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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:22:59,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:22:59,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:22:59,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:22:59,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:22:59,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:22:59,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:22:59,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:22:59,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:22:59,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:22:59,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:22:59,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:22:59,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:22:59,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:22:59,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:22:59,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:22:59,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:22:59,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:22:59,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:22:59,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:22:59,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:22:59,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:22:59,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:22:59,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:22:59,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:22:59,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:22:59,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:22:59,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:22:59,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:22:59,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:22:59,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:22:59,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:22:59,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:22:59,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:22:59,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:22:59,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:22:59,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:22:59,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:22:59,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:22:59,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:22:59,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:22:59,764 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 21:22:59,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:22:59,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:22:59,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:22:59,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:22:59,792 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:22:59,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:22:59,792 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:22:59,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:22:59,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:22:59,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:22:59,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:22:59,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:22:59,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:22:59,795 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:22:59,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:22:59,795 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:22:59,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:22:59,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:22:59,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:22:59,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:22:59,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:22:59,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:22:59,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:22:59,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:22:59,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:22:59,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:22:59,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:22:59,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:22:59,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:23:00,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:23:00,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:23:00,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:23:00,104 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:23:00,105 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:23:00,105 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-13 21:23:00,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347fe7077/33c1c5d8d7464f06b14c118b5acdb43c/FLAGa6f87df15 [2019-10-13 21:23:00,656 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:23:00,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-13 21:23:00,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347fe7077/33c1c5d8d7464f06b14c118b5acdb43c/FLAGa6f87df15 [2019-10-13 21:23:00,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347fe7077/33c1c5d8d7464f06b14c118b5acdb43c [2019-10-13 21:23:00,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:23:00,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:23:00,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:23:00,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:23:00,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:23:00,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:23:00" (1/1) ... [2019-10-13 21:23:00,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530aa3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:00, skipping insertion in model container [2019-10-13 21:23:00,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:23:00" (1/1) ... [2019-10-13 21:23:00,991 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:23:01,034 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:23:01,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:23:01,492 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:23:01,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:23:01,614 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:23:01,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01 WrapperNode [2019-10-13 21:23:01,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:23:01,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:23:01,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:23:01,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:23:01,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (1/1) ... [2019-10-13 21:23:01,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:23:01,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:23:01,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:23:01,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:23:01,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (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 21:23:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:23:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:23:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:23:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:23:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:23:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:23:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:23:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:23:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:23:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:23:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:23:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:23:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:23:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:23:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:23:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:23:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:23:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:23:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:23:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:23:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:23:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:23:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:23:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:23:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:23:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:23:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:23:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:23:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:23:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:23:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:23:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:23:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:23:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:23:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:23:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:23:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:23:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:23:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:23:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 