/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:22:06,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:22:06,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:22:06,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:22:06,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:22:06,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:22:06,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:22:06,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:22:06,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:22:06,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:22:06,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:22:06,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:22:06,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:22:06,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:22:06,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:22:06,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:22:06,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:22:06,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:22:06,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:22:06,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:22:06,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:22:06,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:22:06,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:22:06,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:22:06,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:22:06,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:22:06,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:22:06,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:22:06,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:22:06,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:22:06,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:22:06,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:22:06,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:22:06,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:22:06,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:22:06,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:22:06,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:22:06,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:22:06,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:22:06,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:22:06,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:22:06,829 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 21:22:06,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:22:06,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:22:06,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:22:06,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:22:06,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:22:06,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:22:06,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:22:06,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:22:06,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:22:06,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:22:06,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:22:06,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:22:06,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:22:06,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:22:06,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:22:06,842 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:22:06,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:22:06,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:22:06,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:22:06,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:22:06,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:22:06,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:22:06,844 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 21:22:07,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:22:07,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:22:07,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:22:07,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:22:07,163 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:22:07,164 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-08-22 21:22:07,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0562cf72b/a5a9690b9dc944b094627b867c703d5f/FLAG970d8d2f5 [2020-08-22 21:22:07,738 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:22:07,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-08-22 21:22:07,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0562cf72b/a5a9690b9dc944b094627b867c703d5f/FLAG970d8d2f5 [2020-08-22 21:22:08,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0562cf72b/a5a9690b9dc944b094627b867c703d5f [2020-08-22 21:22:08,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:22:08,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:22:08,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:08,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:22:08,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:22:08,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5882c27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08, skipping insertion in model container [2020-08-22 21:22:08,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:22:08,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:22:08,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:08,615 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:22:08,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:08,775 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:22:08,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08 WrapperNode [2020-08-22 21:22:08,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:08,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:22:08,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:22:08,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:22:08,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (1/1) ... [2020-08-22 21:22:08,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:22:08,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:22:08,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:22:08,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:22:08,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (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 21:22:08,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:22:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:22:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:22:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:22:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:22:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:22:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:22:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:22:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:22:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:22:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:22:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:22:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:22:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:22:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:22:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:22:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-22 21:22:08,957 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:22:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:22:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:22:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:22:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:22:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:22:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:22:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:22:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:22:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:22:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:22:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:22:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:22:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:22:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:22:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:22:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:22:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:22:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:22:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:22:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-22 21:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:22:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:22:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:22:10,265 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:22:10,265 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:22:10,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:10 BoogieIcfgContainer [2020-08-22 21:22:10,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:22:10,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:22:10,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:22:10,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:22:10,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:22:08" (1/3) ... [2020-08-22 21:22:10,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4482d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:10, skipping insertion in model container [2020-08-22 21:22:10,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:08" (2/3) ... [2020-08-22 21:22:10,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4482d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:10, skipping insertion in model container [2020-08-22 21:22:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:10" (3/3) ... [2020-08-22 21:22:10,281 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-08-22 21:22:10,291 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:22:10,300 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:22:10,313 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:22:10,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:22:10,331 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:22:10,331 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:22:10,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:22:10,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:22:10,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:22:10,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:22:10,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:22:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-08-22 21:22:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:22:10,374 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:10,376 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 21:22:10,376 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:10,383 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-08-22 21:22:10,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:10,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695644077] [2020-08-22 21:22:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,128 