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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:34:14,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:34:14,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:34:14,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:34:14,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:34:14,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:34:14,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:34:14,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:34:14,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:34:14,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:34:14,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:34:14,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:34:14,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:34:14,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:34:14,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:34:14,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:34:14,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:34:14,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:34:14,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:34:14,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:34:14,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:34:14,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:34:14,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:34:14,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:34:14,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:34:14,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:34:14,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:34:14,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:34:14,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:34:14,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:34:14,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:34:14,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:34:14,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:34:14,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:34:14,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:34:14,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:34:14,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:34:14,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:34:14,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:34:14,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:34:14,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:34:14,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:34:14,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:34:14,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:34:14,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:34:14,365 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:34:14,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:34:14,366 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:34:14,366 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:34:14,367 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:34:14,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:34:14,367 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:34:14,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:34:14,368 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:34:14,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:34:14,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:34:14,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:34:14,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:34:14,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:34:14,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:34:14,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:34:14,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:34:14,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:34:14,370 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:34:14,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:34:14,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:34:14,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:34:14,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:34:14,371 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:34:14,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:34:14,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:34:14,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:34:14,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:34:14,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:34:14,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:34:14,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:34:14,445 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:34:14,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product23.cil.c [2019-09-10 02:34:14,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27e8b9e5/e7b9234d680b446aaa3b2d37c4644293/FLAGa249c2335 [2019-09-10 02:34:15,180 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:34:15,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product23.cil.c [2019-09-10 02:34:15,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27e8b9e5/e7b9234d680b446aaa3b2d37c4644293/FLAGa249c2335 [2019-09-10 02:34:15,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27e8b9e5/e7b9234d680b446aaa3b2d37c4644293 [2019-09-10 02:34:15,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:34:15,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:34:15,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:15,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:34:15,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:34:15,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:15" (1/1) ... [2019-09-10 02:34:15,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2c6ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:15, skipping insertion in model container [2019-09-10 02:34:15,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:15" (1/1) ... [2019-09-10 02:34:15,397 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:34:15,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:34:16,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:16,210 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:34:16,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:16,459 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:34:16,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16 WrapperNode [2019-09-10 02:34:16,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:16,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:34:16,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:34:16,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:34:16,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (1/1) ... [2019-09-10 02:34:16,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:34:16,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:34:16,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:34:16,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:34:16,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (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 [2019-09-10 02:34:16,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:34:16,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:34:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:34:16,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:34:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:34:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:34:16,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:34:16,769 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-09-10 02:34:16,770 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:34:16,770 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-09-10 02:34:16,771 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:34:16,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:34:16,772 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:34:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:34:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:34:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:34:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:34:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:34:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:34:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:34:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-09-10 02:34:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-09-10 