21:23:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:23:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:23:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:23:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:23:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:23:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:23:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:23:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:23:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:23:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:23:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:23:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:23:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:23:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:23:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:23:02,918 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:23:02,918 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:23:02,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:23:02 BoogieIcfgContainer [2019-10-13 21:23:02,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:23:02,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:23:02,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:23:02,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:23:02,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:23:00" (1/3) ... [2019-10-13 21:23:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1f4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:23:02, skipping insertion in model container [2019-10-13 21:23:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:01" (2/3) ... [2019-10-13 21:23:02,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1f4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:23:02, skipping insertion in model container [2019-10-13 21:23:02,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:23:02" (3/3) ... [2019-10-13 21:23:02,928 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-10-13 21:23:02,937 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:23:02,948 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:23:02,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:23:02,986 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:23:02,986 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:23:02,986 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:23:02,986 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:23:02,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:23:02,987 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:23:02,987 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:23:02,987 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:23:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-10-13 21:23:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 21:23:03,020 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:03,022 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] [2019-10-13 21:23:03,024 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:03,029 INFO L82 PathProgramCache]: Analyzing trace with hash -748532366, now seen corresponding path program 1 times [2019-10-13 21:23:03,039 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:03,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523462701] [2019-10-13 21:23:03,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,404 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 21:23:03,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523462701] [2019-10-13 21:23:03,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:03,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:23:03,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133898798] [2019-10-13 21:23:03,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:23:03,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:03,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:23:03,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:03,431 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 2 states. [2019-10-13 21:23:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:03,478 INFO L93 Difference]: Finished difference Result 322 states and 399 transitions. [2019-10-13 21:23:03,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:23:03,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-13 21:23:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:03,495 INFO L225 Difference]: With dead ends: 322 [2019-10-13 21:23:03,495 INFO L226 Difference]: Without dead ends: 163 [2019-10-13 21:23:03,500 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-10-13 21:23:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-10-13 21:23:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-13 21:23:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2019-10-13 21:23:03,557 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 59 [2019-10-13 21:23:03,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:03,557 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2019-10-13 21:23:03,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:23:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2019-10-13 21:23:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 21:23:03,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:03,565 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] [2019-10-13 21:23:03,566 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:03,566 INFO L82 PathProgramCache]: Analyzing trace with hash -637468051, now seen corresponding path program 1 times [2019-10-13 21:23:03,566 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:03,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096936844] [2019-10-13 21:23:03,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,674 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 21:23:03,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096936844] [2019-10-13 21:23:03,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:03,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:23:03,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161140449] [2019-10-13 21:23:03,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:23:03,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:03,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:23:03,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:23:03,679 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 3 states. [2019-10-13 21:23:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:03,744 INFO L93 Difference]: Finished difference Result 271 states and 321 transitions. [2019-10-13 21:23:03,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:23:03,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-13 21:23:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:03,752 INFO L225 Difference]: With dead ends: 271 [2019-10-13 21:23:03,755 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 21:23:03,757 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:23:03,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 21:23:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-13 21:23:03,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-13 21:23:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 181 transitions. [2019-10-13 