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:11,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:22:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:22:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:22:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:11,381 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 21:22:11,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695644077] [2020-08-22 21:22:11,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:11,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:22:11,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364016514] [2020-08-22 21:22:11,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:22:11,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:11,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:22:11,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:22:11,416 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2020-08-22 21:22:12,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:12,750 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-08-22 21:22:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:22:12,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:22:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:12,770 INFO L225 Difference]: With dead ends: 385 [2020-08-22 21:22:12,770 INFO L226 Difference]: Without dead ends: 249 [2020-08-22 21:22:12,775 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 21:22:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-08-22 21:22:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-08-22 21:22:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-08-22 21:22:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-08-22 21:22:12,901 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-08-22 21:22:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:12,902 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-08-22 21:22:12,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:22:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-08-22 21:22:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:22:12,907 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:12,907 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 21:22:12,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:22:12,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:12,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1859532277, now seen corresponding path program 1 times [2020-08-22 21:22:12,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:12,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042114390] [2020-08-22 21:22:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,296 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:13,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:22:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:22:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:22:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:13,378 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 21:22:13,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042114390] [2020-08-22 21:22:13,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:13,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:22:13,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980892046] [2020-08-22 21:22:13,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:22:13,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:13,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:22:13,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:22:13,383 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-08-22 21:22:14,048 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:22:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:14,666 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-08-22 21:22:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:22:14,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:22:14,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:14,670 INFO L225 Difference]: With dead ends: 293 [2020-08-22 21:22:14,671 INFO L226 Difference]: Without dead ends: 232 [2020-08-22 21:22:14,672 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 21:22:14,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-08-22 21:22:14,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-08-22 21:22:14,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-08-22 21:22:14,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-08-22 21:22:14,736 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-08-22 21:22:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:14,737 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-08-22 21:22:14,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:22:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-08-22 21:22:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 21:22:14,740 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:14,740 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] [2020-08-22 21:22:14,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:22:14,741 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:14,741 INFO L82 PathProgramCache]: Analyzing trace with hash 97616053, now seen corresponding path program 1 times [2020-08-22 21:22:14,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:14,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651434803] [2020-08-22 21:22:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,084 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:22:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:22:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 21:22:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:15,242 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 21:22:15,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651434803] [2020-08-22 21:22:15,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:15,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:22:15,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384796356] [2020-08-22 21:22:15,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:22:15,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:15,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:22:15,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:22:15,246 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 9 states. [2020-08-22 21:22:15,957 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:16,346 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:22:16,585 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:22:16,829 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:17,083 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:17,317 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:18,251 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:22:19,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:19,584 INFO L93 Difference]: Finished difference Result 514 states and 587 transitions. [2020-08-22 21:22:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:22:19,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 21:22:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:19,589 INFO L225 Difference]: With dead ends: 514 [2020-08-22 21:22:19,589 INFO L226 Difference]: Without dead ends: 424 [2020-08-22 21:22:19,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:22:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-08-22 21:22:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 353. [2020-08-22 21:22:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-22 21:22:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 388 transitions. [2020-08-22 21:22:19,719 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 388 transitions. Word has length 163 [2020-08-22 21:22:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:19,720 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 388 transitions. [2020-08-22 21:22:19,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:22:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 388 transitions. [2020-08-22 21:22:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-08-22 21:22:19,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:19,723 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] [2020-08-22 21:22:19,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:22:19,724 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:19,724 INFO L82 PathProgramCache]: Analyzing trace with hash -2677620, now seen corresponding path program 1 times [2020-08-22 21:22:19,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:19,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298952024] [2020-08-22 21:22:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,017 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 21:22:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 21:22:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:22:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 21:22:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:20,180 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 21:22:20,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298952024] [2020-08-22 21:22:20,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:20,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 21:22:20,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966357777] [2020-08-22 21:22:20,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 21:22:20,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:20,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 21:22:20,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 21:22:20,185 INFO L87 Difference]: Start difference. First operand 353 states and 388 transitions. Second operand 8 states. [2020-08-22 21:22:20,701 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:21,957 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:22,241 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:22,482 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:22,734 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:22,965 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:23,206 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:23,445 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:23,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:23,883 INFO L93 Difference]: Finished difference Result 850 states and 994 transitions. [2020-08-22 21:22:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:22:23,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-08-22 21:22:23,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:23,897 INFO L225 Difference]: With dead ends: 850 [2020-08-22 21:22:23,898 INFO L226 Difference]: Without dead ends: 607 [2020-08-22 21:22:23,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:22:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-08-22 21:22:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 571. [2020-08-22 21:22:24,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-08-22 21:22:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 647 transitions. [2020-08-22 21:22:24,103 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 647 transitions. Word