/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:42:10,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:42:10,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:42:10,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:42:10,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:42:10,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:42:10,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:42:10,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:42:10,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:42:10,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:42:10,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:42:10,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:42:10,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:42:10,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:42:10,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:42:10,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:42:10,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:42:10,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:42:10,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:42:10,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:42:10,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:42:10,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:42:10,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:42:10,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:42:10,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:42:10,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:42:10,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:42:10,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:42:10,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:42:10,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:42:10,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:42:10,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:42:10,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:42:10,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:42:10,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:42:10,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:42:10,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:42:10,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:42:10,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:42:10,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:42:10,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:42:10,845 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 [2020-07-20 10:42:10,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:42:10,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:42:10,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:42:10,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:42:10,860 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:42:10,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:42:10,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:42:10,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:42:10,862 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:42:10,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:42:10,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:42:10,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:42:10,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:42:10,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:42:10,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:42:10,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:42:10,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:42:10,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:42:10,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:42:10,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:42:11,140 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:42:11,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:42:11,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:42:11,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:42:11,158 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:42:11,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-20 10:42:11,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3357906aa/6893b1168adb4f449f3eb169bdd5dbb9/FLAG083da4b04 [2020-07-20 10:42:11,748 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:42:11,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-20 10:42:11,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3357906aa/6893b1168adb4f449f3eb169bdd5dbb9/FLAG083da4b04 [2020-07-20 10:42:12,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3357906aa/6893b1168adb4f449f3eb169bdd5dbb9 [2020-07-20 10:42:12,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:42:12,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:42:12,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:12,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:42:12,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:42:12,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a377596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12, skipping insertion in model container [2020-07-20 10:42:12,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:42:12,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:42:12,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:12,595 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:42:12,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:12,742 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:42:12,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12 WrapperNode [2020-07-20 10:42:12,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:12,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:42:12,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:42:12,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:42:12,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (1/1) ... [2020-07-20 10:42:12,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:42:12,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:42:12,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:42:12,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:42:12,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (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 [2020-07-20 10:42:12,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:42:12,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:42:12,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:12,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:42:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:42:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:42:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:42:12,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:42:12,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:42:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 10:42:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:42:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:42:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 10:42:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:42:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:42:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:42:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:42:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:42:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:42:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:42:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:42:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:42:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:42:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:42:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:42:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:42:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:42:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:42:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:42:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:42:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:42:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:42:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:42:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:42:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:42:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:42:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 10:42:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:42:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:42:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:42:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:42:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:42:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:42:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 10:42:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 10:42:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:42:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 10:42:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:42:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:42:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:42:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:42:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:42:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:42:13,977 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:42:13,977 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:42:13,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:13 BoogieIcfgContainer [2020-07-20 10:42:13,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:42:13,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:42:13,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:42:13,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:42:13,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:42:12" (1/3) ... [2020-07-20 10:42:13,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340515ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:13, skipping insertion in model container [2020-07-20 10:42:13,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:12" (2/3) ... [2020-07-20 10:42:13,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340515ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:13, skipping insertion in model container [2020-07-20 10:42:13,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:13" (3/3) ... [2020-07-20 10:42:13,990 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-07-20 10:42:14,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:42:14,008 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:42:14,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:42:14,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:42:14,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:42:14,045 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:42:14,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:42:14,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:42:14,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:42:14,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:42:14,046 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:42:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-20 10:42:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:42:14,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:14,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:14,080 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:14,086 INFO L82 PathProgramCache]: Analyzing trace with hash 628645976, now seen corresponding path program 1 times [2020-07-20 10:42:14,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:14,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831212174] [2020-07-20 10:42:14,095 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:14,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:42:14,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:14,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:14,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831212174] [2020-07-20 10:42:14,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:14,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:42:14,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643200567] [2020-07-20 10:42:14,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:42:14,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:14,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:42:14,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:14,421 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2020-07-20 10:42:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:14,467 INFO L93 Difference]: Finished difference Result 270 states and 337 transitions. [2020-07-20 10:42:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:42:14,469 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:42:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:14,484 INFO L225 Difference]: With dead ends: 270 [2020-07-20 10:42:14,484 INFO L226 Difference]: Without dead ends: 135 [2020-07-20 10:42:14,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:14,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-20 10:42:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-07-20 10:42:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-07-20 10:42:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-07-20 