21:23:03,787 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 181 transitions. Word has length 60 [2019-10-13 21:23:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:03,788 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 181 transitions. [2019-10-13 21:23:03,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:23:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 181 transitions. [2019-10-13 21:23:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 21:23:03,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:03,794 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] [2019-10-13 21:23:03,796 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:03,797 INFO L82 PathProgramCache]: Analyzing trace with hash -733015768, now seen corresponding path program 1 times [2019-10-13 21:23:03,797 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:03,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429149899] [2019-10-13 21:23:03,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,971 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 21:23:03,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429149899] [2019-10-13 21:23:03,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:03,972 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:23:03,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024717538] [2019-10-13 21:23:03,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:23:03,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:23:03,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:23:03,974 INFO L87 Difference]: Start difference. First operand 154 states and 181 transitions. Second operand 7 states. [2019-10-13 21:23:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:04,365 INFO L93 Difference]: Finished difference Result 280 states and 335 transitions. [2019-10-13 21:23:04,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:23:04,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-13 21:23:04,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:04,368 INFO L225 Difference]: With dead ends: 280 [2019-10-13 21:23:04,368 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 21:23:04,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:23:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 21:23:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-13 21:23:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-13 21:23:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 180 transitions. [2019-10-13 21:23:04,402 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 180 transitions. Word has length 64 [2019-10-13 21:23:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:04,405 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 180 transitions. [2019-10-13 21:23:04,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:23:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 180 transitions. [2019-10-13 21:23:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-13 21:23:04,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:04,408 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] [2019-10-13 21:23:04,408 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:04,408 INFO L82 PathProgramCache]: Analyzing trace with hash 330531379, now seen corresponding path program 1 times [2019-10-13 21:23:04,409 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:04,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972027348] [2019-10-13 21:23:04,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:04,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:04,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:04,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972027348] [2019-10-13 21:23:04,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:04,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:23:04,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272750472] [2019-10-13 21:23:04,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:23:04,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:04,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:23:04,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:23:04,547 INFO L87 Difference]: Start difference. First operand 154 states and 180 transitions. Second operand 5 states. [2019-10-13 21:23:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:05,271 INFO L93 Difference]: Finished difference Result 399 states and 482 transitions. [2019-10-13 21:23:05,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:23:05,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2019-10-13 21:23:05,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:05,274 INFO L225 Difference]: With dead ends: 399 [2019-10-13 21:23:05,274 INFO L226 Difference]: Without dead ends: 273 [2019-10-13 21:23:05,275 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:23:05,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-13 21:23:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 255. [2019-10-13 21:23:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-10-13 21:23:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 290 transitions. [2019-10-13 21:23:05,320 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 290 transitions. Word has length 82 [2019-10-13 21:23:05,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:05,320 INFO L462 AbstractCegarLoop]: Abstraction has 255 states and 290 transitions. [2019-10-13 21:23:05,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:23:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 290 transitions. [2019-10-13 21:23:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-13 21:23:05,329 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:05,329 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] [2019-10-13 21:23:05,329 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1154984362, now seen corresponding path program 1 times [2019-10-13 21:23:05,330 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:05,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460309091] [2019-10-13 21:23:05,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:05,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:05,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:23:05,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460309091] [2019-10-13 21:23:05,471 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:05,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:23:05,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629858880] [2019-10-13 21:23:05,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:23:05,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:05,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:23:05,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:23:05,473 INFO L87 Difference]: Start difference. First operand 255 states and 290 transitions. Second operand 7 states. [2019-10-13 21:23:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:06,100 INFO L93 Difference]: Finished difference Result 499 states and 583 transitions. [2019-10-13 21:23:06,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:23:06,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-13 21:23:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:06,104 INFO L225 Difference]: With dead ends: 499 [2019-10-13 21:23:06,104 INFO L226 Difference]: Without dead ends: 272 [2019-10-13 21:23:06,105 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:23:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-10-13 21:23:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 254. [2019-10-13 21:23:06,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-13 21:23:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 287 transitions. [2019-10-13 21:23:06,145 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 287 transitions. Word has length 96 [2019-10-13 21:23:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:06,146 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 287 transitions. [2019-10-13 21:23:06,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:23:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 287 transitions. [2019-10-13 21:23:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 21:23:06,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:06,148 