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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:19:25,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:19:25,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:19:25,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:19:25,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:19:25,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:19:25,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:19:25,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:19:25,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:19:25,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:19:25,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:19:25,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:19:25,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:19:25,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:19:25,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:19:25,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:19:25,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:19:25,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:19:25,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:19:25,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:19:25,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:19:25,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:19:25,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:19:25,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:19:25,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:19:25,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:19:25,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:19:25,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:19:25,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:19:25,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:19:25,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:19:25,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:19:25,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:19:25,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:19:25,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:19:25,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:19:25,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:19:25,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:19:25,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:19:25,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:19:25,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:19:25,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:19:25,566 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:19:25,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:19:25,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:19:25,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:19:25,569 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:19:25,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:19:25,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:19:25,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:19:25,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:19:25,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:19:25,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:19:25,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:19:25,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:19:25,572 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:19:25,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:19:25,573 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:19:25,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:19:25,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:19:25,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:19:25,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:19:25,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:19:25,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:19:25,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:19:25,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:19:25,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:19:25,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:19:25,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:19:25,921 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:19:25,921 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:19:25,922 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2019-10-07 14:19:25,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d733a200/1deacf42441c4165aa0366035ddf6af7/FLAG427f63939 [2019-10-07 14:19:26,612 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:19:26,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2019-10-07 14:19:26,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d733a200/1deacf42441c4165aa0366035ddf6af7/FLAG427f63939 [2019-10-07 14:19:26,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d733a200/1deacf42441c4165aa0366035ddf6af7 [2019-10-07 14:19:26,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:19:26,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:19:26,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:19:26,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:19:26,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:19:26,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:19:26" (1/1) ... [2019-10-07 14:19:26,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b14516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:26, skipping insertion in model container [2019-10-07 14:19:26,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:19:26" (1/1) ... [2019-10-07 14:19:26,914 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:19:26,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:19:27,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:19:27,712 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:19:27,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:19:28,000 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:19:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28 WrapperNode [2019-10-07 14:19:28,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:19:28,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:19:28,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:19:28,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:19:28,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... [2019-10-07 14:19:28,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:19:28,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:19:28,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:19:28,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:19:28,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:19:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:19:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:19:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:19:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:19:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:19:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:19:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:19:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:19:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:19:28,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:19:28,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:19:28,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:19:28,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:19:28,333 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:19:28,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:19:28,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:19:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:19:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:19:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:19:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:19:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:19:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:19:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:19:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:19:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:19:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:19:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:19:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:19:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:19:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:19:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:19:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:19:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:19:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:19:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:19:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:19:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:19:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:19:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:19:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:19:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:19:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:19:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:19:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:19:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:19:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:19:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:19:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:19:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:19:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:19:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:19:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:19:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:19:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:19:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:19:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:19:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:19:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:19:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:19:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:19:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:19:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:19:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:19:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:19:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:19:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:19:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:19:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:19:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:19:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:19:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:19:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:19:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:19:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:19:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:19:