10:42:14,545 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-07-20 10:42:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:14,545 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-07-20 10:42:14,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:42:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-07-20 10:42:14,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:42:14,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:14,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:14,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:14,764 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:14,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:14,764 INFO L82 PathProgramCache]: Analyzing trace with hash 364620848, now seen corresponding path program 1 times [2020-07-20 10:42:14,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:14,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841810162] [2020-07-20 10:42:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:14,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:42:14,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:15,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:15,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841810162] [2020-07-20 10:42:15,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:15,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:15,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058184155] [2020-07-20 10:42:15,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:15,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:15,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:15,027 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 3 states. [2020-07-20 10:42:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:15,048 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2020-07-20 10:42:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:15,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:42:15,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:15,051 INFO L225 Difference]: With dead ends: 209 [2020-07-20 10:42:15,052 INFO L226 Difference]: Without dead ends: 126 [2020-07-20 10:42:15,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-20 10:42:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-20 10:42:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-20 10:42:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-07-20 10:42:15,067 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-07-20 10:42:15,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:15,067 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-07-20 10:42:15,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-07-20 10:42:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 10:42:15,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:15,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:15,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:15,285 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:15,286 INFO L82 PathProgramCache]: Analyzing trace with hash -840364754, now seen corresponding path program 1 times [2020-07-20 10:42:15,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:15,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167921917] [2020-07-20 10:42:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:15,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:15,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:15,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:15,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167921917] [2020-07-20 10:42:15,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:15,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:15,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482291916] [2020-07-20 10:42:15,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:15,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:15,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:15,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:15,513 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 3 states. [2020-07-20 10:42:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:15,549 INFO L93 Difference]: Finished difference Result 326 states and 395 transitions. [2020-07-20 10:42:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:15,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 10:42:15,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:15,553 INFO L225 Difference]: With dead ends: 326 [2020-07-20 10:42:15,553 INFO L226 Difference]: Without dead ends: 224 [2020-07-20 10:42:15,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:15,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-20 10:42:15,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2020-07-20 10:42:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-20 10:42:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 263 transitions. [2020-07-20 10:42:15,581 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 263 transitions. Word has length 58 [2020-07-20 10:42:15,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:15,582 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 263 transitions. [2020-07-20 10:42:15,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:15,582 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 263 transitions. [2020-07-20 10:42:15,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 10:42:15,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:15,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:15,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:15,800 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:15,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:15,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1271614513, now seen corresponding path program 1 times [2020-07-20 10:42:15,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:15,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545482704] [2020-07-20 10:42:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:16,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:16,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:16,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:16,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545482704] [2020-07-20 10:42:16,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:16,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:16,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190275836] [2020-07-20 10:42:16,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:16,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:16,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:16,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:16,110 INFO L87 Difference]: Start difference. First operand 218 states and 263 transitions. Second operand 6 states. [2020-07-20 10:42:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:16,374 INFO L93 Difference]: Finished difference Result 591 states and 739 transitions. [2020-07-20 10:42:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:16,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 10:42:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:16,379 INFO L225 Difference]: With dead ends: 591 [2020-07-20 10:42:16,380 INFO L226 Difference]: Without dead ends: 397 [2020-07-20 10:42:16,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:42:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-07-20 10:42:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 393. [2020-07-20 10:42:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-20 10:42:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 484 transitions. [2020-07-20 10:42:16,421 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 484 transitions. Word has length 63 [2020-07-20 10:42:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:16,421 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 484 transitions. [2020-07-20 10:42:16,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 484 transitions. [2020-07-20 10:42:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 10:42:16,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:16,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:16,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:16,639 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:16,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1708991285, now seen corresponding path program 1 times [2020-07-20 10:42:16,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:16,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322904933] [2020-07-20 10:42:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:16,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:16,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:17,177 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:17,177 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:17,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:17,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:17 BoogieIcfgContainer [2020-07-20 10:42:17,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:17,552 INFO L168 Benchmark]: Toolchain (without parser) took 5427.76 ms. Allocated memory was 145.8 MB in the beginning and 280.0 MB in the end (delta: 134.2 MB). Free memory was 102.7 MB in the beginning and 238.4 MB in the end (delta: -135.7 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,553 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.96 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 170.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,555 INFO L168 Benchmark]: Boogie Preprocessor took 88.67 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,556 INFO L168 Benchmark]: RCFGBuilder took 1150.41 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.6 MB in the beginning and 194.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,557 INFO L168 Benchmark]: TraceAbstraction took 3566.47 ms. Allocated memory was 236.5 MB in the beginning and 280.0 MB in the end (delta: 43.5 MB). Free memory was 192.7 MB in the beginning and 238.4 MB in the end (delta: -45.7 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:17,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.96 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 170.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.67 ms. Allocated memory is still 202.9 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.41 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.6 MB in the beginning and 194.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3566.47 ms. Allocated memory was 236.5 MB in the beginning and 280.0 MB in the end (delta: 43.5 MB). Free memory was 192.7 MB in the beginning and 238.4 MB in the end (delta: -45.7 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int pumpRunning = 0; [L490] int systemActive = 1; [L717] int cleanupTimeShifts = 4; [L886] int waterLevel = 1; [L887] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=88, \old(head)=93, \old(head)=89, \old(methaneLevelCritical)=60, \old(pumpRunning)=66, \old(systemActive)=90, \old(waterLevel)=94, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L793] int retValue_acc ; [L794] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L799] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] int retValue_acc ; [L880] retValue_acc = 1 [L881] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L800] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L804] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L805] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L784] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] COND TRUE waterLevel < 2 [L905] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L462] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L462] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L497] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L504] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L512] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L818] int tmp ; [L819] int tmp___0 ; [L820] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L824] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] int retValue_acc ; [L928] retValue_acc = methaneLevelCritical [L929] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L824] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L824] tmp = isMethaneLevelCritical() [L826] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L830] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L957] int retValue_acc ; [L960] retValue_acc = waterLevel [L961] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L830] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L830] tmp___0 = getWaterLevel() [L832] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L834] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] int retValue_acc ; [L624] retValue_acc = pumpRunning [L625] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L834] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L834] tmp___1 = isPumpRunning() [L836] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L840] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L712] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 206 SDslu, 770 SDs, 0 SdLazy, 95 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=393occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...