/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:21:40,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:21:40,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:21:40,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:21:40,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:21:40,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:21:40,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:21:40,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:21:40,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:21:40,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:21:40,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:21:40,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:21:40,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:21:40,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:21:40,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:21:40,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:21:40,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:21:40,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:21:40,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:21:40,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:21:40,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:21:40,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:21:40,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:21:40,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:21:40,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:21:40,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:21:40,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:21:40,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:21:40,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:21:40,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:21:40,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:21:40,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:21:40,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:21:40,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:21:40,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:21:40,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:21:40,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:21:40,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:21:40,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:21:40,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:21:40,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:21:40,943 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 21:21:40,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:21:40,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:21:40,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:21:40,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:21:40,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:21:40,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:21:40,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:21:40,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:21:40,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:21:40,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:21:40,957 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:21:40,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:21:40,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:21:40,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:21:40,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:21:40,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:21:40,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:21:40,958 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 21:21:41,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:21:41,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:21:41,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:21:41,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:21:41,289 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:21:41,289 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-08-22 21:21:41,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98062201/9754aaec15674107bea099c5785bf8a5/FLAGd3730f913 [2020-08-22 21:21:41,876 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:21:41,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-08-22 21:21:41,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98062201/9754aaec15674107bea099c5785bf8a5/FLAGd3730f913 [2020-08-22 21:21:42,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98062201/9754aaec15674107bea099c5785bf8a5 [2020-08-22 21:21:42,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:21:42,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:21:42,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:21:42,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:21:42,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:21:42,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42, skipping insertion in model container [2020-08-22 21:21:42,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:21:42,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:21:42,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:21:42,735 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:21:42,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:21:42,925 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:21:42,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42 WrapperNode [2020-08-22 21:21:42,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:21:42,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:21:42,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:21:42,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:21:42,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:42,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:43,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:43,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (1/1) ... [2020-08-22 21:21:43,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:21:43,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:21:43,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:21:43,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:21:43,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (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 21:21:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:21:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:21:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:21:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:21:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:21:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:21:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:21:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:21:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:21:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:21:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:21:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:21:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:21:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:21:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:21:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:21:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:21:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:21:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:21:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:21:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:21:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:21:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:21:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 21:21:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:21:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:21:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:21:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:21:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:21:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:21:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:21:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:21:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:21:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:21:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:21:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:21:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:21:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:21:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 21:21:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:21:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:21:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:21:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:21:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:21:44,353 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:21:44,360 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:21:44,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:21:44 BoogieIcfgContainer [2020-08-22 21:21:44,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:21:44,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:21:44,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:21:44,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:21:44,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:21:42" (1/3) ... [2020-08-22 21:21:44,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:21:44, skipping insertion in model container [2020-08-22 21:21:44,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:21:42" (2/3) ... [2020-08-22 21:21:44,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:21:44, skipping insertion in model container [2020-08-22 21:21:44,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:21:44" (3/3) ... [2020-08-22 21:21:44,382 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-08-22 21:21:44,392 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:21:44,404 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:21:44,422 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:21:44,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:21:44,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:21:44,443 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:21:44,443 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:21:44,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:21:44,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:21:44,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:21:44,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:21:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2020-08-22 21:21:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:21:44,483 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:21:44,484 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 21:21:44,484 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:21:44,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:21:44,489 INFO L82 PathProgramCache]: Analyzing trace with hash 713311147, now seen corresponding path program 1 times [2020-08-22 21:21:44,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:21:44,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547124544] [2020-08-22 21:21:44,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:21:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,251 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:21:45,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:21:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:21:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:21:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:21:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:21:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:21:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:21:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:21:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:45,432 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 21:21:45,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547124544] [2020-08-22 