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_spec2_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:08:38,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:08:38,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:08:38,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:08:38,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:08:38,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:08:38,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:08:38,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:08:38,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:08:38,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:08:38,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:08:38,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:08:38,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:08:38,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:08:38,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:08:38,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:08:38,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:08:38,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:08:38,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:08:38,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:08:38,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:08:38,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:08:38,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:08:38,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:08:38,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:08:38,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:08:38,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:08:38,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:08:38,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:08:38,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:08:38,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:08:38,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:08:38,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:08:38,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:08:38,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:08:38,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:08:38,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:08:38,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:08:38,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:08:38,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:08:38,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:08:38,533 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 [2019-10-15 03:08:38,557 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:08:38,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:08:38,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:08:38,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:08:38,559 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:08:38,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:08:38,560 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:08:38,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:08:38,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:08:38,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:08:38,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:08:38,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:08:38,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:08:38,564 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:08:38,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:08:38,564 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:08:38,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:08:38,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:08:38,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:08:38,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:08:38,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:08:38,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:08:38,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:08:38,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:08:38,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:08:38,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:08:38,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:08:38,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:08:38,567 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 [2019-10-15 03:08:38,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:08:38,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:08:38,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:08:38,910 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:08:38,911 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:08:38,912 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c [2019-10-15 03:08:39,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9892bbd12/d5810f5bca9948c08546e6ab3b886bf4/FLAG8f2e3956d [2019-10-15 03:08:39,764 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:08:39,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c [2019-10-15 03:08:39,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9892bbd12/d5810f5bca9948c08546e6ab3b886bf4/FLAG8f2e3956d [2019-10-15 03:08:39,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9892bbd12/d5810f5bca9948c08546e6ab3b886bf4 [2019-10-15 03:08:39,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:08:39,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:08:39,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:08:39,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:08:39,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:08:39,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:08:39" (1/1) ... [2019-10-15 03:08:39,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfc0887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:39, skipping insertion in model container [2019-10-15 03:08:39,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:08:39" (1/1) ... [2019-10-15 03:08:39,928 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:08:40,028 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:08:40,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:08:40,849 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:08:40,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:08:41,115 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:08:41,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41 WrapperNode [2019-10-15 03:08:41,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:08:41,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:08:41,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:08:41,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:08:41,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (1/1) ... [2019-10-15 03:08:41,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:08:41,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:08:41,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:08:41,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:08:41,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (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 [2019-10-15 03:08:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:08:41,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:08:41,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:08:41,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:08:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:08:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:08:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:08:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:08:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:08:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:08:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:08:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:08:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:08:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:08:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:08:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:08:41,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:08:41,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:08:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:08:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:08:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:08:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:08:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:08:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:08:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:08:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:08:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:08:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:08:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:08:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:08:41,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:08:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:08:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:08:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:08:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:08:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:08:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:08:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:08:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:08:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:08:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:08:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:08:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:08:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:08:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__before__overloaded [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__role__overloaded [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2019-10-15 03:08:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__role__weight [2019-10-15 03:08:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:08:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2019-10-15 03:08:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__weight [2019-10-15 03:08:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2019-10-15 03:08:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__empty [2019-10-15 03:08:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:08:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:08:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:08:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:08:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:08:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:08:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:08:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:08:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:08:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:08:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-15 03:08:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-15 03:08:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2019-10-15 03:08:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__executivefloor [2019-10-15 03:08:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:08:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:08:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:08:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-15 03:08:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-15 03:08:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-15 03:08:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-15 03:08:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:08:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:08:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:08:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2019-10-15 