:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224802 states. [2019-10-07 14:38:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224802 states to 224802 states and 377388 transitions. [2019-10-07 14:38:02,108 INFO L78 Accepts]: Start accepts. Automaton has 224802 states and 377388 transitions. Word has length 198 [2019-10-07 14:38:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:02,109 INFO L462 AbstractCegarLoop]: Abstraction has 224802 states and 377388 transitions. [2019-10-07 14:38:02,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:38:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 224802 states and 377388 transitions. [2019-10-07 14:38:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:38:02,114 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:02,115 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:02,315 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:38:02,316 INFO L410 AbstractCegarLoop]: === Iteration 21 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:02,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:02,317 INFO L82 PathProgramCache]: Analyzing trace with hash -180016342, now seen corresponding path program 1 times [2019-10-07 14:38:02,317 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:02,317 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:02,317 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,318 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:38:02,649 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:02,650 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:02,650 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 14:38:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:03,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:38:03,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-07 14:38:03,528 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-07 14:38:04,043 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:38:04,044 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [19] total 26 [2019-10-07 14:38:04,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:38:04,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:38:04,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:38:04,046 INFO L87 Difference]: Start difference. First operand 224802 states and 377388 transitions. Second operand 9 states. [2019-10-07 14:38:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:14,443 INFO L93 Difference]: Finished difference Result 226463 states and 384671 transitions. [2019-10-07 14:38:14,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:38:14,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 198 [2019-10-07 14:38:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:15,673 INFO L225 Difference]: With dead ends: 226463 [2019-10-07 14:38:15,673 INFO L226 Difference]: Without dead ends: 226345 [2019-10-07 14:38:15,762 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 397 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:38:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226345 states. [2019-10-07 14:38:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226345 to 225108. [2019-10-07 14:38:24,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225108 states. [2019-10-07 14:38:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225108 states to 225108 states and 377979 transitions. [2019-10-07 14:38:24,822 INFO L78 Accepts]: Start accepts. Automaton has 225108 states and 377979 transitions. Word has length 198 [2019-10-07 14:38:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:24,822 INFO L462 AbstractCegarLoop]: Abstraction has 225108 states and 377979 transitions. [2019-10-07 14:38:24,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:38:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 225108 states and 377979 transitions. [2019-10-07 14:38:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-07 14:38:24,832 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:24,832 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:25,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:38:25,041 INFO L410 AbstractCegarLoop]: === Iteration 22 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:25,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2024371332, now seen corresponding path program 1 times [2019-10-07 14:38:25,041 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:25,042 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:25,042 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:25,042 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:38:25,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:25,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:25,444 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 14:38:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:27,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 3445 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:38:27,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-07 14:38:27,261 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-10-07 14:38:27,655 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:38:27,655 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [19] total 22 [2019-10-07 14:38:27,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:38:27,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:38:27,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:38:27,656 INFO L87 Difference]: Start difference. First operand 225108 states and 377979 transitions. Second operand 5 states. [2019-10-07 14:38:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:36,672 INFO L93 Difference]: Finished difference Result 225226 states and 378111 transitions. [2019-10-07 14:38:36,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:38:36,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-07 14:38:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:37,484 INFO L225 Difference]: With dead ends: 225226 [2019-10-07 14:38:37,484 INFO L226 Difference]: Without dead ends: 225108 [2019-10-07 14:38:37,601 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 411 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:38:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225108 states. [2019-10-07 14:38:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225108 to 225108. [2019-10-07 14:38:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225108 states. [2019-10-07 14:38:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225108 states to 225108 states and 377485 transitions. [2019-10-07 14:38:46,313 INFO L78 Accepts]: Start accepts. Automaton has 225108 states and 377485 transitions. Word has length 203 [2019-10-07 14:38:46,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:46,313 INFO L462 AbstractCegarLoop]: Abstraction has 225108 states and 377485 transitions. [2019-10-07 14:38:46,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:38:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 225108 states and 377485 transitions. [2019-10-07 14:38:46,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-07 14:38:46,322 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:46,322 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:46,530 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:38:46,530 INFO L410 AbstractCegarLoop]: === Iteration 23 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash 370101611, now seen corresponding path program 1 times [2019-10-07 14:38:46,532 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:46,532 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:46,532 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:46,532 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:38:46,828 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:46,829 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:46,829 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 14:38:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:47,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 3488 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:38:47,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:38:48,649 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:49,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:38:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:38:49,471 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:38:49,471 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [19] total 33 [2019-10-07 14:38:49,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 14:38:49,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 14:38:49,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:38:49,474 INFO L87 Difference]: Start difference. First operand 225108 states and 377485 transitions. Second operand 16 states. [2019-10-07 14:39:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:39:08,531 INFO L93 Difference]: Finished difference Result 504412 states and 870417 transitions. [2019-10-07 14:39:08,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-07 14:39:08,531 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 218 [2019-10-07 14:39:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:39:10,847 INFO L225 Difference]: With dead ends: 504412 [2019-10-07 14:39:10,847 INFO L226 Difference]: Without dead ends: 277270 [2019-10-07 14:39:11,310 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 438 