02:34:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:34:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:34:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:34:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:34:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:34:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:34:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:34:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:34:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:34:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:34:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:34:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:34:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:34:16,781 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:34:16,781 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:34:16,781 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:34:16,781 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:34:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:34:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:34:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:34:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:34:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:34:16,783 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:34:16,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:34:16,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:34:16,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:34:16,784 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:34:16,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:34:16,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:16,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:16,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:16,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:34:16,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:34:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:34:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:34:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:34:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:34:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:34:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:34:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:34:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:34:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:34:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:34:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:34:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:34:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:34:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:34:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:34:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:34:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:34:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:34:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:34:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:34:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:34:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:34:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:34:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:34:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:34:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:34:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:34:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:34:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:34:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:34:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:34:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:34:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:34:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:34:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:34:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:34:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:34:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:34:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-09-10 02:34:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-09-10 02:34:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-09-10 02:34:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-09-10 02:34:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:34:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:34:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:34:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:34:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-09-10 02:34:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-09-10 02:34:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:34:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:34:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-09-10 02:34:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:34:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:34:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:34:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:34:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:34:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:34:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:34:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:34:16,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:34:16,810 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:34:16,810 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:34:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:34:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:34:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:34:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:34:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:34:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:34:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:34:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:34:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:34:19,426 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:34:19,426 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:34:19,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:19 BoogieIcfgContainer [2019-09-10 02:34:19,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:34:19,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:34:19,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:34:19,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:34:19,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:34:15" (1/3) ... [2019-09-10 02:34:19,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1659abdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:19, skipping insertion in model container [2019-09-10 02:34:19,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:16" (2/3) ... [2019-09-10 02:34:19,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1659abdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:19, skipping insertion in model container [2019-09-10 02:34:19,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:19" (3/3) ... [2019-09-10 02:34:19,437 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product23.cil.c [2019-09-10 02:34:19,448 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:34:19,459 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:34:19,478 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:34:19,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:34:19,506 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:34:19,507 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:34:19,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:34:19,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:34:19,507 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:34:19,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:34:19,507 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:34:19,551 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states. [2019-09-10 02:34:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 02:34:19,593 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:19,595 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:19,599 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:19,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1013618199, now seen corresponding path program 1 times [2019-09-10 02:34:19,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:19,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:19,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:19,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:19,664 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:20,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:20,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:20,388 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:20,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:20,413 INFO L87 Difference]: Start difference. First operand 821 states. Second operand 7 states. [2019-09-10 02:34:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:20,659 INFO L93 Difference]: Finished difference Result 680 states and 1072 