03:08:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__role__overloaded [2019-10-15 03:08:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__before__overloaded [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__role__overloaded [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:08:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:08:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:08:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:08:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:08:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:08:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:08:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:08:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:08:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:08:41,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:08:41,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:08:41,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:08:41,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:08:41,495 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:08:41,495 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:08:41,495 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:08:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:08:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:08:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:08:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:08:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:08:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:08:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:08:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:08:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:08:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:08:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:08:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:08:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:08:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:08:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:08:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:08:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:08:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:08:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:08:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:08:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:08:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:08:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:08:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:08:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:08:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:08:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:08:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:08:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:08:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:08:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__before__overloaded [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__role__overloaded [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2019-10-15 03:08:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__role__weight [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__weight [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__empty [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:08:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2019-10-15 03:08:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__executivefloor [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-15 03:08:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-15 03:08:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:08:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:08:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:08:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2019-10-15 03:08:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__role__overloaded [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure printState__before__overloaded [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure printState__role__overloaded [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:08:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:08:47,769 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:08:47,769 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:08:47,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:08:47 BoogieIcfgContainer [2019-10-15 03:08:47,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:08:47,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:08:47,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:08:47,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:08:47,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:08:39" (1/3) ... [2019-10-15 03:08:47,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b19ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:08:47, skipping insertion in model container [2019-10-15 03:08:47,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:41" (2/3) ... [2019-10-15 03:08:47,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b19ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:08:47, skipping insertion in model container [2019-10-15 03:08:47,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:08:47" (3/3) ... [2019-10-15 03:08:47,780 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_productSimulator.cil.c [2019-10-15 03:08:47,791 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:08:47,803 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:08:47,816 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:08:47,866 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:08:47,866 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:08:47,866 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:08:47,866 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:08:47,866 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:08:47,866 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:08:47,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:08:47,867 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:08:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states. [2019-10-15 03:08:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 03:08:47,939 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:47,941 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:47,945 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:47,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:47,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1787488430, now seen corresponding path program 1 times [2019-10-15 03:08:47,966 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:47,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157893695] [2019-10-15 03:08:47,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:47,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:47,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:48,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:08:48,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157893695] [2019-10-15 03:08:48,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:48,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:08:48,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351663740] [2019-10-15 03:08:48,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:08:48,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:48,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:08:48,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:08:48,727 INFO L87 Difference]: Start difference. First operand 705 states. Second operand 6 states. [2019-10-15 03:08:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:49,076 INFO L93 Difference]: Finished difference Result 1115 states and 1628 transitions. [2019-10-15 03:08:49,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:08:49,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2019-10-15 03:08:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:49,119 INFO L225 Difference]: With dead ends: 1115 [2019-10-15 03:08:49,120 INFO L226 Difference]: Without dead ends: 563 [2019-10-15 03:08:49,135 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-15 03:08:49,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2019-10-15 03:08:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-10-15 03:08:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 812 transitions. [2019-10-15 03:08:49,331 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 812 transitions. Word has length 101 [2019-10-15 03:08:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:49,334 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 812 transitions. [2019-10-15 03:08:49,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:08:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 812 transitions. [2019-10-15 03:08:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-15 03:08:49,353 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:49,353 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:49,354 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:49,356 INFO L82 PathProgramCache]: Analyzing trace with hash 72093283, now seen corresponding path program 1 times [2019-10-15 03:08:49,357 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:49,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741927792] [2019-10-15 03:08:49,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:49,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:49,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:08:49,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741927792] [2019-10-15 03:08:49,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:49,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:49,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781888146] [2019-10-15 03:08:49,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:49,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:49,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:49,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:49,802 INFO L87 Difference]: Start difference. First operand 563 states and 812 transitions. Second operand 4 states. [2019-10-15 03:08:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:51,741 INFO L93 Difference]: Finished difference Result 1581 states and 2316 transitions. [2019-10-15 03:08:51,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:08:51,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-10-15 03:08:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:51,771 INFO L225 Difference]: With dead ends: 1581 [2019-10-15 03:08:51,771 INFO L226 Difference]: Without dead ends: 1078 [2019-10-15 03:08:51,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2019-10-15 03:08:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1065. [2019-10-15 03:08:51,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-10-15 03:08:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1543 transitions. [2019-10-15 03:08:51,864 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1543 transitions. Word has length 103 [2019-10-15 03:08:51,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:51,865 INFO L462 AbstractCegarLoop]: Abstraction has 1065 states and 1543 transitions. [2019-10-15 03:08:51,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:08:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1543 transitions. [2019-10-15 03:08:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-15 03:08:51,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:51,868 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:51,869 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:51,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1256887126, now seen corresponding path program 1 times [2019-10-15 03:08:51,869 