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=1995, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:39:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277270 states. [2019-10-07 14:39:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277270 to 276157. [2019-10-07 14:39:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276157 states. [2019-10-07 14:39:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276157 states to 276157 states and 468145 transitions. [2019-10-07 14:39:33,427 INFO L78 Accepts]: Start accepts. Automaton has 276157 states and 468145 transitions. Word has length 218 [2019-10-07 14:39:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:39:33,428 INFO L462 AbstractCegarLoop]: Abstraction has 276157 states and 468145 transitions. [2019-10-07 14:39:33,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 14:39:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 276157 states and 468145 transitions. [2019-10-07 14:39:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-07 14:39:33,436 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:39:33,436 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:39:33,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:39:33,638 INFO L410 AbstractCegarLoop]: === Iteration 24 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:39:33,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:39:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 725749468, now seen corresponding path program 1 times [2019-10-07 14:39:33,639 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:39:33,639 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:39:33,639 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:39:33,640 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:39:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:39:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:39:33,979 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-07 14:39:33,979 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:39:33,979 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:39:33,980 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 14:39:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:39:34,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 3492 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:39:34,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:39:34,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:39:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:39:34,959 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:39:41,751 WARN L191 SmtUtils]: Spent 6.66 s on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:39:41,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:39:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:39:42,192 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:39:42,192 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [19] total 24 [2019-10-07 14:39:42,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:39:42,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:39:42,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2019-10-07 14:39:42,193 INFO L87 Difference]: Start difference. First operand 276157 states and 468145 transitions. Second operand 7 states. [2019-10-07 14:39:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:39:47,834 INFO L93 Difference]: Finished difference Result 277717 states and 470412 transitions. [2019-10-07 14:39:47,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:39:47,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2019-10-07 14:39:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:39:49,422 INFO L225 Difference]: With dead ends: 277717 [2019-10-07 14:39:49,422 INFO L226 Difference]: Without dead ends: 277599 [2019-10-07 14:39:49,548 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 442 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:39:49,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277599 states. [2019-10-07 14:40:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277599 to 277469. [2019-10-07 14:40:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277469 states. [2019-10-07 14:40:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277469 states to 277469 states and 469455 transitions. [2019-10-07 14:40:13,834 INFO L78 Accepts]: Start accepts. Automaton has 277469 states and 469455 transitions. Word has length 219 [2019-10-07 14:40:13,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:40:13,835 INFO L462 AbstractCegarLoop]: Abstraction has 277469 states and 469455 transitions. [2019-10-07 14:40:13,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:40:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 277469 states and 469455 transitions. [2019-10-07 14:40:13,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2019-10-07 14:40:13,846 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:40:13,847 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:14,049 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:14,049 INFO L410 AbstractCegarLoop]: === Iteration 25 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:40:14,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:40:14,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1543795248, now seen corresponding path program 1 times [2019-10-07 14:40:14,053 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:40:14,053 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:40:14,053 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:40:14,053 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:40:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:40:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:40:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2019-10-07 14:40:14,373 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:40:14,373 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:40:14,373 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 14:40:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:40:15,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 4407 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 14:40:15,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:40:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 90 proven. 237 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2019-10-07 14:40:15,781 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:40:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2019-10-07 14:40:16,879 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:40:16,912 INFO L162 IcfgInterpreter]: Started Sifa with 198 locations of interest [2019-10-07 14:40:16,912 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:40:16,917 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:40:16,922 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:40:16,923 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:40:49,665 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:40:54,191 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:40:54,484 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:40:54,842 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:40:55,059 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:40:55,578 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:56,049 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:56,494 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:57,005 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:57,947 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:40:58,402 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:58,904 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:59,355 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:40:59,805 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:41:00,297 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:41:00,310 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:41:00,504 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:41:00,609 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:41:00,953 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:41:00,954 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1082 for LOIs [2019-10-07 14:41:01,381 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:01,809 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:01,940 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:02,673 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:03,123 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:03,560 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:03,719 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:04,465 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:04,948 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:05,382 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:05,647 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:06,428 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:07,222 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1082 [2019-10-07 14:41:07,667 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:07,799 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:08,550 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:08,993 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:09,419 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:09,549 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:10,293 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:10,725 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:11,162 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:11,281 