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] [2019-10-13 21:23:06,149 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:06,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:06,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1590195415, now seen corresponding path program 1 times [2019-10-13 21:23:06,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:06,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727881808] [2019-10-13 21:23:06,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:06,279 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 21:23:06,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727881808] [2019-10-13 21:23:06,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:06,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:23:06,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900897663] [2019-10-13 21:23:06,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:23:06,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:23:06,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:23:06,283 INFO L87 Difference]: Start difference. First operand 254 states and 287 transitions. Second operand 6 states. [2019-10-13 21:23:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:06,329 INFO L93 Difference]: Finished difference Result 487 states and 564 transitions. [2019-10-13 21:23:06,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:23:06,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-10-13 21:23:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:06,334 INFO L225 Difference]: With dead ends: 487 [2019-10-13 21:23:06,334 INFO L226 Difference]: Without dead ends: 261 [2019-10-13 21:23:06,335 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:23:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-10-13 21:23:06,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2019-10-13 21:23:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-13 21:23:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 292 transitions. [2019-10-13 21:23:06,370 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 292 transitions. Word has length 112 [2019-10-13 21:23:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:06,372 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 292 transitions. [2019-10-13 21:23:06,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:23:06,372 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 292 transitions. [2019-10-13 21:23:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 21:23:06,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:06,375 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] [2019-10-13 21:23:06,375 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -765609835, now seen corresponding path program 1 times [2019-10-13 21:23:06,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:06,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704331800] [2019-10-13 21:23:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:06,485 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 21:23:06,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704331800] [2019-10-13 21:23:06,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:06,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:23:06,486 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678146290] [2019-10-13 21:23:06,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:23:06,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:06,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:23:06,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:23:06,488 INFO L87 Difference]: Start difference. First operand 259 states and 292 transitions. Second operand 8 states. [2019-10-13 21:23:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:06,530 INFO L93 Difference]: Finished difference Result 497 states and 575 transitions. [2019-10-13 21:23:06,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:23:06,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2019-10-13 21:23:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:06,536 INFO L225 Difference]: With dead ends: 497 [2019-10-13 21:23:06,536 INFO L226 Difference]: Without dead ends: 266 [2019-10-13 21:23:06,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:23:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-13 21:23:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2019-10-13 21:23:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-10-13 21:23:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2019-10-13 21:23:06,560 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 112 [2019-10-13 21:23:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:06,561 INFO L462 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2019-10-13 21:23:06,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:23:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2019-10-13 21:23:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 21:23:06,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:06,566 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] [2019-10-13 21:23:06,567 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:06,568 INFO L82 PathProgramCache]: Analyzing trace with hash 3560180, now seen corresponding path program 1 times [2019-10-13 21:23:06,568 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:06,568 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880154113] [2019-10-13 21:23:06,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:06,655 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 21:23:06,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880154113] [2019-10-13 21:23:06,655 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:06,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:23:06,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955588268] [2019-10-13 21:23:06,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:23:06,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:06,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:23:06,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:23:06,658 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand 4 states. [2019-10-13 21:23:06,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:06,928 INFO L93 Difference]: Finished difference Result 754 states and 890 transitions. [2019-10-13 21:23:06,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:23:06,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2019-10-13 21:23:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:06,933 INFO L225 Difference]: With dead ends: 754 [2019-10-13 21:23:06,933 INFO L226 Difference]: Without dead ends: 519 [2019-10-13 21:23:06,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:23:06,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-13 21:23:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 510. [2019-10-13 21:23:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-13 21:23:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 591 transitions. [2019-10-13 21:23:06,969 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 591 transitions. Word has length 112 [2019-10-13 21:23:06,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:06,970 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 591 transitions. [2019-10-13 21:23:06,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:23:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 591 transitions. [2019-10-13 21:23:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-13 21:23:06,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:06,972 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 21:23:06,972 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:06,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:06,973 INFO L82 PathProgramCache]: Analyzing trace with hash -427651474, now seen corresponding path program 1 times [2019-10-13 21:23:06,973 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:06,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047304116] [2019-10-13 21:23:06,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:06,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:07,135 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 21:23:07,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047304116] [2019-10-13 