/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:22:23,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:22:23,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:22:23,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:22:23,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:22:23,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:22:23,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:22:23,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:22:23,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:22:23,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:22:23,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:22:23,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:22:23,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:22:23,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:22:23,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:22:23,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:22:23,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:22:23,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:22:23,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:22:23,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:22:23,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:22:23,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:22:23,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:22:23,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:22:23,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:22:23,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:22:23,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:22:23,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:22:23,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:22:23,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:22:23,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:22:23,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:22:23,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:22:23,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:22:23,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:22:23,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:22:23,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:22:23,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:22:23,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:22:23,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:22:23,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:22:23,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:22:23,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:22:23,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:22:23,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:22:23,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:22:23,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:22:23,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:22:23,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:22:23,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:22:23,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:22:23,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:22:23,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:22:23,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:22:23,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:22:23,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:22:23,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:22:23,833 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:22:23,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:22:23,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:22:23,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:22:23,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:22:23,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:22:23,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:22:23,835 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:22:24,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:22:24,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:22:24,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:22:24,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:22:24,102 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:22:24,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-22 21:22:24,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e09f292/3da8d728857241cbb096906edaaa53a3/FLAG485fa8c43 [2020-08-22 21:22:24,735 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:22:24,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-08-22 21:22:24,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e09f292/3da8d728857241cbb096906edaaa53a3/FLAG485fa8c43 [2020-08-22 21:22:25,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e09f292/3da8d728857241cbb096906edaaa53a3 [2020-08-22 21:22:25,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:22:25,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:22:25,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:25,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:22:25,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:22:25,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443cf995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25, skipping insertion in model container [2020-08-22 21:22:25,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:22:25,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:22:25,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:25,584 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:22:25,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:25,750 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:22:25,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25 WrapperNode [2020-08-22 21:22:25,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:25,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:22:25,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:22:25,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:22:25,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (1/1) ... [2020-08-22 21:22:25,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:22:25,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:22:25,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:22:25,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:22:25,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (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 [2020-08-22 21:22:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:22:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:22:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:22:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:22:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:22:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:22:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:22:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-22 21:22:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:22:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:22:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:22:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:22:25,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:22:25,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:22:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:22:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:22:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:22:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:22:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:22:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:22:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:22:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:22:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:22:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:22:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:22:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:22:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:22:27,131 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:22:27,131 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:22:27,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:27 BoogieIcfgContainer [2020-08-22 21:22:27,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:22:27,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:22:27,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:22:27,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:22:27,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:22:25" (1/3) ... [2020-08-22 21:22:27,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6212d290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:27, skipping insertion in model container [2020-08-22 21:22:27,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:25" (2/3) ... [2020-08-22 21:22:27,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6212d290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:27, skipping insertion in model container [2020-08-22 21:22:27,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:27" (3/3) ... [2020-08-22 21:22:27,151 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-08-22 21:22:27,162 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:22:27,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:22:27,187 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:22:27,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:22:27,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:22:27,207 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:22:27,207 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:22:27,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:22:27,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:22:27,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:22:27,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:22:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-08-22 21:22:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:22:27,249 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:27,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:27,251 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:27,257 INFO L82 PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times [2020-08-22 21:22:27,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:27,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057642686] [2020-08-22 21:22:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:27,991 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:27,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:22:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:22:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:22:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:28,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057642686] [2020-08-22 21:22:28,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:28,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:22:28,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288263149] [2020-08-22 21:22:28,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:22:28,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:28,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:22:28,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:22:28,309 