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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:22:48,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:22:48,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:22:48,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:22:48,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:22:48,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:22:48,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:22:48,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:22:48,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:22:48,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:22:48,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:22:48,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:22:48,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:22:48,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:22:48,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:22:48,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:22:48,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:22:48,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:22:48,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:22:48,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:22:48,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:22:48,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:22:48,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:22:48,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:22:48,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:22:48,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:22:48,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:22:48,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:22:48,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:22:48,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:22:48,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:22:48,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:22:48,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:22:48,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:22:48,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:22:48,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:22:48,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:22:48,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:22:48,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:22:48,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:22:48,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:22:48,676 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 [2019-10-13 19:22:48,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:22:48,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:22:48,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:22:48,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:22:48,704 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:22:48,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:22:48,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:22:48,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:22:48,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:22:48,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:22:48,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:22:48,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:22:48,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:22:48,706 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:22:48,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:22:48,706 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:22:48,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:22:48,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:22:48,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:22:48,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:22:48,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:22:48,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:22:48,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:22:48,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:22:48,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:22:48,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:22:48,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:22:48,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:22:48,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:22:48,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:22:49,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:22:49,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:22:49,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:22:49,013 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:22:49,014 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2019-10-13 19:22:49,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a93666b/9fb14ee7049d4037ac9896b809176a84/FLAG06afd4f36 [2019-10-13 19:22:49,703 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:22:49,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2019-10-13 19:22:49,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a93666b/9fb14ee7049d4037ac9896b809176a84/FLAG06afd4f36 [2019-10-13 19:22:49,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a93666b/9fb14ee7049d4037ac9896b809176a84 [2019-10-13 19:22:49,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:22:49,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:22:49,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:22:49,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:22:49,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:22:49,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:49" (1/1) ... [2019-10-13 19:22:49,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5cac2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:49, skipping insertion in model container [2019-10-13 19:22:49,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:49" (1/1) ... [2019-10-13 19:22:49,949 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:22:50,027 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:22:50,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:22:50,790 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:22:50,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:22:51,045 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:22:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51 WrapperNode [2019-10-13 19:22:51,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:22:51,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:22:51,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:22:51,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:22:51,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (1/1) ... [2019-10-13 19:22:51,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:22:51,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:22:51,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:22:51,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:22:51,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (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 [2019-10-13 19:22:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:22:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:22:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:22:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:22:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:22:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:22:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:22:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:22:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:22:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:22:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:22:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:22:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:22:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:22:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:22:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:22:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:22:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:22:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:22:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:22:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:22:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:22:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:22:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:22:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:22:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:22:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:22:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:22:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:22:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:22:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:22:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:22:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:22:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:22:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:22:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:22:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:22:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:22:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:22:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:22:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:22:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:22:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:22:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:22:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:22:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:22:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:22:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:22:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:22:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:22:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:22:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:22:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:22:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:22:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:22:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:22:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:22:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:22:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:22:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:22:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:22:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:22:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:22:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:22:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:22:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:22:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:22:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:22:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:22:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:22:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:22:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:22:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:22:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:22:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:22:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:22:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:22:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:22:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:22:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:22:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:22:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:22:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:22:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:22:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:22:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:22:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:22:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:22:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:22:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:22:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:22:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:22:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:22:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:22:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:22:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:22:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:22:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:22:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:22:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:22:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:22:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:22:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:22:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:22:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:22:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:22:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:22:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:22:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:22:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:22:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:22:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:22:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:22:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:22:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:22:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:22:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:22:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:22:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:22:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:22:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:22:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:22:53,759 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:22:53,759 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:22:53,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:53 BoogieIcfgContainer [2019-10-13 19:22:53,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:22:53,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:22:53,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:22:53,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:22:53,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:22:49" (1/3) ... [2019-10-13 19:22:53,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743819c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:53, skipping insertion in model container [2019-10-13 19:22:53,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:51" (2/3) ... [2019-10-13 19:22:53,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5743819c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:53, skipping insertion in model container [2019-10-13 19:22:53,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:53" (3/3) ... [2019-10-13 19:22:53,773 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product09.cil.c [2019-10-13 19:22:53,783 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:22:53,794 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:22:53,807 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:22:53,846 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:22:53,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:22:53,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:22:53,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:22:53,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:22:53,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:22:53,847 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:22:53,847 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:22:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states. [2019-10-13 19:22:53,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 19:22:53,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:22:53,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:22:53,905 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:22:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:22:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1161933342, now seen corresponding path program 1 times [2019-10-13 19:22:53,922 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:22:53,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832481623] [2019-10-13 19:22:53,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:53,923 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:53,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:22:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,473 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-13 19:22:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,724 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:22:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:22:56,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832481623] [2019-10-13 19:22:56,213 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:22:56,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:22:56,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692594970] [2019-10-13 19:22:56,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:22:56,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:22:56,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:22:56,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:22:56,237 INFO L87 Difference]: Start difference. First operand 757 states. Second operand 13 states. [2019-10-13 19:22:58,300 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:22:59,209 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:23:00,022 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:23:00,917 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:23:01,734 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2019-10-13 19:23:05,783 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-13 19:23:08,596 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-13 19:23:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:23:20,427 INFO L93 Difference]: Finished difference Result 1519 states and 2686 transitions. [2019-10-13 19:23:20,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 19:23:20,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2019-10-13 19:23:20,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:23:20,464 INFO L225 Difference]: With dead ends: 1519 [2019-10-13 19:23:20,464 INFO L226 Difference]: Without dead ends: 916 [2019-10-13 19:23:20,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2019-10-13 19:23:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2019-10-13 19:23:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 603. [2019-10-13 19:23:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-13 19:23:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 971 transitions. [2019-10-13 19:23:20,737 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 971 transitions. Word has length 115 [2019-10-13 19:23:20,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:23:20,738 INFO L462 AbstractCegarLoop]: Abstraction has 603 states and 971 transitions. [2019-10-13 19:23:20,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:23:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 971 transitions. [2019-10-13 19:23:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-13 19:23:20,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:23:20,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:23:20,746 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:23:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:23:20,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1514671527, now seen corresponding path program 1 times [2019-10-13 19:23:20,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:23:20,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604591104] [2019-10-13 19:23:20,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:20,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:20,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:23:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,598 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-13 19:23:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,804 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:23:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:23:22,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604591104] [2019-10-13 19:23:22,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:23:22,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:23:22,151 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947756910] [2019-10-13 19:23:22,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:23:22,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:23:22,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:23:22,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:23:22,168 INFO L87 Difference]: Start difference. First operand 603 states and 971 transitions. Second operand 10 states. [2019-10-13 19:23:23,184 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-13 19:23:24,000 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:23:24,747 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-13 19:23:27,625 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-13 19:23:29,611 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 112