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:12,014 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:12,447 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:12,872 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:12,990 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:13,733 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:14,160 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:14,588 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:14,718 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:15,465 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:15,889 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:16,325 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:16,452 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:17,190 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:17,623 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:18,051 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:18,168 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:18,916 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:19,343 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:19,773 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:19,902 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:20,652 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:21,079 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:21,515 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:21,632 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:22,368 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:22,803 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:23,234 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:41:23,351 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:24,104 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:25,559 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:26,320 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:26,447 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:27,191 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:28,531 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:41:29,266 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:29,394 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:30,135 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:30,872 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:31,609 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:31,727 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:32,473 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:33,469 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:34,227 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:34,350 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:35,088 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:36,362 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:41:37,099 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:41:37,232 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:37,983 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:39,239 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:41:39,980 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:41:40,099 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:40,849 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:41,591 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:41:42,337 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:41:42,460 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:43,198 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:44,035 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:44,788 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:44,937 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:45,676 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:41:46,453 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:47,192 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:47,321 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:48,068 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:41:49,334 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:41:50,071 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:50,197 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:50,938 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:41:51,695 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:52,437 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:41:52,555 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:41:53,307 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:41:54,676 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:41:55,411 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:55,569 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:56,311 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:57,654 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:41:58,387 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:58,511 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:41:59,241 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:41:59,989 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:00,723 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:00,841 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:01,587 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:02,354 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:03,105 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:03,230 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:03,971 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:04,740 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:05,485 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:05,611 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:06,357 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:07,108 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:07,849 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:07,967 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:08,718 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:09,973 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:42:10,717 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:42:10,843 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:11,600 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:12,866 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:42:13,613 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:13,739 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:14,501 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:42:15,871 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:16,615 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:16,739 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:17,493 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:18,845 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:19,592 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:19,716 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:20,471 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:21,216 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:21,977 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:22,095 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:22,838 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:24,213 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:24,977 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:25,102 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:25,853 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:27,225 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:27,989 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:28,115 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:28,861 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:29,621 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:30,371 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:30,490 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:31,247 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:32,644 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:42:33,404 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:33,530 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:34,292 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:35,674 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:42:36,430 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:36,558 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:37,329 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:38,707 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:39,463 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:39,589 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:40,341 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:41,718 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:42,478 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:42,601 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:43,359 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:44,114 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:44,878 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:44,996 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:42:45,745 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:47,057 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:42:47,839 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:42:47,964 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:48,724 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:50,020 