21:23:07,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:07,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:23:07,137 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516343814] [2019-10-13 21:23:07,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:23:07,138 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:23:07,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:23:07,139 INFO L87 Difference]: Start difference. First operand 510 states and 591 transitions. Second operand 9 states. [2019-10-13 21:23:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:08,225 INFO L93 Difference]: Finished difference Result 1335 states and 1616 transitions. [2019-10-13 21:23:08,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:23:08,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2019-10-13 21:23:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:08,234 INFO L225 Difference]: With dead ends: 1335 [2019-10-13 21:23:08,235 INFO L226 Difference]: Without dead ends: 926 [2019-10-13 21:23:08,237 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:23:08,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-13 21:23:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 850. [2019-10-13 21:23:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-10-13 21:23:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 973 transitions. [2019-10-13 21:23:08,308 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 973 transitions. Word has length 116 [2019-10-13 21:23:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:08,309 INFO L462 AbstractCegarLoop]: Abstraction has 850 states and 973 transitions. [2019-10-13 21:23:08,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:23:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 973 transitions. [2019-10-13 21:23:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:23:08,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:08,315 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:08,316 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:08,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:08,316 INFO L82 PathProgramCache]: Analyzing trace with hash -701597495, now seen corresponding path program 1 times [2019-10-13 21:23:08,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:08,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522298880] [2019-10-13 21:23:08,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:08,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:08,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 21:23:08,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522298880] [2019-10-13 21:23:08,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503669435] [2019-10-13 21:23:08,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:23:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:08,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:23:08,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:23:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:23:08,990 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:23:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 21:23:09,511 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [327357407] [2019-10-13 21:23:09,518 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 194 [2019-10-13 21:23:09,570 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:23:09,571 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:23:09,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:23:09,650 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-13 21:23:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:09,654 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:23:09,714 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:23:09,714 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:23:09,719 INFO L553 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-10-13 21:23:09,719 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:23:09,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:23:09,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11, 7, 7] total 19 [2019-10-13 21:23:09,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148436690] [2019-10-13 21:23:09,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:23:09,722 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:09,722 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:23:09,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:23:09,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:09,723 INFO L87 Difference]: Start difference. First operand 850 states and 973 transitions. Second operand 2 states. [2019-10-13 21:23:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:09,734 INFO L93 Difference]: Finished difference Result 850 states and 973 transitions. [2019-10-13 21:23:09,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:23:09,734 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-13 21:23:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:09,735 INFO L225 Difference]: With dead ends: 850 [2019-10-13 21:23:09,735 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:23:09,737 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:23:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:23:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:23:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:23:09,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-10-13 21:23:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:09,738 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:23:09,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:23:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:23:09,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:23:09,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:23:09,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:23:10,245 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point L544-2(lines 544 565) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point L566(lines 543 567) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 519 574) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 519 574) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point L550(lines 550 554) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 550 554) no Hoare annotation was computed. [2019-10-13 21:23:10,246 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 519 574) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point L607(lines 607 611) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point L607-1(lines 607 611) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point L602(line 602) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point L601-2(lines 601 626) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 575 634) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point L627(lines 600 628) no Hoare annotation was computed. [2019-10-13 21:23:10,247 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 575 634) no Hoare annotation was computed. [2019-10-13 21:23:10,248 INFO L443 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2019-10-13 21:23:10,248 INFO L443 ceAbstractionStarter]: For program point L620-1(line 620) no Hoare annotation was computed. [2019-10-13 21:23:10,248 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 575 634) no Hoare annotation was computed. [2019-10-13 21:23:10,248 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 904 910) the Hoare annotation is: true [2019-10-13 21:23:10,248 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 904 910) no Hoare annotation was computed. [2019-10-13 21:23:10,248 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 911 919) no Hoare annotation was computed. [2019-10-13 21:23:10,249 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 911 919) the Hoare annotation is: true [2019-10-13 21:23:10,249 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 911 919) no Hoare annotation was computed. [2019-10-13 21:23:10,249 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 835 842) the Hoare annotation is: true [2019-10-13 21:23:10,249 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1EXIT(lines 835 842) no Hoare annotation was computed. [2019-10-13 21:23:10,249 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1FINAL(lines 835 842) no