transitions. [2019-09-10 02:34:20,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:20,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2019-09-10 02:34:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:20,705 INFO L225 Difference]: With dead ends: 680 [2019-09-10 02:34:20,705 INFO L226 Difference]: Without dead ends: 669 [2019-09-10 02:34:20,711 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2019-09-10 02:34:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2019-09-10 02:34:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-09-10 02:34:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1055 transitions. [2019-09-10 02:34:20,828 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1055 transitions. Word has length 141 [2019-09-10 02:34:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:20,829 INFO L475 AbstractCegarLoop]: Abstraction has 667 states and 1055 transitions. [2019-09-10 02:34:20,829 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1055 transitions. [2019-09-10 02:34:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 02:34:20,835 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:20,836 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:20,836 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:20,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1339739785, now seen corresponding path program 1 times [2019-09-10 02:34:20,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:20,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:20,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:20,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:20,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:21,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:21,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:34:21,050 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:21,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:34:21,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:34:21,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:34:21,053 INFO L87 Difference]: Start difference. First operand 667 states and 1055 transitions. Second operand 4 states. [2019-09-10 02:34:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:21,122 INFO L93 Difference]: Finished difference Result 665 states and 1050 transitions. [2019-09-10 02:34:21,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:34:21,123 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2019-09-10 02:34:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:21,130 INFO L225 Difference]: With dead ends: 665 [2019-09-10 02:34:21,130 INFO L226 Difference]: Without dead ends: 649 [2019-09-10 02:34:21,131 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2019-09-10 02:34:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2019-09-10 02:34:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-09-10 02:34:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1022 transitions. [2019-09-10 02:34:21,165 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1022 transitions. Word has length 142 [2019-09-10 02:34:21,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:21,166 INFO L475 AbstractCegarLoop]: Abstraction has 649 states and 1022 transitions. [2019-09-10 02:34:21,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:34:21,166 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1022 transitions. [2019-09-10 02:34:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 02:34:21,170 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:21,170 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:21,171 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:21,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:21,171 INFO L82 PathProgramCache]: Analyzing trace with hash -415526825, now seen corresponding path program 1 times [2019-09-10 02:34:21,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:21,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:21,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:21,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:21,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:21,458 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:21,459 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:21,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:21,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:21,460 INFO L87 Difference]: Start difference. First operand 649 states and 1022 transitions. Second operand 7 states. [2019-09-10 02:34:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:21,576 INFO L93 Difference]: Finished difference Result 652 states and 1025 transitions. [2019-09-10 02:34:21,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:21,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 02:34:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:21,586 INFO L225 Difference]: With dead ends: 652 [2019-09-10 02:34:21,586 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:21,586 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:21,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:21,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1009 transitions. [2019-09-10 02:34:21,626 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1009 transitions. Word has length 142 [2019-09-10 02:34:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:21,627 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 1009 transitions. [2019-09-10 02:34:21,627 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1009 transitions. [2019-09-10 02:34:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-09-10 02:34:21,636 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:21,636 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:21,636 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:21,637 INFO L82 PathProgramCache]: Analyzing trace with hash -390482629, now seen corresponding path program 1 times [2019-09-10 02:34:21,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:21,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:21,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,639 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:21,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:21,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:21,840 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:21,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:21,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:21,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:21,843 INFO L87 Difference]: Start difference. First operand 643 states and 1009 transitions. Second operand 7 states. [2019-09-10 02:34:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:21,938 INFO L93 Difference]: Finished difference Result 646 states and 1012 transitions. [2019-09-10 02:34:21,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:21,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-09-10 02:34:21,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:21,946 INFO L225 Difference]: With dead ends: 646 [2019-09-10 02:34:21,946 INFO L226 Difference]: Without dead ends: 637 [2019-09-10 02:34:21,947 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2019-09-10 02:34:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2019-09-10 02:34:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2019-09-10 02:34:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 996 transitions. [2019-09-10 02:34:21,977 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 996 transitions. Word has length 143 [2019-09-10 02:34:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:21,977 INFO L475 AbstractCegarLoop]: Abstraction has 637 states and 996 transitions. [2019-09-10 02:34:21,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 996 transitions. [2019-09-10 02:34:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-10 02:34:21,983 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:21,984 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:21,984 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:21,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1764754427, now seen corresponding path program 1 times [2019-09-10 02:34:21,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:21,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:21,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:22,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:22,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:22,183 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:22,184 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:22,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:22,185 INFO L87 Difference]: Start difference. First operand 637 states and 996 transitions. Second operand 7 states. [2019-09-10 02:34:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:22,331 INFO