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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:34:35,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:34:35,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:34:35,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:34:35,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:34:35,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:34:35,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:34:35,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:34:35,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:34:35,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:34:35,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:34:35,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:34:35,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:34:35,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:34:35,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:34:35,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:34:35,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:34:35,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:34:35,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:34:35,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:34:35,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:34:35,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:34:35,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:34:35,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:34:35,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:34:35,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:34:35,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:34:35,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:34:35,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:34:35,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:34:35,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:34:35,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:34:35,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:34:35,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:34:35,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:34:35,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:34:35,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:34:35,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:34:35,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:34:35,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:34:35,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:34:35,466 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 02:34:35,488 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:34:35,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:34:35,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:34:35,489 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:34:35,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:34:35,490 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:34:35,490 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:34:35,490 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:34:35,491 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:34:35,491 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:34:35,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:34:35,492 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:34:35,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:34:35,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:34:35,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:34:35,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:34:35,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:34:35,494 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:34:35,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:34:35,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:34:35,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:34:35,495 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:34:35,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:34:35,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:34:35,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:34:35,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:34:35,496 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:34:35,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:34:35,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:34:35,498 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:34:35,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:34:35,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:34:35,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:34:35,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:34:35,579 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:34:35,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c [2019-09-10 02:34:35,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ede476/0aa6b3f9bb6a4ea5aa23f193fc72e6d6/FLAGc4f4711c1 [2019-09-10 02:34:36,221 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:34:36,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c [2019-09-10 02:34:36,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ede476/0aa6b3f9bb6a4ea5aa23f193fc72e6d6/FLAGc4f4711c1 [2019-09-10 02:34:36,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8ede476/0aa6b3f9bb6a4ea5aa23f193fc72e6d6 [2019-09-10 02:34:36,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:34:36,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:34:36,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:36,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:34:36,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:34:36,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:36" (1/1) ... [2019-09-10 02:34:36,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613a2159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:36, skipping insertion in model container [2019-09-10 02:34:36,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:36" (1/1) ... [2019-09-10 02:34:36,482 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:34:36,572 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:34:37,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:37,258 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:34:37,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:37,480 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:34:37,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37 WrapperNode [2019-09-10 02:34:37,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:37,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:34:37,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:34:37,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:34:37,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (1/1) ... [2019-09-10 02:34:37,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:34:37,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:34:37,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:34:37,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:34:37,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (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 02:34:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:34:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:34:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:34:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:34:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:34:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:34:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:34:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:34:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:34:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:34:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:34:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:34:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:34:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:34:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:34:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:34:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:34:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:34:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:34:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:34:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:34:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:34:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:34:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:34:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:34:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:34:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:34:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:34:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:34:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-09-10 02:34:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:34:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:34:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:34:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:34:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:34:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:34:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:34:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:34:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:34:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:34:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:34:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:34:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:34:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:34:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:34:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:34:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:34:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:34:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:34:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:34:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:34:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:34:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:34:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:34:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:34:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:34:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:34:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:34:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:34:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:34:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:34:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:34:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:34:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:34:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:34:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:34:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:34:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:34:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:34:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:34:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:34:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-09-10 