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:19:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:19:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:19:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:19:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:19:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:19:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:19:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:19:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:19:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:19:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:19:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:19:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:19:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:19:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:19:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:19:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:19:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:19:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:19:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:19:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:19:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:19:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:19:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:19:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:19:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:19:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:19:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:19:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:19:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:19:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:19:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:19:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:19:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:19:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:19:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:19:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:19:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:19:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:19:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:19:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:19:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:19:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:19:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:19:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:19:33,203 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:19:33,204 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:19:33,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:19:33 BoogieIcfgContainer [2019-10-07 14:19:33,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:19:33,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:19:33,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:19:33,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:19:33,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:19:26" (1/3) ... [2019-10-07 14:19:33,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdd2a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:19:33, skipping insertion in model container [2019-10-07 14:19:33,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:19:28" (2/3) ... [2019-10-07 14:19:33,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdd2a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:19:33, skipping insertion in model container [2019-10-07 14:19:33,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:19:33" (3/3) ... [2019-10-07 14:19:33,213 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product27.cil.c [2019-10-07 14:19:33,223 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:19:33,233 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:19:33,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:19:33,272 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:19:33,272 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:19:33,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:19:33,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:19:33,273 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:19:33,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:19:33,273 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:19:33,273 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:19:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states. [2019-10-07 14:19:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:19:33,325 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:33,327 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:33,329 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:33,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1500681736, now seen corresponding path program 1 times [2019-10-07 14:19:33,345 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:33,345 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:33,345 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:33,345 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:34,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:34,029 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:34,029 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:19:34,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:19:34,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:19:34,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:19:34,051 INFO L87 Difference]: Start difference. First operand 576 states. Second operand 2 states. [2019-10-07 14:19:34,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:34,125 INFO L93 Difference]: Finished difference Result 479 states and 710 transitions. [2019-10-07 14:19:34,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:19:34,127 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:19:34,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:34,161 INFO L225 Difference]: With dead ends: 479 [2019-10-07 14:19:34,161 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 14:19:34,169 INFO L606 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 [2019-10-07 14:19:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 14:19:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-10-07 14:19:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-10-07 14:19:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 659 transitions. [2019-10-07 14:19:34,318 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 659 transitions. Word has length 112 [2019-10-07 14:19:34,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:34,322 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 659 transitions. [2019-10-07 14:19:34,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:19:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 659 transitions. [2019-10-07 14:19:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:19:34,334 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:34,335 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:34,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:34,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:34,335 INFO L82 PathProgramCache]: Analyzing trace with hash 757640429, now seen corresponding path program 1 times [2019-10-07 14:19:34,336 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:34,336 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:34,336 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:34,336 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:34,726 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:34,726 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:34,726 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:19:34,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:19:34,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:19:34,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:34,735 INFO L87 Difference]: Start difference. First operand 445 states and 659 transitions. Second operand 7 states. [2019-10-07 14:19:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:38,642 INFO L93 Difference]: Finished difference Result 1262 states and 1914 transitions. [2019-10-07 14:19:38,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:19:38,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:19:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:38,653 INFO L225 Difference]: With dead ends: 1262 [2019-10-07 14:19:38,653 INFO L226 Difference]: Without dead ends: 859 [2019-10-07 14:19:38,660 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:19:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2019-10-07 14:19:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 834. [2019-10-07 14:19:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2019-10-07 14:19:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1261 transitions. [2019-10-07 14:19:38,784 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1261 transitions. Word has length 113 [2019-10-07 14:19:38,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:38,785 INFO L462 AbstractCegarLoop]: Abstraction has 834 states and 1261 transitions. [2019-10-07 14:19:38,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:19:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1261 transitions. [2019-10-07 14:19:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:19:38,791 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:38,792 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:38,792 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:38,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:38,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1189512345, now seen corresponding path program 1 times [2019-10-07 14:19:38,793 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:38,793 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:38,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:38,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:39,053 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:39,053 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:39,054 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:39,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:39,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:39,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:39,055 INFO L87 Difference]: Start difference. First operand 834 states and 1261 transitions. Second operand 4 states. [2019-10-07 14:19:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:40,796 INFO L93 Difference]: Finished difference Result 2486 states and 3856 transitions. [2019-10-07 14:19:40,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:40,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:19:40,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:40,818 INFO L225 Difference]: With dead ends: 2486 [2019-10-07 14:19:40,819 INFO L226 Difference]: Without dead ends: 1694 [2019-10-07 14:19:40,823 