21:21:45,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:21:45,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:21:45,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122093938] [2020-08-22 21:21:45,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:21:45,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:21:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:21:45,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:21:45,472 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 3 states. [2020-08-22 21:21:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:21:46,852 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-08-22 21:21:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:21:46,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:21:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:21:46,886 INFO L225 Difference]: With dead ends: 394 [2020-08-22 21:21:46,886 INFO L226 Difference]: Without dead ends: 254 [2020-08-22 21:21:46,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:21:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-22 21:21:47,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-08-22 21:21:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-22 21:21:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-08-22 21:21:47,049 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-08-22 21:21:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:21:47,050 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-08-22 21:21:47,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:21:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-08-22 21:21:47,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:21:47,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:21:47,055 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 21:21:47,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:21:47,056 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:21:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:21:47,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1000146475, now seen corresponding path program 1 times [2020-08-22 21:21:47,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:21:47,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224994780] [2020-08-22 21:21:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:21:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,395 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:21:47,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:21:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:21:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:21:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:21:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:21:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:21:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:21:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:21:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:47,500 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 21:21:47,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224994780] [2020-08-22 21:21:47,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:21:47,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:21:47,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093433112] [2020-08-22 21:21:47,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:21:47,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:21:47,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:21:47,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:21:47,507 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-08-22 21:21:48,222 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:21:48,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:21:48,892 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-08-22 21:21:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:21:48,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:21:48,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:21:48,901 INFO L225 Difference]: With dead ends: 298 [2020-08-22 21:21:48,901 INFO L226 Difference]: Without dead ends: 237 [2020-08-22 21:21:48,903 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 21:21:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-08-22 21:21:48,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-08-22 21:21:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-08-22 21:21:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-08-22 21:21:48,975 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-08-22 21:21:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:21:48,975 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-08-22 21:21:48,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:21:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-08-22 21:21:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 21:21:48,978 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:21:48,978 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 21:21:48,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:21:48,979 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:21:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:21:48,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1955216043, now seen corresponding path program 1 times [2020-08-22 21:21:48,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:21:48,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962951729] [2020-08-22 21:21:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:21:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,302 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:21:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:21:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:21:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:21:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:21:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:21:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:21:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:21:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:21:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:21:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:49,499 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 21:21:49,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962951729] [2020-08-22 21:21:49,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:21:49,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:21:49,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083137497] [2020-08-22 21:21:49,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:21:49,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:21:49,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:21:49,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:21:49,506 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 10 states. [2020-08-22 21:21:50,087 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:21:50,491 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:21:50,788 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:21:51,096 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:51,380 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:21:51,660 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:52,663 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:21:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:21:54,291 INFO L93 Difference]: Finished difference Result 550 states and 638 transitions. [2020-08-22 21:21:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:21:54,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 21:21:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:21:54,297 INFO L225 Difference]: With dead ends: 550 [2020-08-22 21:21:54,297 INFO L226 Difference]: Without dead ends: 456 [2020-08-22 21:21:54,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 21:21:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-08-22 21:21:54,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2020-08-22 21:21:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-08-22 21:21:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 392 transitions. [2020-08-22 21:21:54,419 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 392 transitions. Word has length 167 [2020-08-22 21:21:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:21:54,420 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 392 transitions. [2020-08-22 21:21:54,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:21:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 392 transitions. [2020-08-22 21:21:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-22 21:21:54,423 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:21:54,423 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] [2020-08-22 21:21:54,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:21:54,424 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:21:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:21:54,424 INFO L82 PathProgramCache]: Analyzing trace with hash 546702602, now seen corresponding path program 1 times [2020-08-22 21:21:54,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:21:54,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230582901] [2020-08-22 21:21:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:21:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,753 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:21:54,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:21:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:21:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:21:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:21:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:21:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:21:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:21:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 21:21:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 21:21:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 21:21:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:54,921 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 21:21:54,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230582901] [2020-08-22 21:21:54,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:21:54,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:21:54,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031434771] [2020-08-22 21:21:54,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:21:54,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:21:54,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:21:54,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:21:54,926 INFO L87 Difference]: Start difference. First operand 357 states and 392 transitions. Second operand 9 states. [2020-08-22 21:21:55,509 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:21:56,984 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:57,281 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:21:57,582 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:57,872 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:21:58,151 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:21:58,485 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:58,778 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:21:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:21:59,300 INFO L93 Difference]: Finished difference Result 909 states and 1077 transitions. [2020-08-22 21:21:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:21:59,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-08-22 21:21:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:21:59,313 INFO L225 Difference]: With dead ends: 909 [2020-08-22 21:21:59,313 INFO L226 Difference]: Without dead ends: 662 [2020-08-22 21:21:59,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:21:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-08-22 21:21:59,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 