L93 Difference]: Finished difference Result 640 states and 999 transitions. [2019-09-10 02:34:22,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:22,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-09-10 02:34:22,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:22,337 INFO L225 Difference]: With dead ends: 640 [2019-09-10 02:34:22,337 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:22,338 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 983 transitions. [2019-09-10 02:34:22,358 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 983 transitions. Word has length 144 [2019-09-10 02:34:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:22,360 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 983 transitions. [2019-09-10 02:34:22,360 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 983 transitions. [2019-09-10 02:34:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-10 02:34:22,364 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:22,364 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:22,364 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash 525807612, now seen corresponding path program 1 times [2019-09-10 02:34:22,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:22,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:22,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:22,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:22,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:22,547 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:22,547 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:22,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:22,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:22,551 INFO L87 Difference]: Start difference. First operand 631 states and 983 transitions. Second operand 7 states. [2019-09-10 02:34:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:22,629 INFO L93 Difference]: Finished difference Result 634 states and 986 transitions. [2019-09-10 02:34:22,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:22,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-09-10 02:34:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:22,637 INFO L225 Difference]: With dead ends: 634 [2019-09-10 02:34:22,637 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:22,638 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:22,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 982 transitions. [2019-09-10 02:34:22,667 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 982 transitions. Word has length 144 [2019-09-10 02:34:22,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:22,668 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 982 transitions. [2019-09-10 02:34:22,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:22,668 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 982 transitions. [2019-09-10 02:34:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-10 02:34:22,672 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:22,672 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-10 02:34:22,673 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:22,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:22,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1236493407, now seen corresponding path program 1 times [2019-09-10 02:34:22,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:22,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:22,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,677 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:22,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:22,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:22,838 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:22,838 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:22,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:22,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:22,839 INFO L87 Difference]: Start difference. First operand 631 states and 982 transitions. Second operand 5 states. [2019-09-10 02:34:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:22,917 INFO L93 Difference]: Finished difference Result 633 states and 983 transitions. [2019-09-10 02:34:22,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:22,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2019-09-10 02:34:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:22,923 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:22,923 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:22,924 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:22,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 981 transitions. [2019-09-10 02:34:22,947 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 981 transitions. Word has length 145 [2019-09-10 02:34:22,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:22,948 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 981 transitions. [2019-09-10 02:34:22,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 981 transitions. [2019-09-10 02:34:22,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-10 02:34:22,955 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:22,955 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:22,955 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1973263729, now seen corresponding path program 1 times [2019-09-10 02:34:22,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:22,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:22,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:22,957 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:23,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:23,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:23,161 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:23,162 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:23,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:23,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:23,163 INFO L87 Difference]: Start difference. First operand 631 states and 981 transitions. Second operand 5 states. [2019-09-10 02:34:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:23,230 INFO L93 Difference]: Finished difference Result 633 states and 982 transitions. [2019-09-10 02:34:23,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:23,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-09-10 02:34:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:23,237 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:23,237 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:23,238 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:23,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 980 transitions. [2019-09-10 02:34:23,271 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 980 transitions. Word has length 146 [2019-09-10 02:34:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,271 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 980 transitions. [2019-09-10 02:34:23,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 980 transitions. [2019-09-10 02:34:23,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-10 02:34:23,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,279 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,279 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,280 INFO L82 PathProgramCache]: Analyzing trace with hash 696479226, now seen corresponding path program 1 times [2019-09-10 02:34:23,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:23,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:23,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:23,490 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:23,491 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:23,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:23,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:23,492 INFO L87 Difference]: Start difference. First operand 631 states and 980 transitions. Second operand 5 states. [2019-09-10 02:34:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:23,575 INFO L93 Difference]: Finished difference Result 633 states and 981 transitions. [2019-09-10 02:34:23,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:23,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2019-09-10 02:34:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:23,586 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:23,587 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:23,588 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 979 transitions. [2019-09-10 02:34:23,623 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 979 transitions. Word has length 147 [2019-09-10 02:34:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,624 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 979 transitions. [2019-09-10 02:34:23,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 