java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:07:01,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:01,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:01,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:01,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:01,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:01,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:01,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:01,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:01,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:01,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:01,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:01,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:01,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:01,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:01,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:01,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:01,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:01,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:01,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:01,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:01,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:01,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:01,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:01,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:01,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:01,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:01,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:01,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:01,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:01,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:01,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:01,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:01,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:01,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:01,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:01,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:01,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:01,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:01,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:01,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:01,586 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 03:07:01,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:01,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:01,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:01,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:01,623 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:01,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:01,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:01,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:01,625 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:01,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:01,627 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:01,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:01,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:01,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:01,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:01,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:01,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:01,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:01,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:01,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:01,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:01,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:01,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:01,630 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 03:07:01,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:01,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:01,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:01,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:01,982 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:01,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-10-15 03:07:02,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee328f495/d45248630f3247219e5c75e5c3c21121/FLAG2f14f4c64 [2019-10-15 03:07:02,797 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:02,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-10-15 03:07:02,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee328f495/d45248630f3247219e5c75e5c3c21121/FLAG2f14f4c64 [2019-10-15 03:07:02,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee328f495/d45248630f3247219e5c75e5c3c21121 [2019-10-15 03:07:02,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:02,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:02,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:02,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:02,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:02,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:02" (1/1) ... [2019-10-15 03:07:02,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a756964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:02, skipping insertion in model container [2019-10-15 03:07:02,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:02" (1/1) ... [2019-10-15 03:07:02,946 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:03,039 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:03,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:03,828 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:03,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:04,046 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04 WrapperNode [2019-10-15 03:07:04,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:04,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:04,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:04,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:04,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (1/1) ... [2019-10-15 03:07:04,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:04,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:04,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:04,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:04,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (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 03:07:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:04,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:07:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:07:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:07:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:07:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:10,520 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:10,520 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:10,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:10 BoogieIcfgContainer [2019-10-15 03:07:10,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:10,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:10,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:10,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:10,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:02" (1/3) ... [2019-10-15 03:07:10,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6311d4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:10, skipping insertion in model container [2019-10-15 03:07:10,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:04" (2/3) ... [2019-10-15 03:07:10,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6311d4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:10, skipping insertion in model container [2019-10-15 03:07:10,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:10" (3/3) ... [2019-10-15 03:07:10,530 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product11.cil.c [2019-10-15 03:07:10,540 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:10,551 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:10,570 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:10,602 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:10,603 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:10,603 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:10,603 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:10,603 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:10,603 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:10,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:10,603 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-10-15 03:07:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:07:10,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:10,661 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:07:10,663 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:10,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:10,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1182461957, now seen corresponding path program 1 times [2019-10-15 03:07:10,679 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:10,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282587276] [2019-10-15 03:07:10,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:10,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:10,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:11,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282587276] [2019-10-15 03:07:11,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:11,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:07:11,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266420317] [2019-10-15 03:07:11,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:07:11,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:07:11,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:11,371 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 2 states. [2019-10-15 03:07:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:11,445 INFO L93 Difference]: Finished difference Result 474 states and 706 transitions. [2019-10-15 03:07:11,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:07:11,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-15 03:07:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:11,472 INFO L225 Difference]: With dead ends: 474 [2019-10-15 03:07:11,473 INFO L226 Difference]: Without dead ends: 440 [2019-10-15 03:07:11,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-15 03:07:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2019-10-15 03:07:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-10-15 03:07:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 655 transitions. [2019-10-15 03:07:11,579 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 655 transitions. Word has length 135 [2019-10-15 03:07:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:11,582 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 655 transitions. [2019-10-15 03:07:11,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:07:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 655 transitions. [2019-10-15 03:07:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:07:11,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:11,590 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:07:11,590 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:11,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1045736166, now seen corresponding path program 1 times [2019-10-15 03:07:11,658 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:11,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210441339] [2019-10-15 03:07:11,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:11,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:11,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:12,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210441339] [2019-10-15 03:07:12,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:12,174 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:07:12,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546666540] [2019-10-15 03:07:12,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:12,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:12,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:12,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:07:12,182 INFO L87 Difference]: Start difference. First operand 440 states and 655 transitions. Second operand 7 states. [2019-10-15 03:07:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:17,918 INFO L93 Difference]: Finished difference Result 1225 states and 1876 transitions. [2019-10-15 03:07:17,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:07:17,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-15 03:07:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:17,932 INFO L225 Difference]: With dead ends: 1225 [2019-10-15 03:07:17,932 INFO L226 Difference]: Without dead ends: 838 [2019-10-15 03:07:17,939 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:07:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-10-15 