02:34:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:34:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:34:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-09-10 02:34:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:34:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:34:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2019-09-10 02:34:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:34:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:34:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:34:40,255 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:34:40,256 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:34:40,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:40 BoogieIcfgContainer [2019-09-10 02:34:40,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:34:40,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:34:40,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:34:40,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:34:40,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:34:36" (1/3) ... [2019-09-10 02:34:40,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef8a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:40, skipping insertion in model container [2019-09-10 02:34:40,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:37" (2/3) ... [2019-09-10 02:34:40,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef8a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:40, skipping insertion in model container [2019-09-10 02:34:40,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:40" (3/3) ... [2019-09-10 02:34:40,267 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product30.cil.c [2019-09-10 02:34:40,277 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:34:40,288 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:34:40,309 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:34:40,351 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:34:40,352 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:34:40,352 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:34:40,352 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:34:40,352 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:34:40,352 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:34:40,352 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:34:40,352 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:34:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states. [2019-09-10 02:34:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:34:40,423 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:40,424 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:40,427 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:40,433 INFO L82 PathProgramCache]: Analyzing trace with hash -517745057, now seen corresponding path program 1 times [2019-09-10 02:34:40,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:40,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:40,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:40,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:40,487 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:41,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:41,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:41,124 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:41,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:41,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:41,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:41,149 INFO L87 Difference]: Start difference. First operand 828 states. Second operand 7 states. [2019-09-10 02:34:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:41,500 INFO L93 Difference]: Finished difference Result 680 states and 1074 transitions. [2019-09-10 02:34:41,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:41,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-09-10 02:34:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:41,540 INFO L225 Difference]: With dead ends: 680 [2019-09-10 02:34:41,540 INFO L226 Difference]: Without dead ends: 669 [2019-09-10 02:34:41,546 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 02:34:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2019-09-10 02:34:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2019-09-10 02:34:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-09-10 02:34:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1057 transitions. [2019-09-10 02:34:41,687 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1057 transitions. Word has length 93 [2019-09-10 02:34:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:41,688 INFO L475 AbstractCegarLoop]: Abstraction has 667 states and 1057 transitions. [2019-09-10 02:34:41,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1057 transitions. [2019-09-10 02:34:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:34:41,700 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:41,701 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:41,701 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:41,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1718929765, now seen corresponding path program 1 times [2019-09-10 02:34:41,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:41,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:41,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:41,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:41,703 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:41,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:41,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:34:41,927 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:41,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:34:41,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:34:41,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:34:41,929 INFO L87 Difference]: Start difference. First operand 667 states and 1057 transitions. Second operand 4 states. [2019-09-10 02:34:41,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:41,992 INFO L93 Difference]: Finished difference Result 665 states and 1052 transitions. [2019-09-10 02:34:41,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:34:41,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-09-10 02:34:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:42,003 INFO L225 Difference]: With dead ends: 665 [2019-09-10 02:34:42,004 INFO L226 Difference]: Without dead ends: 649 [2019-09-10 02:34:42,005 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 02:34:42,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2019-09-10 02:34:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2019-09-10 02:34:42,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-09-10 02:34:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1024 transitions. [2019-09-10 02:34:42,064 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1024 transitions. Word has length 94 [2019-09-10 02:34:42,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:42,067 INFO L475 AbstractCegarLoop]: Abstraction has 649 states and 1024 transitions. [2019-09-10 02:34:42,070 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:34:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1024 transitions. [2019-09-10 02:34:42,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:34:42,075 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:42,076 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:42,076 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:42,077 INFO L82 PathProgramCache]: Analyzing trace with hash -495368691, now seen corresponding path program 1 times [2019-09-10 02:34:42,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:42,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:42,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,078 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:42,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:42,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:42,370 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:42,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:42,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:42,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:42,371 INFO L87 Difference]: Start difference. First operand 649 states and 1024 transitions. Second operand 7 states. [2019-09-10 02:34:42,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:42,557 INFO L93 Difference]: Finished difference Result 652 states and 1027 transitions. [2019-09-10 02:34:42,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:42,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-09-10 02:34:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:42,566 INFO L225 Difference]: With dead ends: 652 [2019-09-10 02:34:42,566 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:42,567 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 02:34:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1011 transitions. [2019-09-10 02:34:42,607 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1011 transitions. Word has length 94 [2019-09-10 02:34:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:42,608 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 1011 transitions. [2019-09-10 02:34:42,609 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1011 transitions. [2019-09-10 02:34:42,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-10 02:34:42,613 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:42,613 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:42,613 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:42,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:42,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1956512957, now seen corresponding path program 1 times [2019-09-10 02:34:42,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:42,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:42,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,616 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:42,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:42,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:42,839 