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_spec2_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:20:35,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:20:35,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:20:35,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:20:35,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:20:35,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:20:35,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:20:35,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:20:35,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:20:35,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:20:35,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:20:35,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:20:35,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:20:35,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:20:35,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:20:35,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:20:35,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:20:35,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:20:35,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:20:35,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:20:35,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:20:35,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:20:35,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:20:35,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:20:35,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:20:35,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:20:35,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:20:35,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:20:35,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:20:35,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:20:35,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:20:35,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:20:35,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:20:35,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:20:35,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:20:35,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:20:35,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:20:35,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:20:35,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:20:35,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:20:35,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:20:35,230 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 23:20:35,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:20:35,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:20:35,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:20:35,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:20:35,259 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:20:35,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:20:35,260 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:20:35,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:20:35,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:20:35,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:20:35,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:20:35,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:20:35,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:20:35,262 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:20:35,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:20:35,263 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:20:35,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:20:35,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:20:35,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:20:35,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:20:35,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:20:35,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:20:35,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:20:35,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:20:35,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:20:35,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:20:35,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:20:35,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:20:35,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:20:35,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:20:35,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:20:35,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:20:35,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:20:35,610 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:20:35,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product09.cil.c [2019-10-14 23:20:35,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8e0f8cc/2ed61e35d0734a0883d7b56571afbe38/FLAG2cd51a075 [2019-10-14 23:20:36,380 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:20:36,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product09.cil.c [2019-10-14 23:20:36,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8e0f8cc/2ed61e35d0734a0883d7b56571afbe38/FLAG2cd51a075 [2019-10-14 23:20:36,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e8e0f8cc/2ed61e35d0734a0883d7b56571afbe38 [2019-10-14 23:20:36,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:20:36,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:20:36,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:20:36,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:20:36,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:20:36,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:36" (1/1) ... [2019-10-14 23:20:36,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74752006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:36, skipping insertion in model container [2019-10-14 23:20:36,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:36" (1/1) ... [2019-10-14 23:20:36,573 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:20:36,647 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:20:37,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:20:37,427 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:20:37,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:20:37,663 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:20:37,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37 WrapperNode [2019-10-14 23:20:37,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:20:37,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:20:37,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:20:37,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:20:37,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... [2019-10-14 23:20:37,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:20:37,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:20:37,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:20:37,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:20:37,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:20:37,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:20:37,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:20:37,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:20:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:20:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:20:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:20:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:20:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:20:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:20:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:20:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:20:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:20:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:20:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:20:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:20:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:20:37,924 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:20:37,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:20:37,924 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:20:37,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:20:37,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:20:37,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:20:37,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:20:37,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:20:37,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:20:37,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-14 23:20:37,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-14 23:20:37,926 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:20:37,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:20:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:20:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:20:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:20:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:20:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:20:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:20:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:20:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:20:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:20:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:20:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:20:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:20:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:20:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:20:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:20:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:20:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:20:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:20:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:20:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:20:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:20:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:20:37,933 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:20:37,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:20:37,933 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:20:37,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:20:37,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:20:37,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:20:37,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:20:37,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:20:37,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:20:37,934 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:20:37,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:20:37,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:20:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:20:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:20:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:20:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:20:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:20:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:20:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:20:37,937 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:20:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:20:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:20:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:20:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:20:37,938 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:20:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:20:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:20:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:20:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:20:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:20:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:20:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:20:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:20:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-14 23:20:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:20:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:20:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:20:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:20:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:20:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:20:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:20:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-14 23:20:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:20:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:20:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:20:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:20:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:20:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:20:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:20:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:20:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:20:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:20:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:20:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:20:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:20:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:20:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:20:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:20:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:20:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:20:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:20:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:20:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:20:37,956 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:20:37,959 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:20:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:20:37,960 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:20:37,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:20:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:20:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:20:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:20:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:20:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:20:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:20:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:20:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:20:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:20:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:20:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:20:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:20:40,350 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:20:40,350 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:20:40,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:40 BoogieIcfgContainer [2019-10-14 23:20:40,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:20:40,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:20:40,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:20:40,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:20:40,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:20:36" (1/3) ... [2019-10-14 23:20:40,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b4662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:40, skipping insertion in model container [2019-10-14 23:20:40,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:37" (2/3) ... [2019-10-14 23:20:40,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b4662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:40, skipping insertion in model container [2019-10-14 23:20:40,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:40" (3/3) ... [2019-10-14 23:20:40,361 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.c [2019-10-14 23:20:40,371 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:20:40,380 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:20:40,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:20:40,431 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:20:40,431 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:20:40,431 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:20:40,432 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:20:40,432 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:20:40,432 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:20:40,432 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:20:40,432 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:20:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states. [2019-10-14 23:20:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-14 23:20:40,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:40,505 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:20:40,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash -943810912, now seen corresponding path program 1 times [2019-10-14 23:20:40,520 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:40,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256571292] [2019-10-14 23:20:40,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:40,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:40,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,072 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,426 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:20:42,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256571292] [2019-10-14 23:20:42,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:20:42,886 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:20:42,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790161012] [2019-10-14 23:20:42,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:20:42,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:42,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:20:42,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:20:42,909 INFO L87 Difference]: Start difference. First operand 737 states. Second operand 10 states. [2019-10-14 23:20:44,879 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-14 23:20:45,715 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2019-10-14 23:20:47,551 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 23:20:48,757 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:21:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:21:12,570 INFO L93 Difference]: Finished difference Result 1694 states and 3061 transitions. [2019-10-14 23:21:12,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:21:12,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 107 [2019-10-14 23:21:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:21:12,614 INFO L225 Difference]: With dead ends: 1694 [2019-10-14 23:21:12,614 INFO L226 Difference]: Without dead ends: 1106 [2019-10-14 23:21:12,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:21:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2019-10-14 23:21:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 577. [2019-10-14 23:21:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-14 23:21:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 932 transitions. [2019-10-14 23:21:12,965 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 932 transitions. Word has length 107 [2019-10-14 23:21:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:21:12,966 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 932 transitions. [2019-10-14 23:21:12,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:21:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 932 transitions. [2019-10-14 23:21:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-14 23:21:12,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:21:12,977 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:21:12,978 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:21:12,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:21:12,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1793356700, now seen corresponding path program 1 times [2019-10-14 23:21:12,979 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:21:12,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126587595] [2019-10-14 23:21:12,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:21:12,980 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:21:12,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:21:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:13,952 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:21:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,213 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:21:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:21:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:21:14,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126587595] [2019-10-14 23:21:14,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:21:14,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:21:14,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097355887] [2019-10-14 23:21:14,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:21:14,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:21:14,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:21:14,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:21:14,641 INFO L87 Difference]: Start difference. First operand 577 states and 932 transitions. Second operand 13 states. [2019-10-14 23:21:16,052 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 23:21:17,003 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 385