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:40,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2019-10-07 14:19:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1596. [2019-10-07 14:19:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1596 states. [2019-10-07 14:19:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2461 transitions. [2019-10-07 14:19:40,980 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2461 transitions. Word has length 117 [2019-10-07 14:19:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:40,982 INFO L462 AbstractCegarLoop]: Abstraction has 1596 states and 2461 transitions. [2019-10-07 14:19:40,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2461 transitions. [2019-10-07 14:19:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:19:40,988 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:40,988 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:40,989 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:40,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1781138496, now seen corresponding path program 1 times [2019-10-07 14:19:40,989 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:40,989 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:40,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:40,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:41,170 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:41,171 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:41,171 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:41,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:41,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:41,173 INFO L87 Difference]: Start difference. First operand 1596 states and 2461 transitions. Second operand 4 states. [2019-10-07 14:19:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:43,136 INFO L93 Difference]: Finished difference Result 4719 states and 7438 transitions. [2019-10-07 14:19:43,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:43,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 14:19:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:43,165 INFO L225 Difference]: With dead ends: 4719 [2019-10-07 14:19:43,166 INFO L226 Difference]: Without dead ends: 3166 [2019-10-07 14:19:43,176 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2019-10-07 14:19:43,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3045. [2019-10-07 14:19:43,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2019-10-07 14:19:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4762 transitions. [2019-10-07 14:19:43,451 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4762 transitions. Word has length 118 [2019-10-07 14:19:43,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:43,454 INFO L462 AbstractCegarLoop]: Abstraction has 3045 states and 4762 transitions. [2019-10-07 14:19:43,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4762 transitions. [2019-10-07 14:19:43,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:19:43,462 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:43,463 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:43,463 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:43,464 INFO L82 PathProgramCache]: Analyzing trace with hash 617969851, now seen corresponding path program 1 times [2019-10-07 14:19:43,464 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:43,464 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:43,465 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:43,465 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:43,665 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:43,666 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:43,666 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:43,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:43,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:43,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:43,668 INFO L87 Difference]: Start difference. First operand 3045 states and 4762 transitions. Second operand 4 states. [2019-10-07 14:19:45,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:45,642 INFO L93 Difference]: Finished difference Result 9118 states and 14678 transitions. [2019-10-07 14:19:45,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:45,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:19:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:45,701 INFO L225 Difference]: With dead ends: 9118 [2019-10-07 14:19:45,701 INFO L226 Difference]: Without dead ends: 6118 [2019-10-07 14:19:45,719 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2019-10-07 14:19:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 5952. [2019-10-07 14:19:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5952 states. [2019-10-07 14:19:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5952 states to 5952 states and 9480 transitions. [2019-10-07 14:19:46,251 INFO L78 Accepts]: Start accepts. Automaton has 5952 states and 9480 transitions. Word has length 119 [2019-10-07 14:19:46,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:46,252 INFO L462 AbstractCegarLoop]: Abstraction has 5952 states and 9480 transitions. [2019-10-07 14:19:46,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5952 states and 9480 transitions. [2019-10-07 14:19:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:19:46,255 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:46,256 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:46,256 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:46,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1975888482, now seen corresponding path program 1 times [2019-10-07 14:19:46,257 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:46,257 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:46,257 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:46,257 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:46,418 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:46,419 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:46,419 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:46,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:46,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:46,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:46,420 INFO L87 Difference]: Start difference. First operand 5952 states and 9480 transitions. Second operand 4 states. [2019-10-07 14:19:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:48,689 INFO L93 Difference]: Finished difference Result 17941 states and 29889 transitions. [2019-10-07 14:19:48,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:48,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:19:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:48,820 INFO L225 Difference]: With dead ends: 17941 [2019-10-07 14:19:48,820 INFO L226 Difference]: Without dead ends: 12038 [2019-10-07 14:19:48,858 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:48,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12038 states. [2019-10-07 14:19:49,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12038 to 11783. [2019-10-07 14:19:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11783 states. [2019-10-07 14:19:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11783 states to 11783 states and 19326 transitions. [2019-10-07 14:19:49,789 INFO L78 Accepts]: Start accepts. Automaton has 11783 states and 19326 transitions. Word has length 120 [2019-10-07 14:19:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:49,791 INFO L462 AbstractCegarLoop]: Abstraction has 11783 states and 19326 transitions. [2019-10-07 14:19:49,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 11783 states and 19326 transitions. [2019-10-07 14:19:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:19:49,794 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:49,795 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:19:49,795 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1121696989, now seen corresponding path program 1 times [2019-10-07 14:19:49,796 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:49,796 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:49,796 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:49,796 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:19:50,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:50,000 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:50,001 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:50,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:50,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:50,003 INFO L87 Difference]: Start difference. First operand 11783 states and 19326 transitions. Second operand 4 states. [2019-10-07 14:19:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:53,227 INFO L93 Difference]: Finished difference Result 35664 states and 62953 transitions. [2019-10-07 14:19:53,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:53,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:19:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:53,394 INFO L225 Difference]: With dead ends: 35664 [2019-10-07 14:19:53,394 INFO L226 Difference]: Without dead ends: 23926 [2019-10-07 14:19:53,461 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23926 states. [2019-10-07 14:19:54,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23926 to 23344. [2019-10-07 14:19:54,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23344 states. [2019-10-07 14:19:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23344 states to 23344 states and 39921 transitions. [2019-10-07 14:19:55,082 INFO L78 Accepts]: Start accepts. Automaton has 23344 states and 39921 transitions. Word has length 121 [2019-10-07 14:19:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:55,083 INFO L462 AbstractCegarLoop]: Abstraction has 23344 states and 39921 transitions. [2019-10-07 14:19:55,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:55,084 INFO L276 IsEmpty]: Start isEmpty. Operand 23344 states and 39921 transitions. [2019-10-07 14:19:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:19:55,091 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:55,091 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:19:55,092 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:55,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:55,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2095963819, now seen corresponding path program 1 times [2019-10-07 14:19:55,092 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:55,093 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:55,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:55,093 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:19:55,325 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:55,325 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:55,326 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:19:55,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:19:55,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:19:55,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:55,328 