579. [2020-08-22 21:21:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-08-22 21:21:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 655 transitions. [2020-08-22 21:21:59,491 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 655 transitions. Word has length 170 [2020-08-22 21:21:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:21:59,491 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 655 transitions. [2020-08-22 21:21:59,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:21:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 655 transitions. [2020-08-22 21:21:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-08-22 21:21:59,495 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:21:59,496 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] [2020-08-22 21:21:59,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:21:59,496 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:21:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:21:59,497 INFO L82 PathProgramCache]: Analyzing trace with hash 758250360, now seen corresponding path program 1 times [2020-08-22 21:21:59,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:21:59,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229149779] [2020-08-22 21:21:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:21:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,775 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:21:59,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:21:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:21:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:21:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:21:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:21:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:21:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:21:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 21:21:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 21:21:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 21:21:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 21:21:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:21:59,936 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 21:21:59,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229149779] [2020-08-22 21:21:59,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:21:59,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:21:59,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26356429] [2020-08-22 21:21:59,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:21:59,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:21:59,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:21:59,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:21:59,939 INFO L87 Difference]: Start difference. First operand 579 states and 655 transitions. Second operand 6 states. [2020-08-22 21:22:00,488 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:01,619 INFO L93 Difference]: Finished difference Result 1068 states and 1252 transitions. [2020-08-22 21:22:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 21:22:01,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-08-22 21:22:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:01,635 INFO L225 Difference]: With dead ends: 1068 [2020-08-22 21:22:01,635 INFO L226 Difference]: Without dead ends: 599 [2020-08-22 21:22:01,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-22 21:22:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-08-22 21:22:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 530. [2020-08-22 21:22:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-08-22 21:22:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 581 transitions. [2020-08-22 21:22:01,934 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 581 transitions. Word has length 175 [2020-08-22 21:22:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:01,934 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 581 transitions. [2020-08-22 21:22:01,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:22:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 581 transitions. [2020-08-22 21:22:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-08-22 21:22:01,941 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:01,941 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] [2020-08-22 21:22:01,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:22:01,942 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:01,943 INFO L82 PathProgramCache]: Analyzing trace with hash 194624342, now seen corresponding path program 1 times [2020-08-22 21:22:01,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:01,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822339701] [2020-08-22 21:22:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:02,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:22:02,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:22:02,324 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:22:02,325 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:22:02,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:22:02,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:22:02 BoogieIcfgContainer [2020-08-22 21:22:02,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:22:02,585 INFO L168 Benchmark]: Toolchain (without parser) took 20366.63 ms. Allocated memory was 137.4 MB in the beginning and 602.4 MB in the end (delta: 465.0 MB). Free memory was 100.6 MB in the beginning and 387.8 MB in the end (delta: -287.2 MB). Peak memory consumption was 177.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,590 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.37 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 166.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,593 INFO L168 Benchmark]: Boogie Preprocessor took 87.55 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 161.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,594 INFO L168 Benchmark]: RCFGBuilder took 1354.77 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.8 MB in the beginning and 175.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,595 INFO L168 Benchmark]: TraceAbstraction took 18210.67 ms. Allocated memory was 230.7 MB in the beginning and 602.4 MB in the end (delta: 371.7 MB). Free memory was 174.2 MB in the beginning and 387.8 MB in the end (delta: -213.6 MB). Peak memory consumption was 158.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:22:02,609 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.37 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 166.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.55 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 161.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.77 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.8 MB in the beginning and 175.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18210.67 ms. Allocated memory was 230.7 MB in the beginning and 602.4 MB in the end (delta: 371.7 MB). Free memory was 174.2 MB in the beginning and 387.8 MB in the end (delta: -213.6 MB). Peak memory consumption was 158.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=142, pumpRunning=131, systemActive=130, waterLevel=1] [L47] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L530] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L677] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L678] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] 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] [L607] 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] [L611] 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] [L612] 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] [L613] 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] [L521] 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] [L524] 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] [L525] 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] [L613] 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] [L613] 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] [L615] 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] [L617] 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] [L618] 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] [L600] 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] [L808] 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] [L809] 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] [L810] 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] [L811] 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] [L812] 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] [L815] 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] [L817] 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] [L819] 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] [L825] 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] [L827] 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] [L829] 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] [L64] 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] [L65] 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] [L829] 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] [L835] 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] [L837] 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] [L845] 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] [L847] 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] [L849] CALL startSystem() 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] [L802] systemActive = 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] [L849] RET startSystem() 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] [L864] 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] [L684] 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] [L691] 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] [L693] 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] [L699] 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] [L640] 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] [L641] 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] [L642] 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] [L646] 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] [L85] 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] [L88] 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] [L89] 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] [L646] 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] [L646] 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] [L648] 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] [L652] 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] [L117] 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] [L120] 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] [L121] 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] [L652] 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] [L652] 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] [L654] 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] [L656] 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] [L739] 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] [L742] 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] [L743] 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] [L656] 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] [L656] 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] [L658] 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] [L662] 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] [L633] __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, 588 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 979 SDtfs, 1553 SDslu, 1438 SDs, 0 SdLazy, 2520 SolverSat, 508 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=579occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 324 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 324848 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...