979 transitions. [2019-09-10 02:34:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-10 02:34:23,631 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,631 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,632 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1424004588, now seen corresponding path program 1 times [2019-09-10 02:34:23,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:23,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:23,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:23,849 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:23,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:23,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:23,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:23,851 INFO L87 Difference]: Start difference. First operand 631 states and 979 transitions. Second operand 5 states. [2019-09-10 02:34:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:23,915 INFO L93 Difference]: Finished difference Result 633 states and 980 transitions. [2019-09-10 02:34:23,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:23,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-09-10 02:34:23,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:23,922 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:23,922 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:23,923 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:23,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 978 transitions. [2019-09-10 02:34:23,952 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 978 transitions. Word has length 148 [2019-09-10 02:34:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,953 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 978 transitions. [2019-09-10 02:34:23,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 978 transitions. [2019-09-10 02:34:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-10 02:34:23,958 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,958 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,958 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,959 INFO L82 PathProgramCache]: Analyzing trace with hash -139373675, now seen corresponding path program 1 times [2019-09-10 02:34:23,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,960 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-10 02:34:24,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:34:24,182 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:34:24,183 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2019-09-10 02:34:24,196 INFO L207 CegarAbsIntRunner]: [67], [68], [69], [70], [327], [331], [334], [405], [406], [408], [409], [428], [430], [433], [435], [439], [488], [490], [492], [608], [611], [708], [711], [716], [719], [745], [750], [783], [784], [819], [821], [850], [852], [855], [857], [863], [867], [868], [869], [870], [906], [942], [978], [1014], [1017], [1020], [1053], [1106], [1111], [1116], [1121], [1126], [1129], [1133], [1318], [1321], [1343], [1344], [1357], [1360], [1366], [1370], [1483], [1484], [1518], [1521], [1523], [1526], [1604], [1606], [1608], [1683], [1696], [1710], [1724], [1738], [1752], [1754], [2350], [2354], [2357], [2375], [2550], [2551], [2552], [2553], [2554], [2555], [2556], [2557], [2558], [2596], [2597], [2606], [2607], [2608], [2609], [2612], [2613], [2614], [2615], [2616], [2617], [2618], [2619], [2620], [2656], [2657], [2658], [2659], [2688], [2689], [2690], [2691], [2702], [2712], [2713], [2714], [2715], [2716], [2717], [2722], [2723], [2724], [2750], [2764], [2765], [2766], [2782], [2783], [2784], [2785], [2838], [2839], [2840] [2019-09-10 02:34:24,268 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:34:24,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:34:24,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:34:24,387 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 149 root evaluator evaluations with a maximum evaluation depth of 0. Performed 149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 256 variables. [2019-09-10 02:34:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:24,392 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:34:24,475 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:34:24,476 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:34:24,526 INFO L420 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2019-09-10 02:34:24,527 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:34:24,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:34:24,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-10 02:34:24,528 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:24,529 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:34:24,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:34:24,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:24,529 INFO L87 Difference]: Start difference. First operand 631 states and 978 transitions. Second operand 2 states. [2019-09-10 02:34:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:24,530 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:34:24,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:34:24,531 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-09-10 02:34:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:24,531 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:34:24,531 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:34:24,532 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:24,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:34:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:34:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:34:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:34:24,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2019-09-10 02:34:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:24,533 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:34:24,533 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:34:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:34:24,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:34:24,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:34:24 BoogieIcfgContainer [2019-09-10 02:34:24,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:34:24,544 INFO L168 Benchmark]: Toolchain (without parser) took 9163.90 ms. Allocated memory was 140.5 MB in the beginning and 396.4 MB in the end (delta: 255.9 MB). Free memory was 84.6 MB in the beginning and 328.4 MB in the end (delta: -243.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:24,545 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:34:24,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1079.99 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 137.1 MB in the end (delta: -52.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:24,547 INFO L168 Benchmark]: Boogie Preprocessor took 220.84 ms. Allocated memory is still 200.8 MB. Free memory was 137.1 MB in the beginning and 127.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:24,548 INFO L168 Benchmark]: RCFGBuilder took 2747.14 ms. Allocated memory was 200.8 MB in the beginning and 262.1 MB in the end (delta: 61.3 MB). Free memory was 127.3 MB in the beginning and 138.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:24,549 INFO L168 Benchmark]: TraceAbstraction took 5111.24 ms. Allocated memory was 262.1 MB in the beginning and 396.4 MB in the end (delta: 134.2 MB). Free memory was 138.4 MB in the beginning and 328.4 MB in the end (delta: -190.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:34:24,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1079.99 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 137.1 MB in the end (delta: -52.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 220.84 ms. Allocated memory is still 200.8 MB. Free memory was 137.1 MB in the beginning and 127.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2747.14 ms. Allocated memory was 200.8 MB in the beginning and 262.1 MB in the end (delta: 61.3 MB). Free memory was 127.3 MB in the beginning and 138.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5111.24 ms. Allocated memory was 262.1 MB in the beginning and 396.4 MB in the end (delta: 134.2 MB). Free memory was 138.4 MB in the beginning and 328.4 MB in the end (delta: -190.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 78 procedures, 949 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9935 SDtfs, 375 SDslu, 38426 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.9797297297297298 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1591 NumberOfCodeBlocks, 1591 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1580 ConstructedInterpolants, 0 QuantifiedInterpolants, 269252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 227/231 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...