INFO L87 Difference]: Start difference. First operand 23344 states and 39921 transitions. Second operand 5 states. [2019-10-07 14:19:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:57,229 INFO L93 Difference]: Finished difference Result 47067 states and 83533 transitions. [2019-10-07 14:19:57,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:57,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2019-10-07 14:19:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:57,369 INFO L225 Difference]: With dead ends: 47067 [2019-10-07 14:19:57,369 INFO L226 Difference]: Without dead ends: 23766 [2019-10-07 14:19:57,430 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:57,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23766 states. [2019-10-07 14:19:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23766 to 23616. [2019-10-07 14:19:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23616 states. [2019-10-07 14:19:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23616 states to 23616 states and 40436 transitions. [2019-10-07 14:19:58,553 INFO L78 Accepts]: Start accepts. Automaton has 23616 states and 40436 transitions. Word has length 181 [2019-10-07 14:19:58,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:58,554 INFO L462 AbstractCegarLoop]: Abstraction has 23616 states and 40436 transitions. [2019-10-07 14:19:58,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:19:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 23616 states and 40436 transitions. [2019-10-07 14:19:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:19:58,562 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:58,562 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:19:58,562 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:58,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:58,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1756794900, now seen corresponding path program 1 times [2019-10-07 14:19:58,563 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:58,563 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:58,564 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:58,564 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:58,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:19:58,782 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:58,782 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:59,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:59,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:19:59,517 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:20:00,050 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:20:00,050 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:20:00,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:20:00,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:20:00,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:20:00,052 INFO L87 Difference]: Start difference. First operand 23616 states and 40436 transitions. Second operand 4 states. [2019-10-07 14:20:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:01,864 INFO L93 Difference]: Finished difference Result 49685 states and 88560 transitions. [2019-10-07 14:20:01,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:20:01,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2019-10-07 14:20:01,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:02,150 INFO L225 Difference]: With dead ends: 49685 [2019-10-07 14:20:02,150 INFO L226 Difference]: Without dead ends: 26112 [2019-10-07 14:20:02,331 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:20:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26112 states. [2019-10-07 14:20:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26112 to 26112. [2019-10-07 14:20:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26112 states. [2019-10-07 14:20:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26112 states to 26112 states and 45108 transitions. [2019-10-07 14:20:04,423 INFO L78 Accepts]: Start accepts. Automaton has 26112 states and 45108 transitions. Word has length 186 [2019-10-07 14:20:04,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:04,424 INFO L462 AbstractCegarLoop]: Abstraction has 26112 states and 45108 transitions. [2019-10-07 14:20:04,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:20:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 26112 states and 45108 transitions. [2019-10-07 14:20:04,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:20:04,434 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:04,434 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:04,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:04,649 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:04,649 INFO L82 PathProgramCache]: Analyzing trace with hash -2015284799, now seen corresponding path program 1 times [2019-10-07 14:20:04,649 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:04,650 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:04,650 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:04,650 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:20:04,847 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:04,847 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:05,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:20:05,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:20:05,542 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:20:06,073 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:20:06,073 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:20:06,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:20:06,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:20:06,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:20:06,076 INFO L87 Difference]: Start difference. First operand 26112 states and 45108 transitions. Second operand 4 states. [2019-10-07 14:20:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:08,641 INFO L93 Difference]: Finished difference Result 54677 states and 97838 transitions. [2019-10-07 14:20:08,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:20:08,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2019-10-07 14:20:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:08,835 INFO L225 Difference]: With dead ends: 54677 [2019-10-07 14:20:08,835 INFO L226 Difference]: Without dead ends: 28608 [2019-10-07 14:20:08,897 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:20:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28608 states. [2019-10-07 14:20:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28608 to 28608. [2019-10-07 14:20:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28608 states. [2019-10-07 14:20:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28608 states to 28608 states and 49780 transitions. [2019-10-07 14:20:10,441 INFO L78 Accepts]: Start accepts. Automaton has 28608 states and 49780 transitions. Word has length 191 [2019-10-07 14:20:10,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:10,445 INFO L462 AbstractCegarLoop]: Abstraction has 28608 states and 49780 transitions. [2019-10-07 14:20:10,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:20:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 28608 states and 49780 transitions. [2019-10-07 14:20:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:20:10,460 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:10,461 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:10,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:10,673 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:10,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:10,673 INFO L82 PathProgramCache]: Analyzing trace with hash 693419985, now seen corresponding path program 1 times [2019-10-07 14:20:10,673 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:10,673 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:10,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:10,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:20:11,160 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:11,161 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:11,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:20:11,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:20:11,988 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:20:12,467 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:20:12,467 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:20:12,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:20:12,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:20:12,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:20:12,469 INFO L87 Difference]: Start difference. First operand 28608 states and 49780 transitions. Second operand 4 states. [2019-10-07 14:20:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:13,589 INFO L93 Difference]: Finished difference Result 59669 states and 107116 transitions. [2019-10-07 14:20:13,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:20:13,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-07 14:20:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:13,773 INFO L225 Difference]: With dead ends: 59669 [2019-10-07 14:20:13,773 INFO L226 Difference]: Without dead ends: 31104 [2019-10-07 14:20:13,856 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:20:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31104 states. [2019-10-07 14:20:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31104 to 31104. [2019-10-07 14:20:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31104 states. [2019-10-07 14:20:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31104 states to 31104 states and 54452 transitions. [2019-10-07 14:20:16,706 INFO L78 Accepts]: Start accepts. Automaton has 31104 states and 54452 transitions. Word has length 195 [2019-10-07 14:20:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:16,707 INFO L462 AbstractCegarLoop]: Abstraction has 31104 states and 54452 transitions. [2019-10-07 14:20:16,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:20:16,707 INFO L276 IsEmpty]: Start isEmpty. Operand 31104 states and 54452 transitions. [2019-10-07 14:20:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:20:16,717 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:16,717 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:16,926 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:16,927 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:16,928 INFO L82 PathProgramCache]: Analyzing trace with hash -334035590, now seen corresponding path program 1 times [2019-10-07 14:20:16,928 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:16,929 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:16,929 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:16,929 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:20:17,141 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:17,142 