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-08-22 21:22:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:29,715 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-08-22 21:22:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:22:29,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:22:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:29,740 INFO L225 Difference]: With dead ends: 436 [2020-08-22 21:22:29,740 INFO L226 Difference]: Without dead ends: 276 [2020-08-22 21:22:29,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:22:29,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-08-22 21:22:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-08-22 21:22:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-08-22 21:22:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-08-22 21:22:29,870 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-08-22 21:22:29,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:29,871 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-08-22 21:22:29,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:22:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-08-22 21:22:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:22:29,876 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:29,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:29,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:22:29,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:29,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:29,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1620128513, now seen corresponding path program 1 times [2020-08-22 21:22:29,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:29,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215172816] [2020-08-22 21:22:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,196 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:22:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:22:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:22:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:30,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:30,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215172816] [2020-08-22 21:22:30,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:30,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:22:30,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857100333] [2020-08-22 21:22:30,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:22:30,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:30,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:22:30,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:22:30,298 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-08-22 21:22:30,863 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:22:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:31,681 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-08-22 21:22:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:22:31,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:22:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:31,689 INFO L225 Difference]: With dead ends: 343 [2020-08-22 21:22:31,689 INFO L226 Difference]: Without dead ends: 259 [2020-08-22 21:22:31,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:22:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-08-22 21:22:31,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-08-22 21:22:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-22 21:22:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-08-22 21:22:31,799 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-08-22 21:22:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:31,801 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-08-22 21:22:31,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:22:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-08-22 21:22:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 21:22:31,805 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:31,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:31,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:22:31,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:31,806 INFO L82 PathProgramCache]: Analyzing trace with hash 43350617, now seen corresponding path program 1 times [2020-08-22 21:22:31,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:31,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422125954] [2020-08-22 21:22:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,118 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:32,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:22:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:22:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:22:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:22:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:32,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422125954] [2020-08-22 21:22:32,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:32,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:22:32,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305717415] [2020-08-22 21:22:32,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:22:32,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:32,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:22:32,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:22:32,263 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 10 states. [2020-08-22 21:22:32,970 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:33,377 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:22:33,716 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:22:33,994 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:34,260 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:34,489 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:35,392 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:22:37,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:37,509 INFO L93 Difference]: Finished difference Result 614 states and 719 transitions. [2020-08-22 21:22:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:22:37,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 21:22:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:37,520 INFO L225 Difference]: With dead ends: 614 [2020-08-22 21:22:37,520 INFO L226 Difference]: Without dead ends: 500 [2020-08-22 21:22:37,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 21:22:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-08-22 21:22:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 409. [2020-08-22 21:22:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-08-22 21:22:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 458 transitions. [2020-08-22 21:22:37,671 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 458 transitions. Word has length 167 [2020-08-22 21:22:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:37,672 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 458 transitions. [2020-08-22 21:22:37,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:22:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 458 transitions. [2020-08-22 21:22:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 21:22:37,675 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:37,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:37,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:22:37,676 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:37,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:37,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1596285256, now seen corresponding path program 1 times [2020-08-22 21:22:37,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:37,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851367245] [2020-08-22 21:22:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,026 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:22:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 21:22:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 21:22:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 21:22:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:38,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851367245] [2020-08-22 21:22:38,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:38,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:22:38,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070048723] [2020-08-22 21:22:38,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:22:38,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:38,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:22:38,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:22:38,195 INFO L87 Difference]: Start difference. First operand 409 states and 458 transitions. Second operand 9 states. [2020-08-22 21:22:38,711 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:40,394 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:40,657 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:40,927 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:41,207 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:41,447 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:41,698 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:41,963 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:42,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:42,670 INFO L93 Difference]: Finished difference Result 1085 states and 1315 transitions. [2020-08-22 21:22:42,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:22:42,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 21:22:42,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:42,677 INFO L225 Difference]: With dead ends: 1085 [2020-08-22 21:22:42,677 INFO L226 Difference]: Without dead ends: 786 [2020-08-22 21:22:42,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:22:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-08-22 21:22:42,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 687. [2020-08-22 21:22:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2020-08-22 21:22:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions. [2020-08-22 21:22:42,941 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 172 [2020-08-22 21:22:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:42,942 INFO L479 AbstractCegarLoop]: Abstraction has 687 states and 793 transitions. [2020-08-22 21:22:42,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:22:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions. [2020-08-22 21:22:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 21:22:42,946 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:42,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:42,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:22:42,947 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:42,948 INFO L82 PathProgramCache]: Analyzing trace with hash -469830621, now seen corresponding path program 1 times [2020-08-22 