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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:32:57,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:32:57,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:32:57,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:32:57,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:32:57,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:32:57,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:32:57,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:32:57,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:32:57,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:32:57,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:32:57,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:32:57,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:32:57,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:32:57,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:32:57,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:32:57,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:32:57,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:32:57,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:32:57,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:32:57,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:32:57,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:32:57,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:32:57,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:32:57,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:32:57,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:32:57,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:32:57,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:32:57,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:32:57,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:32:57,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:32:57,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:32:57,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:32:57,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:32:57,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:32:57,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:32:57,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:32:57,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:32:57,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:32:57,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:32:57,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:32:57,473 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 02:32:57,488 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:32:57,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:32:57,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:32:57,489 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:32:57,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:32:57,490 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:32:57,490 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:32:57,490 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:32:57,490 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:32:57,490 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:32:57,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:32:57,491 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:32:57,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:32:57,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:32:57,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:32:57,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:32:57,493 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:32:57,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:32:57,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:32:57,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:32:57,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:32:57,494 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:32:57,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:32:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:32:57,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:32:57,523 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:32:57,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:32:57,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:32:57,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:32:57,547 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:32:57,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c [2019-09-10 02:32:57,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644081f70/954a3fa4f29d44ef8135dc415e1e6d98/FLAGd8147140f [2019-09-10 02:32:58,181 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:32:58,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c [2019-09-10 02:32:58,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644081f70/954a3fa4f29d44ef8135dc415e1e6d98/FLAGd8147140f [2019-09-10 02:32:58,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644081f70/954a3fa4f29d44ef8135dc415e1e6d98 [2019-09-10 02:32:58,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:32:58,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:32:58,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:32:58,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:32:58,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:32:58,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:32:58" (1/1) ... [2019-09-10 02:32:58,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a792003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:58, skipping insertion in model container [2019-09-10 02:32:58,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:32:58" (1/1) ... [2019-09-10 02:32:58,423 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:32:58,510 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:32:59,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:32:59,202 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:32:59,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:32:59,398 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:32:59,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59 WrapperNode [2019-09-10 02:32:59,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:32:59,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:32:59,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:32:59,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:32:59,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (1/1) ... [2019-09-10 02:32:59,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:32:59,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:32:59,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:32:59,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:32:59,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (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 02:32:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:32:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:32:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:32:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:32:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:32:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:32:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:32:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:32:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:32:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:32:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:32:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:32:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:32:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:32:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:32:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:32:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:32:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:32:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:32:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:32:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:32:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:32:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:32:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:32:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:32:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:32:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:32:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:32:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:32:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:32:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:32:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:32:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:32:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:32:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:32:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:32:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:32:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:32:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:32:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:32:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:32:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:32:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:32:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:32:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:32:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:32:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:32:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:32:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:32:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:32:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:32:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:32:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:32:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:32:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:32:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:32:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:32:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:32:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:32:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:32:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:32:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:32:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:32:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:32:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:32:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:32:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:32:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:32:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:32:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:33:01,926 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:33:01,927 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:33:01,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:33:01 BoogieIcfgContainer [2019-09-10 02:33:01,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:33:01,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:33:01,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:33:01,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:33:01,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:32:58" (1/3) ... [2019-09-10 02:33:01,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3756ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:33:01, skipping insertion in model container [2019-09-10 02:33:01,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:32:59" (2/3) ... [2019-09-10 02:33:01,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3756ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:33:01, skipping insertion in model container [2019-09-10 02:33:01,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:33:01" (3/3) ... [2019-09-10 02:33:01,939 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product01.cil.c [2019-09-10 02:33:01,949 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:33:01,962 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:33:01,979 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:33:02,011 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:33:02,012 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:33:02,012 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:33:02,012 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:33:02,012 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:33:02,012 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:33:02,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:33:02,012 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:33:02,051 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states. [2019-09-10 02:33:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-09-10 02:33:02,085 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:02,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:02,090 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:02,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:02,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1682345477, now seen corresponding path program 1 times [2019-09-10 02:33:02,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:02,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:02,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:02,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:02,145 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:02,769 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 02:33:02,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:02,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:02,772 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:02,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:02,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:02,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:02,798 INFO L87 Difference]: Start difference. First operand 741 states. Second operand 7 states. [2019-09-10 02:33:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:03,108 INFO L93 Difference]: Finished difference Result 600 states and 965 transitions. [2019-09-10 02:33:03,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:03,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2019-09-10 02:33:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:03,144 INFO L225 Difference]: With dead ends: 600 [2019-09-10 02:33:03,145 INFO L226 Difference]: Without dead ends: 589 [2019-09-10 02:33:03,150 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 02:33:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2019-09-10 02:33:03,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2019-09-10 02:33:03,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-09-10 02:33:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 948 transitions. [2019-09-10 02:33:03,309 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 948 transitions. Word has length 115 [2019-09-10 02:33:03,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:03,310 INFO L475 AbstractCegarLoop]: Abstraction has 587 states and 948 transitions. [2019-09-10 02:33:03,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 948 transitions. [2019-09-10 02:33:03,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 02:33:03,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:03,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:03,327 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:03,329 INFO L82 PathProgramCache]: Analyzing trace with hash 492962916, now seen corresponding path program 1 times [2019-09-10 02:33:03,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:03,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:03,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:03,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:03,331 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:03,544 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 02:33:03,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:03,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:33:03,545 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:03,547 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:33:03,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:33:03,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:33:03,548 INFO L87 Difference]: Start difference. First operand 587 states and 948 transitions. Second operand 4 states. [2019-09-10 02:33:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:03,605 INFO L93 Difference]: Finished difference Result 585 states and 943 transitions. [2019-09-10 02:33:03,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:33:03,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-09-10 02:33:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:03,611 INFO L225 Difference]: With dead ends: 585 [2019-09-10 02:33:03,611 INFO L226 Difference]: Without dead ends: 569 [2019-09-10 02:33:03,612 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 02:33:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-09-10 02:33:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2019-09-10 02:33:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-09-10 02:33:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 915 transitions. [2019-09-10 02:33:03,634 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 915 transitions. Word has length 116 [2019-09-10 02:33:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:03,635 INFO L475 AbstractCegarLoop]: Abstraction has 569 states and 915 transitions. [2019-09-10 02:33:03,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:33:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 915 transitions. [2019-09-10 02:33:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 02:33:03,639 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:03,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:03,639 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:03,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1591926986, now seen corresponding path program 1 times [2019-09-10 