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:42,840 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:42,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:42,841 INFO L87 Difference]: Start difference. First operand 643 states and 1011 transitions. Second operand 7 states. [2019-09-10 02:34:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:42,947 INFO L93 Difference]: Finished difference Result 646 states and 1014 transitions. [2019-09-10 02:34:42,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:42,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-09-10 02:34:42,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:42,953 INFO L225 Difference]: With dead ends: 646 [2019-09-10 02:34:42,954 INFO L226 Difference]: Without dead ends: 637 [2019-09-10 02:34:42,954 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 02:34:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2019-09-10 02:34:42,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2019-09-10 02:34:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2019-09-10 02:34:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 998 transitions. [2019-09-10 02:34:42,978 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 998 transitions. Word has length 95 [2019-09-10 02:34:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:42,978 INFO L475 AbstractCegarLoop]: Abstraction has 637 states and 998 transitions. [2019-09-10 02:34:42,979 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 998 transitions. [2019-09-10 02:34:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:34:42,981 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:42,981 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:42,981 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:42,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2132810737, now seen corresponding path program 1 times [2019-09-10 02:34:42,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:42,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:42,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:42,983 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:43,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:43,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:43,134 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:43,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:43,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:43,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:43,136 INFO L87 Difference]: Start difference. First operand 637 states and 998 transitions. Second operand 7 states. [2019-09-10 02:34:43,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:43,219 INFO L93 Difference]: Finished difference Result 640 states and 1001 transitions. [2019-09-10 02:34:43,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:43,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:34:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:43,231 INFO L225 Difference]: With dead ends: 640 [2019-09-10 02:34:43,232 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:43,232 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 02:34:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 985 transitions. [2019-09-10 02:34:43,259 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 985 transitions. Word has length 96 [2019-09-10 02:34:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:43,259 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 985 transitions. [2019-09-10 02:34:43,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 985 transitions. [2019-09-10 02:34:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:34:43,261 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:43,261 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:43,262 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:43,262 INFO L82 PathProgramCache]: Analyzing trace with hash -773214734, now seen corresponding path program 1 times [2019-09-10 02:34:43,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:43,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:43,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,264 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:43,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:43,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:43,445 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:43,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:43,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:43,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:43,448 INFO L87 Difference]: Start difference. First operand 631 states and 985 transitions. Second operand 7 states. [2019-09-10 02:34:43,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:43,530 INFO L93 Difference]: Finished difference Result 634 states and 988 transitions. [2019-09-10 02:34:43,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:43,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:34:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:43,540 INFO L225 Difference]: With dead ends: 634 [2019-09-10 02:34:43,540 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:43,541 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 02:34:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 984 transitions. [2019-09-10 02:34:43,570 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 984 transitions. Word has length 96 [2019-09-10 02:34:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:43,572 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 984 transitions. [2019-09-10 02:34:43,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 984 transitions. [2019-09-10 02:34:43,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:34:43,575 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:43,575 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:43,575 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:43,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:43,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2101985241, now seen corresponding path program 1 times [2019-09-10 02:34:43,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:43,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:43,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,616 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:43,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:43,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:43,752 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:43,753 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:43,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:43,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:43,754 INFO L87 Difference]: Start difference. First operand 631 states and 984 transitions. Second operand 5 states. [2019-09-10 02:34:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:43,819 INFO L93 Difference]: Finished difference Result 633 states and 985 transitions. [2019-09-10 02:34:43,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:43,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-09-10 02:34:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:43,825 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:43,825 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:43,825 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 02:34:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:43,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 983 transitions. [2019-09-10 02:34:43,847 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 983 transitions. Word has length 97 [2019-09-10 02:34:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:43,848 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 983 transitions. [2019-09-10 02:34:43,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 983 transitions. [2019-09-10 02:34:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:34:43,851 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:43,851 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:43,853 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:43,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1046303197, now seen corresponding path program 1 times [2019-09-10 02:34:43,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:43,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:43,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:43,854 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:43,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:43,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:43,976 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:43,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:43,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:43,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:43,978 INFO L87 Difference]: Start difference. First operand 631 states and 983 transitions. Second operand 5 states. [2019-09-10 02:34:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:44,037 INFO L93 Difference]: Finished difference Result 633 states and 984 transitions. [2019-09-10 02:34:44,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:44,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-09-10 02:34:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:44,042 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:44,042 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:44,043 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 02:34:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:44,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:44,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 982 transitions. [2019-09-10 02:34:44,064 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 982 transitions. Word has length 98 [2019-09-10 02:34:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:44,064 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 982 transitions. [2019-09-10 02:34:44,064 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 982 transitions. [2019-09-10 02:34:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 02:34:44,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:44,066 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:44,066 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:44,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:44,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2126960382, now seen corresponding path program 1 times [2019-09-10 02:34:44,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:44,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:44,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,068 