21:22:42,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:42,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581255644] [2020-08-22 21:22:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,231 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:43,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:22:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:22:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:22:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:22:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-22 21:22:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:43,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581255644] [2020-08-22 21:22:43,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:43,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:22:43,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777660879] [2020-08-22 21:22:43,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:22:43,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:43,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:22:43,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:22:43,456 INFO L87 Difference]: Start difference. First operand 687 states and 793 transitions. Second operand 6 states. [2020-08-22 21:22:43,925 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:44,794 INFO L93 Difference]: Finished difference Result 1204 states and 1445 transitions. [2020-08-22 21:22:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 21:22:44,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-08-22 21:22:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:44,800 INFO L225 Difference]: With dead ends: 1204 [2020-08-22 21:22:44,800 INFO L226 Difference]: Without dead ends: 627 [2020-08-22 21:22:44,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-22 21:22:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-08-22 21:22:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 550. [2020-08-22 21:22:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-08-22 21:22:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 601 transitions. [2020-08-22 21:22:45,032 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 601 transitions. Word has length 177 [2020-08-22 21:22:45,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:45,033 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 601 transitions. [2020-08-22 21:22:45,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:22:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 601 transitions. [2020-08-22 21:22:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 21:22:45,037 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:45,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:22:45,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:22:45,037 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:45,038 INFO L82 PathProgramCache]: Analyzing trace with hash 204325415, now seen corresponding path program 1 times [2020-08-22 21:22:45,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:45,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036561438] [2020-08-22 21:22:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:45,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:45,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:45,323 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:22:45,323 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:22:45,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:22:45,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:22:45 BoogieIcfgContainer [2020-08-22 21:22:45,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:22:45,541 INFO L168 Benchmark]: Toolchain (without parser) took 20506.15 ms. Allocated memory was 139.5 MB in the beginning and 671.6 MB in the end (delta: 532.2 MB). Free memory was 102.4 MB in the beginning and 421.4 MB in the end (delta: -319.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,541 INFO L168 Benchmark]: CDTParser took 3.70 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.56 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 171.0 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,543 INFO L168 Benchmark]: Boogie Preprocessor took 119.19 ms. Allocated memory is still 203.4 MB. Free memory was 171.0 MB in the beginning and 165.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,544 INFO L168 Benchmark]: RCFGBuilder took 1269.42 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 165.5 MB in the beginning and 178.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,545 INFO L168 Benchmark]: TraceAbstraction took 18397.04 ms. Allocated memory was 237.5 MB in the beginning and 671.6 MB in the end (delta: 434.1 MB). Free memory was 176.8 MB in the beginning and 421.4 MB in the end (delta: -244.7 MB). Peak memory consumption was 189.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:45,548 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.70 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.56 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 171.0 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.19 ms. Allocated memory is still 203.4 MB. Free memory was 171.0 MB in the beginning and 165.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1269.42 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 165.5 MB in the beginning and 178.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18397.04 ms. Allocated memory was 237.5 MB in the beginning and 671.6 MB in the end (delta: 434.1 MB). Free memory was 176.8 MB in the beginning and 421.4 MB in the end (delta: -244.7 MB). Peak memory consumption was 189.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={176:163}, methaneLevelCritical=147, pumpRunning=139, systemActive=138, waterLevel=140] [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=139, systemActive=138, waterLevel=140] [L596] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=138, waterLevel=140] [L597] int systemActive = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=140] [L806] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L807] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; 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] [L131] 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] [L135] 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] [L136] 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] [L137] 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] [L796] int retValue_acc ; 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] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L800] 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] [L137] 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] [L137] tmp = 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, tmp=1, valid_product()=1, waterLevel=1] [L139] 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] [L141] 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] [L142] 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] [L121] 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] [L522] int splverifierCounter ; 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] [L523] 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] [L524] int tmp___0 ; 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] [L525] int tmp___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=1] [L526] int tmp___2 ; 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] [L529] 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] [L531] 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] [L533] 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] [L539] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L541] 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] [L543] 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] [L824] COND TRUE waterLevel < 2 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] [L825] 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] [L543] 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] [L549] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L551] 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] [L559] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L561] COND FALSE !(\read(tmp___2)) 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___2=0, waterLevel=2] [L567] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=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] [L569] 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] [L571] 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] [L750] 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] [L757] 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] [L571] 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] [L578] 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] [L604] 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] [L611] 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] [L619] 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] [L887] int 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, waterLevel=2] [L888] int tmp___0 ; 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] [L889] 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] [L893] 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] [L845] int retValue_acc ; 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] [L848] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L849] 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] [L893] 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] [L893] tmp = 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, tmp=0, waterLevel=2] [L895] 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] [L899] 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] [L877] int retValue_acc ; 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] [L880] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L881] 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] [L899] 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] [L899] tmp___0 = 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, tmp___0=2, waterLevel=2] [L901] 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] [L903] 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] [L702] int retValue_acc ; 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] [L705] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L706] 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] [L903] 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] [L903] tmp___1 = 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, tmp___1=0, waterLevel=2] [L905] 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] [L909] 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] [L44] __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 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 1773 SDslu, 1538 SDs, 0 SdLazy, 2961 SolverSat, 641 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred 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: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 344 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 331590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...