02:33:03,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:03,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:03,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:03,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:03,641 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:03,815 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 02:33:03,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:03,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:03,859 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:03,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:03,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:03,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:03,862 INFO L87 Difference]: Start difference. First operand 569 states and 915 transitions. Second operand 7 states. [2019-09-10 02:33:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:03,972 INFO L93 Difference]: Finished difference Result 572 states and 918 transitions. [2019-09-10 02:33:03,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:03,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-09-10 02:33:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:03,978 INFO L225 Difference]: With dead ends: 572 [2019-09-10 02:33:03,978 INFO L226 Difference]: Without dead ends: 563 [2019-09-10 02:33:03,979 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 02:33:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-09-10 02:33:03,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2019-09-10 02:33:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-09-10 02:33:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 902 transitions. [2019-09-10 02:33:04,001 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 902 transitions. Word has length 116 [2019-09-10 02:33:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:04,001 INFO L475 AbstractCegarLoop]: Abstraction has 563 states and 902 transitions. [2019-09-10 02:33:04,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 902 transitions. [2019-09-10 02:33:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-09-10 02:33:04,005 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:04,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:04,006 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:04,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1250073911, now seen corresponding path program 1 times [2019-09-10 02:33:04,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:04,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:04,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:04,163 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 02:33:04,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:04,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:04,163 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:04,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:04,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:04,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:04,165 INFO L87 Difference]: Start difference. First operand 563 states and 902 transitions. Second operand 7 states. [2019-09-10 02:33:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:04,248 INFO L93 Difference]: Finished difference Result 566 states and 905 transitions. [2019-09-10 02:33:04,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:04,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2019-09-10 02:33:04,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:04,253 INFO L225 Difference]: With dead ends: 566 [2019-09-10 02:33:04,253 INFO L226 Difference]: Without dead ends: 557 [2019-09-10 02:33:04,254 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 02:33:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-09-10 02:33:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-09-10 02:33:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-09-10 02:33:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 889 transitions. [2019-09-10 02:33:04,274 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 889 transitions. Word has length 117 [2019-09-10 02:33:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:04,275 INFO L475 AbstractCegarLoop]: Abstraction has 557 states and 889 transitions. [2019-09-10 02:33:04,275 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 889 transitions. [2019-09-10 02:33:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-09-10 02:33:04,278 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:04,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:04,279 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 803183822, now seen corresponding path program 1 times [2019-09-10 02:33:04,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:04,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:04,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,281 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:04,435 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 02:33:04,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:04,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:04,436 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:04,437 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:04,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:04,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:04,437 INFO L87 Difference]: Start difference. First operand 557 states and 889 transitions. Second operand 7 states. [2019-09-10 02:33:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:04,522 INFO L93 Difference]: Finished difference Result 560 states and 892 transitions. [2019-09-10 02:33:04,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:04,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-09-10 02:33:04,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:04,536 INFO L225 Difference]: With dead ends: 560 [2019-09-10 02:33:04,536 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:04,537 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 02:33:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 876 transitions. [2019-09-10 02:33:04,557 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 876 transitions. Word has length 118 [2019-09-10 02:33:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:04,558 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 876 transitions. [2019-09-10 02:33:04,558 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 876 transitions. [2019-09-10 02:33:04,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-09-10 02:33:04,564 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:04,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:04,565 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:04,565 INFO L82 PathProgramCache]: Analyzing trace with hash -377403377, now seen corresponding path program 1 times [2019-09-10 02:33:04,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:04,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:04,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:04,797 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 02:33:04,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:04,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:04,798 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:04,798 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:04,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:04,799 INFO L87 Difference]: Start difference. First operand 551 states and 876 transitions. Second operand 7 states. [2019-09-10 02:33:04,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:04,868 INFO L93 Difference]: Finished difference Result 554 states and 879 transitions. [2019-09-10 02:33:04,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:04,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-09-10 02:33:04,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:04,877 INFO L225 Difference]: With dead ends: 554 [2019-09-10 02:33:04,877 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:04,878 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 02:33:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 875 transitions. [2019-09-10 02:33:04,902 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 875 transitions. Word has length 118 [2019-09-10 02:33:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:04,906 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 875 transitions. [2019-09-10 02:33:04,907 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 875 transitions. [2019-09-10 02:33:04,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-09-10 02:33:04,910 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:04,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:04,911 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:04,911 INFO L82 PathProgramCache]: Analyzing trace with hash -9363571, now seen corresponding path program 1 times [2019-09-10 02:33:04,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:04,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:04,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:04,915 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:05,058 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 02:33:05,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:05,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:05,058 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:05,059 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:05,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:05,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:05,060 INFO L87 Difference]: Start difference. First operand 551 states and 875 transitions. Second operand 5 states. [2019-09-10 02:33:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:05,129 INFO L93 Difference]: Finished difference Result 553 states and 876 transitions. [2019-09-10 02:33:05,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:05,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2019-09-10 02:33:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:05,134 INFO L225 Difference]: With dead ends: 553 [2019-09-10 02:33:05,134 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:05,135 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 02:33:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 874 transitions. [2019-09-10 02:33:05,154 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 874 transitions. Word has length 119 [2019-09-10 02:33:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:05,155 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 874 transitions. [2019-09-10 02:33:05,155 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 874 transitions. [2019-09-10 02:33:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-09-10 02:33:05,159 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:05,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:05,159 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:05,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1274402062, now seen corresponding path program 1 times [2019-09-10 02:33:05,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:05,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:05,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,161 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:05,287 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 02:33:05,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:05,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:05,287 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:05,288 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:05,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:05,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:05,289 INFO L87 Difference]: Start difference. First operand 551 states and 874 transitions. Second operand 5 states. [2019-09-10 02:33:05,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:05,350 INFO L93 Difference]: Finished difference Result 553 states and 875 transitions. [2019-09-10 02:33:05,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:05,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2019-09-10 02:33:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:05,355 INFO L225 Difference]: With dead ends: 553 [2019-09-10 02:33:05,356 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:05,356 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 02:33:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 873 transitions. [2019-09-10 02:33:05,376 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 873 transitions. Word has length 120 [2019-09-10 02:33:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:05,377 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 873 transitions. [2019-09-10 02:33:05,377 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 873 transitions. [2019-09-10 02:33:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-09-10 02:33:05,380 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:05,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:05,381 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:05,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:05,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1402359096, now seen corresponding path program 1 times [2019-09-10 02:33:05,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:05,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:05,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,382 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:05,542 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 02:33:05,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:05,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:05,543 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:05,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:05,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:05,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:05,546 INFO L87 Difference]: Start difference. First operand 551 states and 873 transitions. Second operand 5 states. [2019-09-10 02:33:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:05,604 INFO L93 Difference]: Finished difference Result 553 states and 874 transitions. [2019-09-10 02:33:05,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:05,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2019-09-10 02:33:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:05,609 INFO L225 Difference]: With dead ends: 553 [2019-09-10 02:33:05,609 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:05,610 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 02:33:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:05,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 872 transitions. [2019-09-10 02:33:05,630 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 872 transitions. Word has length 121 [2019-09-10 02:33:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:05,630 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 872 transitions. [2019-09-10 02:33:05,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 872 transitions. [2019-09-10 02:33:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-09-10 02:33:05,633 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:05,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:33:05,634 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:05,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1993568105, now seen corresponding path program 1 times [2019-09-10 02:33:05,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:05,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:05,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:05,753 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 02:33:05,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:05,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:05,754 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:05,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:05,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:05,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:05,755 INFO L87 Difference]: Start difference. First operand 551 states and 872 transitions. Second operand 5 states. [2019-09-10 02:33:05,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:05,816 INFO L93 Difference]: Finished difference Result 553 states and 873 transitions. [2019-09-10 02:33:05,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:05,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2019-09-10 02:33:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:05,821 INFO L225 Difference]: With dead ends: 553 [2019-09-10 02:33:05,822 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:33:05,822 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 02:33:05,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:33:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2019-09-10 02:33:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-09-10 02:33:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 871 transitions. [2019-09-10 02:33:05,862 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 871 transitions. Word has length 122 [2019-09-10 02:33:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:05,863 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 871 transitions. [2019-09-10 02:33:05,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 871 transitions. [2019-09-10 02:33:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-10 02:33:05,868 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:05,869 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, 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 02:33:05,869 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:05,870 INFO L82 PathProgramCache]: Analyzing trace with hash 369306115, now seen corresponding path program 1 times [2019-09-10 02:33:05,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:05,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:05,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:05,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:06,157 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 02:33:06,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:06,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:33:06,158 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:06,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:33:06,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:33:06,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:33:06,161 INFO L87 Difference]: Start difference. First operand 551 states and 871 transitions. Second operand 8 states. [2019-09-10 02:33:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:09,105 INFO L93 Difference]: Finished difference Result 1474 states and 2329 transitions. [2019-09-10 02:33:09,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 02:33:09,106 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2019-09-10 02:33:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:09,120 INFO L225 Difference]: With dead ends: 1474 [2019-09-10 02:33:09,120 INFO L226 Difference]: Without dead ends: 1474 [2019-09-10 02:33:09,121 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:33:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-09-10 02:33:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1462. [2019-09-10 02:33:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2019-09-10 02:33:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2316 transitions. [2019-09-10 02:33:09,176 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2316 transitions. Word has length 123 [2019-09-10 02:33:09,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:09,176 INFO L475 AbstractCegarLoop]: Abstraction has 1462 states and 2316 transitions. [2019-09-10 02:33:09,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:33:09,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2316 transitions. [2019-09-10 02:33:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-09-10 02:33:09,180 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:09,180 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, 1, 1, 1, 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 02:33:09,180 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:09,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:09,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1777046166, now seen corresponding path program 1 times [2019-09-10 02:33:09,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:09,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:09,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:09,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:09,182 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:09,398 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 02:33:09,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:33:09,399 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:33:09,400 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2019-09-10 02:33:09,403 INFO L207 CegarAbsIntRunner]: [60], [61], [62], [63], [140], [144], [147], [407], [408], [411], [413], [416], [737], [753], [755], [757], [833], [836], [933], [936], [941], [944], [1010], [1013], [1014], [1015], [1082], [1083], [1084], [1086], [1115], [1117], [1120], [1128], [1129], [1165], [1201], [1237], [1273], [1276], [1279], [1312], [1313], [1314], [1365], [1370], [1375], [1380], [1385], [1388], [1392], [1577], [1580], [1602], [1618], [1631], [1636], [1640], [1644], [1742], [1743], [1805], [1808], [1810], [1813], [1891], [1893], [1895], [1898], [1911], [1925], [1939], [1953], [1967], [2041], [2219], [2311], [2314], [2332], [2468], [2469], [2470], [2471], [2472], [2473], [2474], [2475], [2476], [2506], [2507], [2528], [2529], [2530], [2531], [2532], [2533], [2534], [2535], [2536], [2564], [2565], [2566], [2567], [2596], [2597], [2598], [2599], [2610], [2628], [2629], [2630], [2631], [2634], [2635], [2636], [2642], [2672], [2673], [2674], [2690], [2691], [2692], [2693], [2724], [2725], [2726] [2019-09-10 02:33:09,457 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:33:09,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:33:09,585 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:33:09,587 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 167 root evaluator evaluations with a maximum evaluation depth of 0. Performed 167 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 250 variables. [2019-09-10 02:33:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:09,593 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:33:09,656 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:33:09,657 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:33:09,661 INFO L420 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2019-09-10 02:33:09,662 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:33:09,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:33:09,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:33:09,663 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:09,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:33:09,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:33:09,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:33:09,665 INFO L87 Difference]: Start difference. First operand 1462 states and 2316 transitions. Second operand 2 states. [2019-09-10 02:33:09,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:09,665 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:33:09,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:33:09,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 128 [2019-09-10 02:33:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:09,666 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:33:09,666 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:33:09,667 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 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 02:33:09,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:33:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:33:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:33:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:33:09,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2019-09-10 02:33:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:09,668 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:33:09,669 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:33:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:33:09,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:33:09,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:33:09 BoogieIcfgContainer [2019-09-10 02:33:09,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:33:09,679 INFO L168 Benchmark]: Toolchain (without parser) took 11271.41 ms. Allocated memory was 135.3 MB in the beginning and 446.2 MB in the end (delta: 310.9 MB). Free memory was 88.6 MB in the beginning and 310.1 MB in the end (delta: -221.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:09,679 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:33:09,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 992.15 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 142.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:09,681 INFO L168 Benchmark]: Boogie Preprocessor took 208.57 ms. Allocated memory is still 202.4 MB. Free memory was 142.1 MB in the beginning and 132.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:09,682 INFO L168 Benchmark]: RCFGBuilder took 2320.41 ms. Allocated memory was 202.4 MB in the beginning and 260.0 MB in the end (delta: 57.7 MB). Free memory was 132.5 MB in the beginning and 150.1 MB in the end (delta: -17.6 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:09,683 INFO L168 Benchmark]: TraceAbstraction took 7746.07 ms. Allocated memory was 260.0 MB in the beginning and 446.2 MB in the end (delta: 186.1 MB). Free memory was 150.1 MB in the beginning and 310.1 MB in the end (delta: -159.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:09,687 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 135.3 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 992.15 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 142.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 208.57 ms. Allocated memory is still 202.4 MB. Free memory was 142.1 MB in the beginning and 132.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2320.41 ms. Allocated memory was 202.4 MB in the beginning and 260.0 MB in the end (delta: 57.7 MB). Free memory was 132.5 MB in the beginning and 150.1 MB in the end (delta: -17.6 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7746.07 ms. Allocated memory was 260.0 MB in the beginning and 446.2 MB in the end (delta: 186.1 MB). Free memory was 150.1 MB in the beginning and 310.1 MB in the end (delta: -159.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1888]: 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 70 procedures, 883 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10455 SDtfs, 2022 SDslu, 39151 SDs, 0 SdLazy, 2788 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1462occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.1811023622047245 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1433 NumberOfCodeBlocks, 1433 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1421 ConstructedInterpolants, 0 QuantifiedInterpolants, 209542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 34/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...