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:17,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:17,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 3433 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:20:17,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:20:17,825 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:20:18,241 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:20:18,241 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:20:18,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:20:18,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:20:18,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:20:18,243 INFO L87 Difference]: Start difference. First operand 31104 states and 54452 transitions. Second operand 4 states. [2019-10-07 14:20:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:19,277 INFO L93 Difference]: Finished difference Result 64661 states and 116394 transitions. [2019-10-07 14:20:19,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:20:19,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2019-10-07 14:20:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:19,426 INFO L225 Difference]: With dead ends: 64661 [2019-10-07 14:20:19,427 INFO L226 Difference]: Without dead ends: 33600 [2019-10-07 14:20:19,494 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:20:19,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33600 states. [2019-10-07 14:20:20,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33600 to 33600. [2019-10-07 14:20:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33600 states. [2019-10-07 14:20:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33600 states to 33600 states and 59124 transitions. [2019-10-07 14:20:20,938 INFO L78 Accepts]: Start accepts. Automaton has 33600 states and 59124 transitions. Word has length 198 [2019-10-07 14:20:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:20,939 INFO L462 AbstractCegarLoop]: Abstraction has 33600 states and 59124 transitions. [2019-10-07 14:20:20,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:20:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 33600 states and 59124 transitions. [2019-10-07 14:20:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 14:20:20,951 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:20,951 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:21,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:21,165 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:21,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:21,165 INFO L82 PathProgramCache]: Analyzing trace with hash -873879158, now seen corresponding path program 1 times [2019-10-07 14:20:21,166 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:21,166 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:21,166 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:21,166 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:20:21,351 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:21,352 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:20:21,352 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:20:21,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:20:21,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:20:21,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:20:21,354 INFO L87 Difference]: Start difference. First operand 33600 states and 59124 transitions. Second operand 4 states. [2019-10-07 14:20:23,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:23,060 INFO L93 Difference]: Finished difference Result 69845 states and 125616 transitions. [2019-10-07 14:20:23,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:20:23,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2019-10-07 14:20:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:23,225 INFO L225 Difference]: With dead ends: 69845 [2019-10-07 14:20:23,225 INFO L226 Difference]: Without dead ends: 35776 [2019-10-07 14:20:23,306 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:20:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35776 states. [2019-10-07 14:20:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35776 to 35776. [2019-10-07 14:20:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35776 states. [2019-10-07 14:20:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35776 states to 35776 states and 60276 transitions. [2019-10-07 14:20:24,445 INFO L78 Accepts]: Start accepts. Automaton has 35776 states and 60276 transitions. Word has length 200 [2019-10-07 14:20:24,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:24,446 INFO L462 AbstractCegarLoop]: Abstraction has 35776 states and 60276 transitions. [2019-10-07 14:20:24,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:20:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 35776 states and 60276 transitions. [2019-10-07 14:20:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 14:20:24,452 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:24,452 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:24,453 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:24,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:24,453 INFO L82 PathProgramCache]: Analyzing trace with hash -144215365, now seen corresponding path program 1 times [2019-10-07 14:20:24,453 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:24,454 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:24,454 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:24,454 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:20:24,725 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:24,726 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:20:24,726 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:20:24,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:20:24,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:20:24,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:20:24,728 INFO L87 Difference]: Start difference. First operand 35776 states and 60276 transitions. Second operand 9 states. [2019-10-07 14:20:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:32,569 INFO L93 Difference]: Finished difference Result 81461 states and 141707 transitions. [2019-10-07 14:20:32,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 14:20:32,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2019-10-07 14:20:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:32,774 INFO L225 Difference]: With dead ends: 81461 [2019-10-07 14:20:32,775 INFO L226 Difference]: Without dead ends: 38523 [2019-10-07 14:20:32,880 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:20:32,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38523 states. [2019-10-07 14:20:35,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38523 to 37536. [2019-10-07 14:20:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37536 states. [2019-10-07 14:20:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37536 states to 37536 states and 60648 transitions. [2019-10-07 14:20:36,042 INFO L78 Accepts]: Start accepts. Automaton has 37536 states and 60648 transitions. Word has length 200 [2019-10-07 14:20:36,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:36,042 INFO L462 AbstractCegarLoop]: Abstraction has 37536 states and 60648 transitions. [2019-10-07 14:20:36,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:20:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 37536 states and 60648 transitions. [2019-10-07 14:20:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-07 14:20:36,049 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:36,049 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:36,050 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:36,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1322353057, now seen corresponding path program 1 times [2019-10-07 14:20:36,050 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:36,050 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:36,051 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:36,051 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:20:36,795 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:36,795 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:37,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:20:37,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:20:37,708 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:38,220 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:20:38,221 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:20:38,222 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [33] total 40 [2019-10-07 14:20:38,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:20:38,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:20:38,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 14:20:38,225 INFO L87 Difference]: Start difference. First operand 37536 states and 60648 transitions. Second operand 9 states. [2019-10-07 14:20:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:40,878 INFO L93 Difference]: Finished difference Result 38942 states and 67671 transitions. [2019-10-07 14:20:40,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:20:40,879 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2019-10-07 14:20:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:41,086 INFO L225 Difference]: With dead ends: 38942 [2019-10-07 14:20:41,086 INFO L226 Difference]: Without dead ends: 38723 [2019-10-07 14:20:41,115 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 400 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=1575, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:20:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38723 states. [2019-10-07 14:20:42,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38723 to 38019. [2019-10-07 14:20:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38019 states. [2019-10-07 14:20:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38019 states to 38019 states and 62966 transitions. [2019-10-07 14:20:42,426 INFO L78 Accepts]: Start accepts. Automaton has 38019 states and 62966 transitions. Word has length 201 [2019-10-07 14:20:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:42,426 INFO L462 AbstractCegarLoop]: Abstraction has 38019 states and 62966 transitions. [2019-10-07 14:20:42,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:20:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38019 states and 62966 transitions. [2019-10-07 14:20:42,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-07 14:20:42,432 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:42,432 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2019-10-07 14:20:42,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:42,779 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:42,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1214925474, now seen corresponding path program 1 times [2019-10-07 14:20:42,779 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:42,780 