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:51,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180573208] [2019-10-15 03:08:51,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:51,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:51,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:08:52,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180573208] [2019-10-15 03:08:52,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:52,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:08:52,193 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748247737] [2019-10-15 03:08:52,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:08:52,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:52,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:08:52,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:08:52,195 INFO L87 Difference]: Start difference. First operand 1065 states and 1543 transitions. Second operand 9 states. [2019-10-15 03:09:02,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:02,762 INFO L93 Difference]: Finished difference Result 2947 states and 4351 transitions. [2019-10-15 03:09:02,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 03:09:02,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 104 [2019-10-15 03:09:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:02,784 INFO L225 Difference]: With dead ends: 2947 [2019-10-15 03:09:02,784 INFO L226 Difference]: Without dead ends: 1975 [2019-10-15 03:09:02,796 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:09:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-15 03:09:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1926. [2019-10-15 03:09:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2019-10-15 03:09:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2746 transitions. [2019-10-15 03:09:03,006 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2746 transitions. Word has length 104 [2019-10-15 03:09:03,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:03,008 INFO L462 AbstractCegarLoop]: Abstraction has 1926 states and 2746 transitions. [2019-10-15 03:09:03,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:09:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2746 transitions. [2019-10-15 03:09:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 03:09:03,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:03,025 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:03,026 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:03,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:03,028 INFO L82 PathProgramCache]: Analyzing trace with hash -263383926, now seen corresponding path program 1 times [2019-10-15 03:09:03,028 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:03,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926610786] [2019-10-15 03:09:03,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:03,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:03,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:09:03,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926610786] [2019-10-15 03:09:03,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:03,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:09:03,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544631395] [2019-10-15 03:09:03,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:09:03,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:03,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:09:03,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:09:03,462 INFO L87 Difference]: Start difference. First operand 1926 states and 2746 transitions. Second operand 5 states. [2019-10-15 03:09:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:07,391 INFO L93 Difference]: Finished difference Result 5719 states and 8325 transitions. [2019-10-15 03:09:07,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:09:07,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2019-10-15 03:09:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:07,434 INFO L225 Difference]: With dead ends: 5719 [2019-10-15 03:09:07,434 INFO L226 Difference]: Without dead ends: 3888 [2019-10-15 03:09:07,444 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:09:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2019-10-15 03:09:07,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3698. [2019-10-15 03:09:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3698 states. [2019-10-15 03:09:07,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5353 transitions. [2019-10-15 03:09:07,697 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 5353 transitions. Word has length 105 [2019-10-15 03:09:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:07,699 INFO L462 AbstractCegarLoop]: Abstraction has 3698 states and 5353 transitions. [2019-10-15 03:09:07,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:09:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 5353 transitions. [2019-10-15 03:09:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-15 03:09:07,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:07,705 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:07,705 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:07,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:07,706 INFO L82 PathProgramCache]: Analyzing trace with hash 423304977, now seen corresponding path program 1 times [2019-10-15 03:09:07,706 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:07,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672347359] [2019-10-15 03:09:07,707 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:07,707 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:07,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:09:07,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672347359] [2019-10-15 03:09:07,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:07,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:09:07,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801973394] [2019-10-15 03:09:07,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:09:07,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:07,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:09:07,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:09:07,895 INFO L87 Difference]: Start difference. First operand 3698 states and 5353 transitions. Second operand 4 states. [2019-10-15 03:09:10,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:10,872 INFO L93 Difference]: Finished difference Result 10893 states and 15970 transitions. [2019-10-15 03:09:10,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:09:10,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2019-10-15 03:09:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:10,952 INFO L225 Difference]: With dead ends: 10893 [2019-10-15 03:09:10,953 INFO L226 Difference]: Without dead ends: 7292 [2019-10-15 03:09:10,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:09:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7292 states. [2019-10-15 03:09:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7292 to 7061. [2019-10-15 03:09:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7061 states. [2019-10-15 03:09:11,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 10296 transitions. [2019-10-15 03:09:11,503 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 10296 transitions. Word has length 106 [2019-10-15 03:09:11,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:11,504 INFO L462 AbstractCegarLoop]: Abstraction has 7061 states and 10296 transitions. [2019-10-15 03:09:11,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:09:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 10296 transitions. [2019-10-15 03:09:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-15 03:09:11,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:11,508 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:11,509 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:11,509 INFO L82 PathProgramCache]: Analyzing trace with hash 235828396, now seen corresponding path program 1 times [2019-10-15 03:09:11,509 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:11,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119611724] [2019-10-15 03:09:11,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:11,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:11,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:09:11,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119611724] [2019-10-15 03:09:11,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:11,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:09:11,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379974646] [2019-10-15 03:09:11,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:09:11,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:11,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:09:11,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:09:11,691 INFO L87 Difference]: Start difference. First operand 7061 states and 10296 transitions. Second operand 4 states. [2019-10-15 03:09:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:14,923 INFO L93 Difference]: Finished difference Result 21070 states and 31128 transitions. [2019-10-15 03:09:14,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:09:14,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2019-10-15 03:09:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:15,088 INFO L225 Difference]: With dead ends: 21070 [2019-10-15 03:09:15,088 INFO L226 Difference]: Without dead ends: 14108 [2019-10-15 03:09:15,145 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:09:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14108 states. [2019-10-15 03:09:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14108 to 13788. [2019-10-15 03:09:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13788 states. [2019-10-15 03:09:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13788 states to 13788 states and 20256 transitions. [2019-10-15 03:09:16,381 INFO L78 Accepts]: Start accepts. Automaton has 13788 states and 20256 transitions. Word has length 107 [2019-10-15 03:09:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:16,383 INFO L462 AbstractCegarLoop]: Abstraction has 13788 states and 20256 transitions. [2019-10-15 03:09:16,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:09:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 13788 states and 20256 transitions. [2019-10-15 03:09:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 03:09:16,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:16,387 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:16,387 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:16,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1280974413, now seen corresponding path program 1 times [2019-10-15 03:09:16,388 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:16,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322916707] [2019-10-15 03:09:16,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:16,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:16,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:09:16,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322916707] [2019-10-15 03:09:16,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:16,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:09:16,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701106207] [2019-10-15 03:09:16,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:09:16,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:16,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:09:16,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:09:16,585 INFO L87 Difference]: Start difference. First operand 13788 states and 20256 transitions. Second operand 4 states.