Hoare annotation was computed. [2019-10-13 21:23:10,249 INFO L443 ceAbstractionStarter]: For program point L848(line 848) no Hoare annotation was computed. [2019-10-13 21:23:10,249 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 843 852) the Hoare annotation is: true [2019-10-13 21:23:10,249 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2EXIT(lines 843 852) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2FINAL(lines 843 852) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L443 ceAbstractionStarter]: For program point L865(lines 865 875) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L446 ceAbstractionStarter]: At program point L863(line 863) the Hoare annotation is: true [2019-10-13 21:23:10,250 INFO L443 ceAbstractionStarter]: For program point L863-1(line 863) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L443 ceAbstractionStarter]: For program point L861(lines 861 878) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L443 ceAbstractionStarter]: For program point L861-1(lines 853 881) no Hoare annotation was computed. [2019-10-13 21:23:10,250 INFO L446 ceAbstractionStarter]: At program point L859(line 859) the Hoare annotation is: true [2019-10-13 21:23:10,251 INFO L443 ceAbstractionStarter]: For program point L859-1(line 859) no Hoare annotation was computed. [2019-10-13 21:23:10,251 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 853 881) the Hoare annotation is: true [2019-10-13 21:23:10,251 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__3EXIT(lines 853 881) no Hoare annotation was computed. [2019-10-13 21:23:10,251 INFO L446 ceAbstractionStarter]: At program point L868(line 868) the Hoare annotation is: true [2019-10-13 21:23:10,251 INFO L443 ceAbstractionStarter]: For program point L866(lines 866 872) no Hoare annotation was computed. [2019-10-13 21:23:10,251 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 1003 1025) the Hoare annotation is: true [2019-10-13 21:23:10,251 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 1003 1025) no Hoare annotation was computed. [2019-10-13 21:23:10,252 INFO L446 ceAbstractionStarter]: At program point L1015(line 1015) the Hoare annotation is: true [2019-10-13 21:23:10,252 INFO L446 ceAbstractionStarter]: At program point L1015-1(line 1015) the Hoare annotation is: true [2019-10-13 21:23:10,252 INFO L443 ceAbstractionStarter]: For program point L1013(lines 1013 1020) no Hoare annotation was computed. [2019-10-13 21:23:10,252 INFO L443 ceAbstractionStarter]: For program point L1013-1(lines 1013 1020) no Hoare annotation was computed. [2019-10-13 21:23:10,252 INFO L443 ceAbstractionStarter]: For program point L1011(line 1011) no Hoare annotation was computed. [2019-10-13 21:23:10,252 INFO L446 ceAbstractionStarter]: At program point L1010(line 1010) the Hoare annotation is: true [2019-10-13 21:23:10,252 INFO L446 ceAbstractionStarter]: At program point L1009(line 1009) the Hoare annotation is: true [2019-10-13 21:23:10,252 INFO L446 ceAbstractionStarter]: At program point L1009-1(line 1009) the Hoare annotation is: true [2019-10-13 21:23:10,252 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 1003 1025) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 961 984) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 961 984) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 961 984) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point L979(line 979) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point L978(line 978) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point L977(line 977) no Hoare annotation was computed. [2019-10-13 21:23:10,253 INFO L443 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L973(line 973) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L972(line 972) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L971(line 971) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L970(line 970) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L969(line 969) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-10-13 21:23:10,254 INFO L443 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L443 ceAbstractionStarter]: For program point L966(line 966) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L443 ceAbstractionStarter]: For program point L192(lines 192 200) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L446 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: true [2019-10-13 21:23:10,255 INFO L443 ceAbstractionStarter]: For program point L190-1(line 190) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 205) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 184 208) the Hoare annotation is: true [2019-10-13 21:23:10,255 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 184 208) no Hoare annotation was computed. [2019-10-13 21:23:10,255 INFO L446 ceAbstractionStarter]: At program point L203(line 203) the Hoare annotation is: true [2019-10-13 21:23:10,256 INFO L443 ceAbstractionStarter]: For program point L203-1(lines 184 208) no Hoare annotation was computed. [2019-10-13 21:23:10,256 INFO L446 ceAbstractionStarter]: At program point L198(line 198) the Hoare annotation is: true [2019-10-13 21:23:10,256 INFO L446 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: true [2019-10-13 21:23:10,256 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 279 287) no Hoare annotation was computed. [2019-10-13 21:23:10,256 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 279 287) the Hoare annotation is: true [2019-10-13 21:23:10,256 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 279 287) no Hoare annotation was computed. [2019-10-13 21:23:10,256 INFO L443 ceAbstractionStarter]: For program point L352(lines 352 356) no Hoare annotation was computed. [2019-10-13 21:23:10,256 INFO L446 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: true [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L352-2(lines 352 356) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L350-1(line 350) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 343 361) the Hoare annotation is: true [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 343 361) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 343 361) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L318(line 318) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L318-1(line 318) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L307(lines 307 315) no Hoare annotation was computed. [2019-10-13 21:23:10,257 INFO L443 ceAbstractionStarter]: For program point L307-2(lines 307 315) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 288 323) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point L295(lines 295 303) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 288 323) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point L295-2(lines 295 303) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 288 323) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 897 903) no Hoare annotation was computed. [2019-10-13 21:23:10,258 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 897 903) the Hoare annotation is: true [2019-10-13 21:23:10,258 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 473 518) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 473 518) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 473 518) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point L800(lines 800 820) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point L800-1(lines 800 820) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 786 831) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 786 831) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point L806(lines 806 813) no Hoare annotation was computed. [2019-10-13 21:23:10,259 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 786 831) no Hoare annotation was computed. [2019-10-13 21:23:10,260 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 992 1002) the Hoare annotation is: true [2019-10-13 21:23:10,260 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 992 1002) no Hoare annotation was computed. [2019-10-13 21:23:10,260 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 992 1002) no Hoare annotation was computed. [2019-10-13 21:23:10,260 INFO L446 ceAbstractionStarter]: At program point L997(line 997) the