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:42,780 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:42,780 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:20:43,769 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:43,769 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:44,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:20:44,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:44,636 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:20:44,637 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:20:45,251 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:20:45,251 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [33] total 36 [2019-10-07 14:20:45,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:20:45,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:20:45,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1146, Unknown=0, NotChecked=0, Total=1260 [2019-10-07 14:20:45,262 INFO L87 Difference]: Start difference. First operand 38019 states and 62966 transitions. Second operand 5 states. [2019-10-07 14:20:46,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:46,532 INFO L93 Difference]: Finished difference Result 38238 states and 63210 transitions. [2019-10-07 14:20:46,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:20:46,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2019-10-07 14:20:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:46,729 INFO L225 Difference]: With dead ends: 38238 [2019-10-07 14:20:46,730 INFO L226 Difference]: Without dead ends: 38019 [2019-10-07 14:20:46,759 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 414 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2019-10-07 14:20:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38019 states. [2019-10-07 14:20:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38019 to 38019. [2019-10-07 14:20:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38019 states. [2019-10-07 14:20:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38019 states to 38019 states and 62873 transitions. [2019-10-07 14:20:49,759 INFO L78 Accepts]: Start accepts. Automaton has 38019 states and 62873 transitions. Word has length 206 [2019-10-07 14:20:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:49,759 INFO L462 AbstractCegarLoop]: Abstraction has 38019 states and 62873 transitions. [2019-10-07 14:20:49,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:20:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 38019 states and 62873 transitions. [2019-10-07 14:20:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-07 14:20:49,767 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:49,767 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:20:49,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:49,973 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:49,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:49,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1216220002, now seen corresponding path program 1 times [2019-10-07 14:20:49,974 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:49,974 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:49,974 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:49,974 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:49,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:20:50,665 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:50,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:51,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 3494 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 14:20:51,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-07 14:20:51,712 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-07 14:20:52,745 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:20:52,745 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [33] total 45 [2019-10-07 14:20:52,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:20:52,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:20:52,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1808, Unknown=0, NotChecked=0, Total=1980 [2019-10-07 14:20:52,748 INFO L87 Difference]: Start difference. First operand 38019 states and 62873 transitions. Second operand 14 states. [2019-10-07 14:21:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:21:00,153 INFO L93 Difference]: Finished difference Result 85221 states and 145079 transitions. [2019-10-07 14:21:00,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 14:21:00,153 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 221 [2019-10-07 14:21:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:21:00,328 INFO L225 Difference]: With dead ends: 85221 [2019-10-07 14:21:00,328 INFO L226 Difference]: Without dead ends: 47244 [2019-10-07 14:21:00,419 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=302, Invalid=2890, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 14:21:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47244 states. [2019-10-07 14:21:02,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47244 to 45590. [2019-10-07 14:21:02,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45590 states. [2019-10-07 14:21:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45590 states to 45590 states and 70862 transitions. [2019-10-07 14:21:02,325 INFO L78 Accepts]: Start accepts. Automaton has 45590 states and 70862 transitions. Word has length 221 [2019-10-07 14:21:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:21:02,326 INFO L462 AbstractCegarLoop]: Abstraction has 45590 states and 70862 transitions. [2019-10-07 14:21:02,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:21:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 45590 states and 70862 transitions. [2019-10-07 14:21:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-07 14:21:02,332 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:21:02,332 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:21:02,533 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:21:02,533 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:21:02,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:21:02,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2087279811, now seen corresponding path program 1 times [2019-10-07 14:21:02,535 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:21:02,535 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:21:02,535 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:21:02,536 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:21:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:21:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:21:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:21:03,434 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:21:03,434 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:21:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:21:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:21:04,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:21:04,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:21:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-07 14:21:04,507 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:21:04,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:21:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-07 14:21:05,172 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:21:05,172 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [33] total 40 [2019-10-07 14:21:05,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:21:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:21:05,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 14:21:05,174 INFO L87 Difference]: Start difference. First operand 45590 states and 70862 transitions. Second operand 9 states. [2019-10-07 14:21:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:21:06,166 INFO L93 Difference]: Finished difference Result 46281 states and 71648 transitions. [2019-10-07 14:21:06,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:21:06,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2019-10-07 14:21:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:21:06,322 INFO L225 Difference]: With dead ends: 46281 [2019-10-07 14:21:06,322 INFO L226 Difference]: Without dead ends: 46062 [2019-10-07 14:21:06,351 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-07 14:21:06,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46062 states. [2019-10-07 14:21:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46062 to 45978. [2019-10-07 14:21:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45978 states. [2019-10-07 14:21:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45978 states to 45978 states and 71252 transitions. [2019-10-07 14:21:09,590 INFO L78 Accepts]: Start accepts. Automaton has 45978 states and 71252 transitions. Word has length 224 [2019-10-07 14:21:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:21:09,590 INFO L462 AbstractCegarLoop]: Abstraction has 45978 states and 71252 transitions. [2019-10-07 14:21:09,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:21:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 45978 states and 71252 transitions. [2019-10-07 14:21:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-07 14:21:09,599 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:21:09,599 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 8, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:21:09,808 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:21:09,808 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:21:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:21:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1456923486, now seen corresponding path program 1 times [2019-10-07 14:21:09,809 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:21:09,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:21:09,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:21:09,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:21:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:21:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:21:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2019-10-07 14:21:10,141 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:21:10,141 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:21:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:21:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:21:11,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 4436 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 14:21:11,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:21:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 132 proven. 