has length 166 [2020-08-22 21:22:24,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:24,104 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 647 transitions. [2020-08-22 21:22:24,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 21:22:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 647 transitions. [2020-08-22 21:22:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-22 21:22:24,107 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:24,108 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] [2020-08-22 21:22:24,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:22:24,108 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:24,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1190106924, now seen corresponding path program 1 times [2020-08-22 21:22:24,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:24,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462294573] [2020-08-22 21:22:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,377 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 21:22:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:22:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 21:22:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 21:22:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 21:22:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:24,470 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 21:22:24,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462294573] [2020-08-22 21:22:24,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:24,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 21:22:24,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053046287] [2020-08-22 21:22:24,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 21:22:24,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:24,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 21:22:24,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:22:24,472 INFO L87 Difference]: Start difference. First operand 571 states and 647 transitions. Second operand 5 states. [2020-08-22 21:22:24,967 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:25,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:25,700 INFO L93 Difference]: Finished difference Result 945 states and 1095 transitions. [2020-08-22 21:22:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 21:22:25,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-08-22 21:22:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:25,704 INFO L225 Difference]: With dead ends: 945 [2020-08-22 21:22:25,704 INFO L226 Difference]: Without dead ends: 544 [2020-08-22 21:22:25,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:22:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-08-22 21:22:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 522. [2020-08-22 21:22:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-22 21:22:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 573 transitions. [2020-08-22 21:22:25,853 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 573 transitions. Word has length 171 [2020-08-22 21:22:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:25,854 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 573 transitions. [2020-08-22 21:22:25,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 21:22:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 573 transitions. [2020-08-22 21:22:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-22 21:22:25,857 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:25,857 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] [2020-08-22 21:22:25,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:22:25,858 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:25,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:25,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-08-22 21:22:25,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:25,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851654156] [2020-08-22 21:22:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:25,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:25,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:26,122 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:22:26,123 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:22:26,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:22:26,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:22:26 BoogieIcfgContainer [2020-08-22 21:22:26,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:22:26,357 INFO L168 Benchmark]: Toolchain (without parser) took 18234.81 ms. Allocated memory was 138.4 MB in the beginning and 596.1 MB in the end (delta: 457.7 MB). Free memory was 101.7 MB in the beginning and 99.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 459.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,362 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.36 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 171.2 MB in the end (delta: -69.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,365 INFO L168 Benchmark]: Boogie Preprocessor took 95.61 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,366 INFO L168 Benchmark]: RCFGBuilder took 1399.99 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 180.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,367 INFO L168 Benchmark]: TraceAbstraction took 16080.69 ms. Allocated memory was 234.4 MB in the beginning and 596.1 MB in the end (delta: 361.8 MB). Free memory was 178.8 MB in the beginning and 99.5 MB in the end (delta: 79.3 MB). Peak memory consumption was 441.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:26,379 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.36 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.5 MB in the beginning and 171.2 MB in the end (delta: -69.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.61 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1399.99 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 180.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16080.69 ms. Allocated memory was 234.4 MB in the beginning and 596.1 MB in the end (delta: 361.8 MB). Free memory was 178.8 MB in the beginning and 99.5 MB in the end (delta: 79.3 MB). Peak memory consumption was 441.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={176:162}, methaneLevelCritical=145, pumpRunning=135, systemActive=134, waterLevel=139] [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=135, systemActive=134, waterLevel=139] [L588] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=134, waterLevel=139] [L589] int systemActive = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=139] [L804] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=1] [L805] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] 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] [L160] 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] [L164] 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] [L165] 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] [L166] 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] [L208] 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] [L211] 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] [L212] 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] [L166] 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] [L166] 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] [L168] 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] [L170] 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] [L171] 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] [L150] 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] [L729] 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] [L730] 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] [L731] 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] [L732] 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] [L733] 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] [L736] 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] [L738] 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] [L740] 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] [L746] 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] [L748] 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] [L750] 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] [L822] 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] [L823] 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] [L750] 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] [L756] 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] [L758] 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] [L766] tmp___2 = __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___2=1, waterLevel=2] [L768] COND TRUE \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=1, waterLevel=2] [L783] 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=1, waterLevel=2] [L595] 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=1, waterLevel=2] [L602] COND TRUE \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=1, waterLevel=2] [L604] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] 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=1, waterLevel=2] [L45] 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=1, waterLevel=2] [L46] 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=1, waterLevel=2] [L47] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L843] 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=1, waterLevel=2] [L846] 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=1, waterLevel=2] [L847] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L51] 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=1, tmp=0, waterLevel=2] [L53] 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=1, tmp=0, waterLevel=2] [L57] 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=1, waterLevel=2] [L875] 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=1, waterLevel=2] [L878] 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=1, waterLevel=2] [L879] 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=1, waterLevel=2] [L57] 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=1, tmp=0, waterLevel=2] [L57] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L59] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] 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=1, waterLevel=2] [L668] 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=1, waterLevel=2] [L671] 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=1, waterLevel=2] [L672] 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=1, waterLevel=2] [L61] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L63] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] 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=1, waterLevel=2] [L799] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 957 SDtfs, 1119 SDslu, 1286 SDs, 0 SdLazy, 2280 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 200 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 978 NumberOfCodeBlocks, 978 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 327802 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...