Hoare annotation is: true [2019-10-13 21:23:10,260 INFO L446 ceAbstractionStarter]: At program point L273(line 273) the Hoare annotation is: true [2019-10-13 21:23:10,260 INFO L443 ceAbstractionStarter]: For program point L273-1(line 273) no Hoare annotation was computed. [2019-10-13 21:23:10,260 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 268 278) the Hoare annotation is: true [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 268 278) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 268 278) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 260 267) the Hoare annotation is: true [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 260 267) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 260 267) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point L447(lines 447 453) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 443 456) no Hoare annotation was computed. [2019-10-13 21:23:10,261 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 443 456) the Hoare annotation is: true [2019-10-13 21:23:10,262 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 443 456) no Hoare annotation was computed. [2019-10-13 21:23:10,262 INFO L446 ceAbstractionStarter]: At program point L224(line 224) the Hoare annotation is: true [2019-10-13 21:23:10,262 INFO L446 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: true [2019-10-13 21:23:10,262 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 226) no Hoare annotation was computed. [2019-10-13 21:23:10,262 INFO L446 ceAbstractionStarter]: At program point L216(line 216) the Hoare annotation is: true [2019-10-13 21:23:10,262 INFO L443 ceAbstractionStarter]: For program point L216-1(line 216) no Hoare annotation was computed. [2019-10-13 21:23:10,262 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 210 234) no Hoare annotation was computed. [2019-10-13 21:23:10,262 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 231) no Hoare annotation was computed. [2019-10-13 21:23:10,263 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 210 234) the Hoare annotation is: true [2019-10-13 21:23:10,263 INFO L446 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: true [2019-10-13 21:23:10,263 INFO L443 ceAbstractionStarter]: For program point L229-1(lines 210 234) no Hoare annotation was computed. [2019-10-13 21:23:10,263 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 150 156) no Hoare annotation was computed. [2019-10-13 21:23:10,263 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 150 156) the Hoare annotation is: true [2019-10-13 21:23:10,263 INFO L446 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: true [2019-10-13 21:23:10,263 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2019-10-13 21:23:10,263 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: true [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2019-10-13 21:23:10,264 INFO L446 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: true [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2019-10-13 21:23:10,264 INFO L446 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: true [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2019-10-13 21:23:10,264 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L446 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: true [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L446 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: true [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 740 785) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point L760(lines 760 767) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 740 785) no Hoare annotation was computed. [2019-10-13 21:23:10,265 INFO L443 ceAbstractionStarter]: For program point L754(lines 754 774) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point L754-1(lines 754 774) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 740 785) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 235 242) the Hoare annotation is: true [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 235 242) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 235 242) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 457 465) no Hoare annotation was computed. [2019-10-13 21:23:10,266 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 457 465) the Hoare annotation is: true [2019-10-13 21:23:10,266 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 457 465) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point L419-2(lines 419 427) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 411 433) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 411 433) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 411 433) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point L419(lines 419 427) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 637 739) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point L702(line 702) no Hoare annotation was computed. [2019-10-13 21:23:10,267 INFO L443 ceAbstractionStarter]: For program point L702-1(line 702) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L661(lines 661 665) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L725(lines 725 736) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L688(lines 688 692) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L686-2(lines 686 706) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 637 739) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L707(lines 685 708) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L666(lines 666 682) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point L726(lines 726 733) no Hoare annotation was computed. [2019-10-13 21:23:10,268 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 637 739) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point L687(lines 686 706) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point L718(line 718) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point L718-1(line 718) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point L683(lines 683 724) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 887 896) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 887 896) no Hoare annotation was computed. [2019-10-13 21:23:10,269 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 887 896) no Hoare annotation was computed. [2019-10-13 21:23:10,270 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,270 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (= 1 ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2019-10-13 21:23:10,270 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,270 INFO L446 ceAbstractionStarter]: At program point L254(line 254) the Hoare annotation is: true [2019-10-13 21:23:10,270 INFO L443 ceAbstractionStarter]: For program point L254-1(lines 243 259) no Hoare annotation was computed. [2019-10-13 21:23:10,270 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 243 259) no Hoare annotation was computed. [2019-10-13 21:23:10,270 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 256) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 243 259) the Hoare annotation is: true [2019-10-13 21:23:10,271 INFO L446 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2019-10-13 21:23:10,271 INFO L443 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 324 342) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 337) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L446 ceAbstractionStarter]: At program point L331(line 331) the Hoare annotation is: true [2019-10-13 21:23:10,271 INFO L443 ceAbstractionStarter]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L443 ceAbstractionStarter]: For program point L331-1(line 331) no Hoare annotation was computed. [2019-10-13 21:23:10,271 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 324 342) the Hoare annotation is: true [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 324 342) no Hoare annotation was computed. [2019-10-13 21:23:10,272 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 434 442) the Hoare annotation is: true [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 434 442) no Hoare annotation was computed. [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 434 442) no Hoare annotation was computed. [2019-10-13 21:23:10,272 