236 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2019-10-07 14:21:11,354 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:21:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2019-10-07 14:21:12,612 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:21:12,651 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-07 14:21:12,652 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:21:12,660 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:21:12,669 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:21:12,670 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:21:58,527 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 764 [2019-10-07 14:22:03,289 WARN L191 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:22:03,727 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:22:04,122 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:22:04,372 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:22:04,931 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:05,439 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:06,064 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:06,587 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:07,684 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1042 DAG size of output: 1040 [2019-10-07 14:22:08,150 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:08,707 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:09,177 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:09,644 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:10,157 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:22:10,175 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 391 for LOIs [2019-10-07 14:22:10,444 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:22:10,555 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:22:10,964 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:22:10,965 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1088 for LOIs [2019-10-07 14:22:11,413 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:11,870 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:12,004 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:12,780 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:13,248 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:13,710 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:13,840 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:14,625 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:15,122 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:15,590 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:15,732 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:16,514 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:17,344 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1088 [2019-10-07 14:22:17,814 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:18,109 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:19,057 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:19,545 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:20,012 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:20,141 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:20,960 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:21,436 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:21,916 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:22,045 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:22,832 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:23,290 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:23,746 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:23,877 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:24,659 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:25,113 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:25,565 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:25,690 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:26,475 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:26,942 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:27,411 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:27,537 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:28,329 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:28,788 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:29,267 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:29,393 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:30,207 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:30,675 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:31,142 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:31,269 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:32,056 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:32,529 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:33,000 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:33,136 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:33,925 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:34,391 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:34,864 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:22:34,991 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:35,803 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:36,749 WARN L191 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:37,556 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:37,699 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:38,522 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:39,999 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:40,787 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:40,923 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:41,707 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:42,492 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:43,292 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:43,419 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:44,223 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:45,064 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:45,859 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:45,997 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:46,814 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:48,169 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:22:48,964 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:22:49,100 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:49,910 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:51,243 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:22:52,035 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:22:52,163 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:52,982 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:53,800 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:22:54,617 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:22:54,749 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:55,571 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:22:56,392 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:57,228 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:57,363 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:58,170 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:58,998 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:59,811 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:59,950 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:00,754 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:02,230 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:23:03,042 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:03,331 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:04,206 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:05,034 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:05,852 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:05,982 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:06,786 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:08,963 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:09,758 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:09,931 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:10,735 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:12,209 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:12,992 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:13,124 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:13,900 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:14,686 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:15,497 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:15,625 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:16,428 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:18,504 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:19,295 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:19,429 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:20,232 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:21,696 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:23:22,500 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:22,637 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:23,447 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:24,808 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:25,611 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:25,738 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:26,559 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:28,014 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1269 [2019-10-07 14:23:28,843 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:23:28,978 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:29,788 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:23:31,278 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:23:32,101 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:32,237 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:33,062 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:23:34,530 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:35,374 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:35,509 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:36,329 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:37,742 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:38,522 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:38,655 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:39,451 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:40,264 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:41,091 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:41,219 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:42,018 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:43,474 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:44,293 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:44,426 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:45,235 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:46,723 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:47,532 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:47,666 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:48,466 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:49,274 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:50,096 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:50,222 