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:42:50,772 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:42:50,914 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:51,674 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:52,427 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:42:53,191 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:42:53,312 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:54,067 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:55,476 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:42:56,240 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:56,382 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:42:57,139 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:42:58,534 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:42:59,297 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:42:59,421 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:00,172 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:01,760 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:43:02,526 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:02,651 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:03,405 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:04,169 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:04,925 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:05,045 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:05,801 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:07,131 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:43:07,916 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:43:08,048 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:08,804 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:10,085 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:43:10,850 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:43:10,975 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:11,735 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:12,501 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:43:13,258 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:43:13,380 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:14,135 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:15,440 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:43:16,204 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:16,329 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:17,078 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:18,572 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:43:19,344 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:19,470 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:20,235 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:21,631 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:43:22,393 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:22,659 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:23,487 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:24,875 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:43:25,636 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:25,761 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:26,530 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:27,912 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:43:28,660 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:28,784 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:29,541 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:30,894 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:43:31,652 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:31,781 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:32,532 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:33,294 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:34,050 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:34,168 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:34,926 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:36,326 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:43:37,087 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:37,213 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:37,966 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:38,742 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:39,496 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:39,626 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:40,380 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:41,760 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:43:42,519 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:42,639 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:43,412 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:44,713 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:43:45,483 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:43:45,608 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:46,363 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:47,657 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:43:48,420 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:43:48,545 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:43:49,310 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:43:50,690 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:43:51,440 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:51,563 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:52,323 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:53,681 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:43:54,442 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:54,569 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:55,321 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:55,328 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1110 for LOIs [2019-10-07 14:43:55,817 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:43:56,315 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:43:56,444 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:57,197 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:43:57,733 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:43:58,232 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:43:58,352 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:43:59,113 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:44:00,025 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1120 [2019-10-07 14:44:00,525 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:00,647 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:44:01,411 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:44:01,925 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:02,420 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:02,538 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:44:03,313 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:44:03,815 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:04,315 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:04,437 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:44:05,197 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:44:05,696 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:06,197 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:44:06,315 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:44:07,080 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:44:07,349 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:44:07,350 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:44:07,357 INFO L168 Benchmark]: Toolchain (without parser) took 522638.45 ms. Allocated memory was 144.2 MB in the beginning and 4.6 GB in the end (delta: 4.5 GB). Free memory was 98.9 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,357 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1101.10 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 98.6 MB in the beginning and 142.0 MB in the end (delta: -43.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,358 INFO L168 Benchmark]: Boogie Preprocessor took 199.95 ms. Allocated memory is still 200.8 MB. Free memory was 142.0 MB in the beginning and 132.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,358 INFO L168 Benchmark]: RCFGBuilder took 4801.95 ms. Allocated memory was 200.8 MB in the beginning and 310.9 MB in the end (delta: 110.1 MB). Free memory was 131.9 MB in the beginning and 250.2 MB in the end (delta: -118.3 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,359 INFO L168 Benchmark]: TraceAbstraction took 516530.48 ms. Allocated memory was 310.9 MB in the beginning and 4.6 GB in the end (delta: 4.3 GB). Free memory was 250.2 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:44:07,371 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1101.10 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 98.6 MB in the beginning and 142.0 MB in the end (delta: -43.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 199.95 ms. Allocated memory is still 200.8 MB. Free memory was 142.0 MB in the beginning and 132.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4801.95 ms. Allocated memory was 200.8 MB in the beginning and 310.9 MB in the end (delta: 110.1 MB). Free memory was 131.9 MB in the beginning and 250.2 MB in the end (delta: -118.3 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 516530.48 ms. Allocated memory was 310.9 MB in the beginning and 4.6 GB in the end (delta: 4.3 GB). Free memory was 250.2 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...