03:07:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 813. [2019-10-15 03:07:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-10-15 03:07:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1240 transitions. [2019-10-15 03:07:18,035 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1240 transitions. Word has length 136 [2019-10-15 03:07:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:18,036 INFO L462 AbstractCegarLoop]: Abstraction has 813 states and 1240 transitions. [2019-10-15 03:07:18,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1240 transitions. [2019-10-15 03:07:18,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 03:07:18,041 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:18,041 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:07:18,042 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:18,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:18,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1456942530, now seen corresponding path program 1 times [2019-10-15 03:07:18,043 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:18,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482854408] [2019-10-15 03:07:18,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:18,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:18,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:18,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482854408] [2019-10-15 03:07:18,386 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:18,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:07:18,386 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861413081] [2019-10-15 03:07:18,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:07:18,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:18,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:07:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:07:18,388 INFO L87 Difference]: Start difference. First operand 813 states and 1240 transitions. Second operand 6 states. [2019-10-15 03:07:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:19,244 INFO L93 Difference]: Finished difference Result 852 states and 1296 transitions. [2019-10-15 03:07:19,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:07:19,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-15 03:07:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:19,255 INFO L225 Difference]: With dead ends: 852 [2019-10-15 03:07:19,255 INFO L226 Difference]: Without dead ends: 835 [2019-10-15 03:07:19,257 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-15 03:07:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 817. [2019-10-15 03:07:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-15 03:07:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1244 transitions. [2019-10-15 03:07:19,321 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1244 transitions. Word has length 140 [2019-10-15 03:07:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:19,322 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1244 transitions. [2019-10-15 03:07:19,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:07:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1244 transitions. [2019-10-15 03:07:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:07:19,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:19,327 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:07:19,327 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:19,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1766301213, now seen corresponding path program 1 times [2019-10-15 03:07:19,328 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:19,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713299581] [2019-10-15 03:07:19,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:19,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713299581] [2019-10-15 03:07:19,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:19,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:07:19,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932870543] [2019-10-15 03:07:19,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:07:19,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:19,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:07:19,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:19,665 INFO L87 Difference]: Start difference. First operand 817 states and 1244 transitions. Second operand 8 states. [2019-10-15 03:07:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:19,775 INFO L93 Difference]: Finished difference Result 838 states and 1270 transitions. [2019-10-15 03:07:19,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:07:19,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-15 03:07:19,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:19,784 INFO L225 Difference]: With dead ends: 838 [2019-10-15 03:07:19,784 INFO L226 Difference]: Without dead ends: 821 [2019-10-15 03:07:19,785 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:07:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-10-15 03:07:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 817. [2019-10-15 03:07:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-15 03:07:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1242 transitions. [2019-10-15 03:07:19,849 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1242 transitions. Word has length 145 [2019-10-15 03:07:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:19,854 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1242 transitions. [2019-10-15 03:07:19,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:07:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1242 transitions. [2019-10-15 03:07:19,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:07:19,859 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:19,859 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:19,859 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:19,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:19,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1194523864, now seen corresponding path program 1 times [2019-10-15 03:07:19,860 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:19,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963275021] [2019-10-15 03:07:19,861 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:07:21,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963275021] [2019-10-15 03:07:21,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488800244] [2019-10-15 03:07:21,574 INFO L94 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 [2019-10-15 03:07:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:22,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 03:07:22,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:22,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:22,766 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:23,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:23,661 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:07:23,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-10-15 03:07:23,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131568400] [2019-10-15 03:07:23,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:23,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:23,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:23,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1223, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 03:07:23,667 INFO L87 Difference]: Start difference. First operand 817 states and 1242 transitions. Second operand 7 states. [2019-10-15 03:07:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:23,822 INFO L93 Difference]: Finished difference Result 860 states and 1296 transitions. [2019-10-15 03:07:23,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:07:23,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-10-15 03:07:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:23,844 INFO L225 Difference]: With dead ends: 860 [2019-10-15 03:07:23,844 INFO L226 Difference]: Without dead ends: 843 [2019-10-15 03:07:23,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 03:07:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-15 03:07:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 829. [2019-10-15 03:07:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2019-10-15 03:07:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1254 transitions. [2019-10-15 03:07:23,936 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1254 transitions. Word has length 160 [2019-10-15 03:07:23,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:23,938 INFO L462 AbstractCegarLoop]: Abstraction has 829 states and 1254 transitions. [2019-10-15 03:07:23,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1254 transitions. [2019-10-15 03:07:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 03:07:23,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:23,950 INFO L380 BasicCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:24,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:07:24,163 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash 982452877, now seen corresponding path program 1 times [2019-10-15 03:07:24,163 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:24,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088842116] [2019-10-15 03:07:24,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:24,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:24,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:07:24,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088842116] [2019-10-15 03:07:24,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141506627] [2019-10-15 03:07:24,976 INFO L94 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 [2019-10-15 03:07:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:25,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 3330 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-15 03:07:25,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 03:07:26,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:27,105 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:27,553 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:27,778 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-10-15 03:07:28,162 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-10-15 03:07:28,284 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-10-15 03:07:28,761 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:29,189 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-15 03:07:29,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:30,168 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:30,279 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-10-15 03:07:31,107 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:31,404 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:31,835 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-15 03:07:32,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,002 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,004 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,007 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,510 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:32,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:33,158 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:33,464 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:34,032 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:34,148 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:34,359 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:34,568 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:34,674 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:35,010 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:35,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,306 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:36,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,741 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,754 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,398 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:37,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:37,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:37,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,228 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:38,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:38,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:07:38,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1869292263] [2019-10-15 03:07:38,713 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-15 03:07:38,713 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:07:38,721 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:07:38,731 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:07:38,731 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs