java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:21:55,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:21:55,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:21:55,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:21:55,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:21:55,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:21:55,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:21:55,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:21:55,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:21:55,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:21:55,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:21:55,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:21:55,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:21:55,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:21:55,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:21:55,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:21:55,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:21:55,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:21:55,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:21:55,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:21:55,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:21:55,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:21:55,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:21:55,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:21:55,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:21:55,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:21:55,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:21:55,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:21:55,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:21:55,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:21:55,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:21:55,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:21:55,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:21:55,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:21:55,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:21:55,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:21:55,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:21:55,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:21:55,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:21:55,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:21:55,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:21:55,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:21:55,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:21:55,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:21:55,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:21:55,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:21:55,607 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:21:55,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:21:55,608 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:21:55,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:21:55,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:21:55,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:21:55,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:21:55,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:21:55,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:21:55,609 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:21:55,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:21:55,610 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:21:55,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:21:55,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:21:55,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:21:55,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:21:55,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:21:55,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:21:55,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:21:55,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:21:55,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:21:55,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:21:55,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:21:55,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:21:55,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:21:55,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:21:55,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:21:55,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:21:55,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:21:55,912 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:21:55,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-14 23:21:55,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc65c0/bcd15d66d28346759bd39e46fd497786/FLAGbffc73790 [2019-10-14 23:21:56,599 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:21:56,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-14 23:21:56,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc65c0/bcd15d66d28346759bd39e46fd497786/FLAGbffc73790 [2019-10-14 23:21:56,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc65c0/bcd15d66d28346759bd39e46fd497786 [2019-10-14 23:21:56,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:21:56,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:21:56,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:21:56,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:21:56,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:21:56,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:21:56" (1/1) ... [2019-10-14 23:21:56,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ae5ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:56, skipping insertion in model container [2019-10-14 23:21:56,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:21:56" (1/1) ... [2019-10-14 23:21:56,838 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:21:56,920 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:21:57,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:21:57,635 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:21:57,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:21:57,810 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:21:57,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57 WrapperNode [2019-10-14 23:21:57,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:21:57,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:21:57,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:21:57,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:21:57,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:57,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:57,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:57,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:57,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:57,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:58,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... [2019-10-14 23:21:58,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:21:58,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:21:58,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:21:58,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:21:58,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:21:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:21:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:21:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:21:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:21:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:21:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:21:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:21:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:21:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:21:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:21:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:21:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:21:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:21:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:21:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:21:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:21:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:21:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:21:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:21:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:21:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:21:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:21:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:21:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:21:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:21:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:21:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:21:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:21:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:21:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:21:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:21:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:21:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:21:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:21:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:21:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:21:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:21:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:21:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:21:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:21:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:21:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:21:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-14 23:21:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:21:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:21:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:21:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:21:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:21:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:21:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:21:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:21:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:21:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:21:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:21:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:21:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:21:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-14 23:21:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:21:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-14 23:21:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:21:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:21:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:21:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:21:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:21:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:21:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-14 23:21:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:21:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:21:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:21:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:21:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:21:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:21:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:21:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:21:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:21:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:21:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:21:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:21:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:21:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:21:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:21:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:21:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:21:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:21:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:21:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:21:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:21:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:21:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:21:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:21:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:21:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:21:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:21:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:21:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:21:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:21:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:21:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:21:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:21:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:21:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:21:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:21:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:21:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:21:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:21:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:21:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:21:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:21:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:21:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:21:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:21:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:21:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:21:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:21:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:21:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:21:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:21:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:21:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:21:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:21:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:21:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-14 23:21:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:21:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:21:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:21:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:21:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:21:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:21:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:21:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:21:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:21:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-14 23:21:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:21:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:21:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:21:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:21:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:21:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:22:00,232 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:22:00,232 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:22:00,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:22:00 BoogieIcfgContainer [2019-10-14 23:22:00,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:22:00,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:22:00,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:22:00,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:22:00,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:21:56" (1/3) ... [2019-10-14 23:22:00,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914bbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:22:00, skipping insertion in model container [2019-10-14 23:22:00,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:21:57" (2/3) ... [2019-10-14 23:22:00,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914bbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:22:00, skipping insertion in model container [2019-10-14 23:22:00,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:22:00" (3/3) ... [2019-10-14 23:22:00,243 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2019-10-14 23:22:00,252 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:22:00,262 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:22:00,273 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:22:00,310 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:22:00,310 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:22:00,310 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:22:00,310 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:22:00,311 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:22:00,311 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:22:00,311 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:22:00,311 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:22:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states. [2019-10-14 23:22:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:22:00,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:22:00,368 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:22:00,370 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:22:00,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:22:00,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1366421017, now seen corresponding path program 1 times [2019-10-14 23:22:00,383 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:22:00,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114483352] [2019-10-14 23:22:00,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:22:00,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:22:00,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:22:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:01,883 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-14 23:22:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,093 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-14 23:22:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:22:02,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114483352] [2019-10-14 23:22:02,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:22:02,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:22:02,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218673412] [2019-10-14 23:22:02,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:22:02,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:22:02,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:22:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:22:02,583 INFO L87 Difference]: Start difference. First operand 781 states. Second operand 12 states. [2019-10-14 23:22:04,861 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:22:05,769 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:22:06,600 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:22:07,537 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:22:08,437 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-10-14 23:22:11,388 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-14 23:22:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:22:31,005 INFO L93 Difference]: Finished difference Result 1565 states and 2725 transitions. [2019-10-14 23:22:31,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-14 23:22:31,007 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2019-10-14 23:22:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:22:31,040 INFO L225 Difference]: With dead ends: 1565 [2019-10-14 23:22:31,040 INFO L226 Difference]: Without dead ends: 951 [2019-10-14 23:22:31,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:22:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2019-10-14 23:22:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 620. [2019-10-14 23:22:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-14 23:22:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 991 transitions. [2019-10-14 23:22:31,336 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 991 transitions. Word has length 93 [2019-10-14 23:22:31,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:22:31,336 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 991 transitions. [2019-10-14 23:22:31,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:22:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 991 transitions. [2019-10-14 23:22:31,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:22:31,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:22:31,343 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:22:31,344 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:22:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:22:31,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1643390832, now seen corresponding path program 1 times [2019-10-14 23:22:31,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:22:31,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308740095] [2019-10-14 23:22:31,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:22:31,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:22:31,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:22:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,292 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-14 23:22:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,481 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-14 23:22:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:22:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:22:32,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308740095] [2019-10-14 23:22:32,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:22:32,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:22:32,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330416015] [2019-10-14 23:22:32,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:22:32,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:22:32,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:22:32,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:22:32,784 INFO L87 Difference]: Start difference. First operand 620 states and 991 transitions. Second operand 9 states. [2019-10-14 23:22:34,232 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:22:35,020 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-14 23:22:37,066 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 148