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:51,030 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:52,426 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:53,245 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:53,383 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:54,218 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:55,588 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:56,413 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:56,551 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:57,366 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:58,173 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:58,994 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:59,123 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:59,935 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:01,398 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1262 [2019-10-07 14:24:02,197 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:24:02,334 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:03,161 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:04,597 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:24:05,395 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:05,529 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:06,337 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:07,775 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:24:08,561 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:08,692 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:09,490 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:10,294 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:11,090 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:11,217 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:12,017 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:13,517 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:24:14,336 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:14,470 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:15,278 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:16,642 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:24:17,432 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:24:17,564 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:18,345 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:19,654 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:24:20,441 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:24:20,569 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:21,356 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:22,754 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:24:23,529 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:24:23,659 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:24,424 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:25,726 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:24:26,499 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:26,629 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:27,408 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:24:28,759 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:24:29,549 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:29,678 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:30,434 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:24:31,715 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:24:32,472 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:32,602 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:33,364 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:24:34,721 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:24:35,466 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:35,593 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:36,364 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:37,834 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:24:38,591 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:38,719 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:39,471 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:40,222 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:40,982 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:41,102 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:41,869 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:43,272 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:24:44,060 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:44,194 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:44,986 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:46,377 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:24:47,151 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:47,287 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:48,075 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:48,845 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:49,618 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:49,742 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:50,511 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:51,896 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:24:52,667 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:24:52,801 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:53,578 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:54,893 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:24:55,656 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:24:55,786 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:24:56,562 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:24:57,992 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:24:58,785 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:58,913 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:24:59,695 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:01,099 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:25:01,879 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:02,019 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:02,813 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:04,268 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:25:05,057 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:05,200 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:05,972 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:07,353 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:25:08,146 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:08,275 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:09,063 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:09,857 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:10,635 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:10,760 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:11,539 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:12,968 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:25:13,754 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:25:13,891 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:25:14,693 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:25:15,998 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:25:16,787 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:25:16,940 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:25:17,734 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:25:17,747 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:25:18,249 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:25:18,748 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:25:18,875 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:19,668 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:20,220 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:20,749 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:20,875 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:21,661 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:22,631 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1124 [2019-10-07 14:25:23,161 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:23,291 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:24,080 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:24,612 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:25,130 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:25,255 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:26,040 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:26,552 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:27,065 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:27,190 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:27,984 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:28,511 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:29,029 WARN L191 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:25:29,151 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:25:29,916 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:25:30,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:30,190 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:25:30,195 INFO L168 Benchmark]: Toolchain (without parser) took 363298.25 ms. Allocated memory was 137.4 MB in the beginning and 3.4 GB in the end (delta: 3.3 GB). Free memory was 99.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,195 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1103.82 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 139.1 MB in the end (delta: -40.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,196 INFO L168 Benchmark]: Boogie Preprocessor took 232.38 ms. Allocated memory is still 200.8 MB. Free memory was 139.1 MB in the beginning and 128.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,197 INFO L168 Benchmark]: RCFGBuilder took 4971.12 ms. Allocated memory was 200.8 MB in the beginning and 312.0 MB in the end (delta: 111.1 MB). Free memory was 128.9 MB in the beginning and 248.7 MB in the end (delta: -119.8 MB). Peak memory consumption was 171.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,197 INFO L168 Benchmark]: TraceAbstraction took 356986.88 ms. Allocated memory was 312.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 248.7 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:25:30,199 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1103.82 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 139.1 MB in the end (delta: -40.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.38 ms. Allocated memory is still 200.8 MB. Free memory was 139.1 MB in the beginning and 128.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4971.12 ms. Allocated memory was 200.8 MB in the beginning and 312.0 MB in the end (delta: 111.1 MB). Free memory was 128.9 MB in the beginning and 248.7 MB in the end (delta: -119.8 MB). Peak memory consumption was 171.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 356986.88 ms. Allocated memory was 312.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 248.7 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...