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 390 401) the Hoare annotation is: true [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 390 401) no Hoare annotation was computed. [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 390 401) no Hoare annotation was computed. [2019-10-13 21:23:10,272 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,273 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,273 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,273 INFO L443 ceAbstractionStarter]: For program point L128(lines 126 148) no Hoare annotation was computed. [2019-10-13 21:23:10,273 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 123 149) the Hoare annotation is: true [2019-10-13 21:23:10,273 INFO L446 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: true [2019-10-13 21:23:10,273 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 123 149) no Hoare annotation was computed. [2019-10-13 21:23:10,273 INFO L446 ceAbstractionStarter]: At program point L137(lines 137 143) the Hoare annotation is: true [2019-10-13 21:23:10,274 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 123 149) no Hoare annotation was computed. [2019-10-13 21:23:10,274 INFO L446 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: true [2019-10-13 21:23:10,274 INFO L443 ceAbstractionStarter]: For program point L130(lines 126 148) no Hoare annotation was computed. [2019-10-13 21:23:10,274 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 931 960) no Hoare annotation was computed. [2019-10-13 21:23:10,274 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 931 960) the Hoare annotation is: true [2019-10-13 21:23:10,274 INFO L446 ceAbstractionStarter]: At program point L956(lines 931 960) the Hoare annotation is: true [2019-10-13 21:23:10,274 INFO L443 ceAbstractionStarter]: For program point L952(line 952) no Hoare annotation was computed. [2019-10-13 21:23:10,274 INFO L443 ceAbstractionStarter]: For program point L945(lines 945 949) no Hoare annotation was computed. [2019-10-13 21:23:10,274 INFO L446 ceAbstractionStarter]: At program point L945-1(lines 945 949) the Hoare annotation is: true [2019-10-13 21:23:10,275 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-10-13 21:23:10,275 INFO L446 ceAbstractionStarter]: At program point L941-2(lines 941 955) the Hoare annotation is: true [2019-10-13 21:23:10,275 INFO L446 ceAbstractionStarter]: At program point L937(line 937) the Hoare annotation is: true [2019-10-13 21:23:10,275 INFO L443 ceAbstractionStarter]: For program point L937-1(line 937) no Hoare annotation was computed. [2019-10-13 21:23:10,275 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 402 410) the Hoare annotation is: true [2019-10-13 21:23:10,275 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 402 410) no Hoare annotation was computed. [2019-10-13 21:23:10,275 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 402 410) no Hoare annotation was computed. [2019-10-13 21:23:10,275 INFO L443 ceAbstractionStarter]: For program point L370-1(lines 366 377) no Hoare annotation was computed. [2019-10-13 21:23:10,276 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 366 377) the Hoare annotation is: true [2019-10-13 21:23:10,276 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 366 377) no Hoare annotation was computed. [2019-10-13 21:23:10,276 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 985 991) no Hoare annotation was computed. [2019-10-13 21:23:10,276 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 985 991) the Hoare annotation is: true [2019-10-13 21:23:10,276 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,276 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:23:10,276 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:23:10,276 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:10,277 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 158 182) the Hoare annotation is: true [2019-10-13 21:23:10,277 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 158 182) no Hoare annotation was computed. [2019-10-13 21:23:10,277 INFO L446 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: true [2019-10-13 21:23:10,277 INFO L443 ceAbstractionStarter]: For program point L177-1(lines 158 182) no Hoare annotation was computed. [2019-10-13 21:23:10,277 INFO L446 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: true [2019-10-13 21:23:10,277 INFO L446 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2019-10-13 21:23:10,277 INFO L443 ceAbstractionStarter]: For program point L166(lines 166 174) no Hoare annotation was computed. [2019-10-13 21:23:10,277 INFO L446 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: true [2019-10-13 21:23:10,277 INFO L443 ceAbstractionStarter]: For program point L164-1(line 164) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 179) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 378 389) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L443 ceAbstractionStarter]: For program point L382-1(lines 378 389) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 378 389) the Hoare annotation is: true [2019-10-13 21:23:10,278 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 921 928) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 925) no Hoare annotation was computed. [2019-10-13 21:23:10,278 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 921 928) the Hoare annotation is: true [2019-10-13 21:23:10,279 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 921 928) no Hoare annotation was computed. [2019-10-13 21:23:10,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:23:10 BoogieIcfgContainer [2019-10-13 21:23:10,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:23:10,291 INFO L168 Benchmark]: Toolchain (without parser) took 9314.98 ms. Allocated memory was 138.9 MB in the beginning and 370.1 MB in the end (delta: 231.2 MB). Free memory was 101.6 MB in the beginning and 215.1 MB in the end (delta: -113.5 MB). Peak memory consumption was 117.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,292 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.16 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 170.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,293 INFO L168 Benchmark]: Boogie Preprocessor took 99.61 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,294 INFO L168 Benchmark]: RCFGBuilder took 1204.98 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.6 MB in the beginning and 194.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,295 INFO L168 Benchmark]: TraceAbstraction took 7366.32 ms. Allocated memory was 236.5 MB in the beginning and 370.1 MB in the end (delta: 133.7 MB). Free memory was 193.1 MB in the beginning and 215.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:10,299 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.16 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 170.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.61 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1204.98 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.6 MB in the beginning and 194.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7366.32 ms. Allocated memory was 236.5 MB in the beginning and 370.1 MB in the end (delta: 133.7 MB). Free memory was 193.1 MB in the beginning and 215.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 925]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 262 locations, 1 error locations. Result: SAFE, OverallTime: 7.2s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 1789 SDtfs, 1304 SDslu, 3575 SDs, 0 SdLazy, 2042 SolverSat, 475 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 126 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 1134 PreInvPairs, 1135 NumberOfFragments, 82 HoareAnnotationTreeSize, 1134 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 72 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1199 NumberOfCodeBlocks, 1199 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 319602 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1001 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 154/189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 137, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7864583333333334, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...