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:44,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:44,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:44,177 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:44,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:44,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:44,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:44,178 INFO L87 Difference]: Start difference. First operand 631 states and 982 transitions. Second operand 5 states. [2019-09-10 02:34:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:44,234 INFO L93 Difference]: Finished difference Result 633 states and 983 transitions. [2019-09-10 02:34:44,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:44,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-09-10 02:34:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:44,240 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:44,240 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:44,241 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 02:34:44,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 981 transitions. [2019-09-10 02:34:44,262 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 981 transitions. Word has length 99 [2019-09-10 02:34:44,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:44,262 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 981 transitions. [2019-09-10 02:34:44,262 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 981 transitions. [2019-09-10 02:34:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-10 02:34:44,264 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:44,264 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:44,265 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:44,265 INFO L82 PathProgramCache]: Analyzing trace with hash -714656930, now seen corresponding path program 1 times [2019-09-10 02:34:44,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:44,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:44,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,267 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:44,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:44,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:44,429 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:44,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:44,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:44,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:44,430 INFO L87 Difference]: Start difference. First operand 631 states and 981 transitions. Second operand 5 states. [2019-09-10 02:34:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:44,486 INFO L93 Difference]: Finished difference Result 633 states and 982 transitions. [2019-09-10 02:34:44,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:44,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-10 02:34:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:44,492 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:34:44,492 INFO L226 Difference]: Without dead ends: 631 [2019-09-10 02:34:44,493 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 02:34:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-10 02:34:44,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-09-10 02:34:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:34:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 980 transitions. [2019-09-10 02:34:44,512 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 980 transitions. Word has length 100 [2019-09-10 02:34:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:44,513 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 980 transitions. [2019-09-10 02:34:44,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 980 transitions. [2019-09-10 02:34:44,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:34:44,514 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:44,515 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:44,515 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:44,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:44,515 INFO L82 PathProgramCache]: Analyzing trace with hash 670014941, now seen corresponding path program 1 times [2019-09-10 02:34:44,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:44,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:44,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:44,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:34:44,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:34:44,693 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:34:44,695 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-09-10 02:34:44,697 INFO L207 CegarAbsIntRunner]: [60], [61], [62], [63], [140], [144], [147], [384], [451], [453], [455], [861], [864], [867], [870], [1013], [1014], [1015], [1020], [1087], [1088], [1089], [1091], [1146], [1182], [1218], [1254], [1290], [1293], [1296], [1329], [1330], [1331], [1382], [1387], [1392], [1397], [1402], [1405], [1409], [1594], [1597], [1619], [1759], [1760], [1800], [1803], [1805], [1808], [1886], [1888], [1890], [1893], [1906], [1920], [1934], [1948], [1962], [2036], [2343], [2548], [2549], [2550], [2551], [2552], [2553], [2554], [2555], [2556], [2602], [2603], [2604], [2605], [2606], [2607], [2608], [2609], [2610], [2660], [2661], [2662], [2663], [2668], [2696], [2697], [2708], [2709], [2710], [2716], [2750], [2751], [2752], [2768], [2769], [2770], [2771], [2840], [2841], [2842] [2019-09-10 02:34:44,750 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:34:44,751 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:34:44,912 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:34:44,916 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 152 root evaluator evaluations with a maximum evaluation depth of 0. Performed 152 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 260 variables. [2019-09-10 02:34:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:44,923 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:34:44,982 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:34:44,983 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:34:44,987 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-09-10 02:34:44,987 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:34:44,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:34:44,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:34:44,988 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:44,989 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:34:44,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:34:44,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:44,990 INFO L87 Difference]: Start difference. First operand 631 states and 980 transitions. Second operand 2 states. [2019-09-10 02:34:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:44,991 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:34:44,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:34:44,991 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-09-10 02:34:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:44,991 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:34:44,992 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:34:44,992 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 02:34:44,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:34:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:34:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:34:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:34:44,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-09-10 02:34:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:44,994 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:34:44,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:34:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:34:44,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:34:45,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:34:45 BoogieIcfgContainer [2019-09-10 02:34:45,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:34:45,005 INFO L168 Benchmark]: Toolchain (without parser) took 8537.59 ms. Allocated memory was 134.2 MB in the beginning and 386.4 MB in the end (delta: 252.2 MB). Free memory was 87.1 MB in the beginning and 228.5 MB in the end (delta: -141.4 MB). Peak memory consumption was 110.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,006 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1015.03 ms. Allocated memory was 134.2 MB in the beginning and 202.4 MB in the end (delta: 68.2 MB). Free memory was 86.9 MB in the beginning and 137.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,008 INFO L168 Benchmark]: Boogie Preprocessor took 243.60 ms. Allocated memory is still 202.4 MB. Free memory was 137.5 MB in the beginning and 128.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,009 INFO L168 Benchmark]: RCFGBuilder took 2531.63 ms. Allocated memory was 202.4 MB in the beginning and 262.7 MB in the end (delta: 60.3 MB). Free memory was 128.2 MB in the beginning and 135.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,011 INFO L168 Benchmark]: TraceAbstraction took 4742.85 ms. Allocated memory was 262.7 MB in the beginning and 386.4 MB in the end (delta: 123.7 MB). Free memory was 135.9 MB in the beginning and 228.5 MB in the end (delta: -92.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:45,015 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1015.03 ms. Allocated memory was 134.2 MB in the beginning and 202.4 MB in the end (delta: 68.2 MB). Free memory was 86.9 MB in the beginning and 137.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 243.60 ms. Allocated memory is still 202.4 MB. Free memory was 137.5 MB in the beginning and 128.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2531.63 ms. Allocated memory was 202.4 MB in the beginning and 262.7 MB in the end (delta: 60.3 MB). Free memory was 128.2 MB in the beginning and 135.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4742.85 ms. Allocated memory was 262.7 MB in the beginning and 386.4 MB in the end (delta: 123.7 MB). Free memory was 135.9 MB in the beginning and 228.5 MB in the end (delta: -92.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 823]: 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 77 procedures, 941 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9956 SDtfs, 373 SDslu, 38505 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=828occurred 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, 2.31 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1052 ConstructedInterpolants, 0 QuantifiedInterpolants, 126000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 31/33 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...