/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.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:57:40,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:57:40,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:57:40,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:57:40,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:57:40,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:57:40,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:57:40,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:57:40,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:57:40,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:57:40,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:57:40,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:57:40,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:57:40,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:57:40,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:57:40,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:57:40,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:57:40,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:57:40,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:57:40,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:57:40,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:57:40,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:57:40,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:57:40,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:57:40,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:57:40,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:57:40,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:57:40,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:57:40,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:57:40,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:57:40,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:57:40,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:57:40,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:57:40,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:57:40,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:57:40,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:57:40,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:57:40,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:57:40,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:57:40,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:57:40,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:57:40,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 20:57:41,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:57:41,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:57:41,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:57:41,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:57:41,007 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:57:41,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:57:41,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:57:41,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:57:41,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:57:41,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:57:41,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:57:41,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:57:41,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:57:41,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:57:41,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:57:41,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:57:41,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:57:41,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:57:41,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:57:41,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:57:41,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:57:41,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:57:41,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:57:41,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:57:41,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:57:41,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:57:41,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:57:41,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:57:41,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:57:41,328 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:57:41,328 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-07-19 20:57:41,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1b7768f/191867c45d254b748249768bfb369c14/FLAG6fe315e85 [2020-07-19 20:57:41,992 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:57:41,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-07-19 20:57:42,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1b7768f/191867c45d254b748249768bfb369c14/FLAG6fe315e85 [2020-07-19 20:57:42,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1b7768f/191867c45d254b748249768bfb369c14 [2020-07-19 20:57:42,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:57:42,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:57:42,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:42,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:57:42,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:57:42,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6377931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42, skipping insertion in model container [2020-07-19 20:57:42,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:57:42,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:57:42,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:42,629 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:57:42,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:42,844 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:57:42,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42 WrapperNode [2020-07-19 20:57:42,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:42,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:57:42,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:57:42,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:57:42,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (1/1) ... [2020-07-19 20:57:42,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:57:42,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:57:42,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:57:42,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:57:42,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (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 [2020-07-19 20:57:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:57:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:57:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:57:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:57:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:57:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:57:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:57:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 20:57:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 20:57:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:57:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:57:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:57:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:57:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:57:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:57:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 20:57:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:57:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:57:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:57:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:57:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:57:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:57:44,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:57:44,195 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:57:44,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:44 BoogieIcfgContainer [2020-07-19 20:57:44,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:57:44,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:57:44,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:57:44,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:57:44,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:57:42" (1/3) ... [2020-07-19 20:57:44,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277a8f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:44, skipping insertion in model container [2020-07-19 20:57:44,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:42" (2/3) ... [2020-07-19 20:57:44,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277a8f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:44, skipping insertion in model container [2020-07-19 20:57:44,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:44" (3/3) ... [2020-07-19 20:57:44,210 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-07-19 20:57:44,222 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:57:44,231 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:57:44,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:57:44,272 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:57:44,272 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:57:44,272 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:57:44,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:57:44,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:57:44,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:57:44,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:57:44,273 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:57:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-19 20:57:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 20:57:44,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:44,310 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] [2020-07-19 20:57:44,310 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:44,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:44,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1331255295, now seen corresponding path program 1 times [2020-07-19 20:57:44,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:44,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698458104] [2020-07-19 20:57:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,040 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:45,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698458104] [2020-07-19 20:57:45,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:45,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:57:45,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021901972] [2020-07-19 20:57:45,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:57:45,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:45,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:57:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:45,155 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-07-19 20:57:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:46,309 INFO L93 Difference]: Finished difference Result 284 states and 370 transitions. [2020-07-19 20:57:46,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 20:57:46,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-19 20:57:46,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:46,326 INFO L225 Difference]: With dead ends: 284 [2020-07-19 20:57:46,326 INFO L226 Difference]: Without dead ends: 159 [2020-07-19 20:57:46,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-19 20:57:46,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 126. [2020-07-19 20:57:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-19 20:57:46,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-19 20:57:46,428 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 51 [2020-07-19 20:57:46,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:46,429 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-19 20:57:46,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:57:46,429 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-19 20:57:46,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:57:46,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:46,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:46,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:57:46,436 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:46,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:46,437 INFO L82 PathProgramCache]: Analyzing trace with hash -42152189, now seen corresponding path program 1 times [2020-07-19 20:57:46,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:46,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82729651] [2020-07-19 20:57:46,438 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,773 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:46,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82729651] [2020-07-19 20:57:46,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:46,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 20:57:46,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844649533] [2020-07-19 20:57:46,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 20:57:46,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:46,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 20:57:46,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:57:46,837 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 5 states. [2020-07-19 20:57:47,322 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:48,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:48,166 INFO L93 Difference]: Finished difference Result 225 states and 277 transitions. [2020-07-19 20:57:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 20:57:48,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-19 20:57:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:48,169 INFO L225 Difference]: With dead ends: 225 [2020-07-19 20:57:48,169 INFO L226 Difference]: Without dead ends: 149 [2020-07-19 20:57:48,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-19 20:57:48,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 117. [2020-07-19 20:57:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-19 20:57:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-07-19 20:57:48,219 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 52 [2020-07-19 20:57:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:48,220 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-07-19 20:57:48,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 20:57:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-07-19 20:57:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 20:57:48,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:48,233 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] [2020-07-19 20:57:48,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:57:48,233 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1757460962, now seen corresponding path program 1 times [2020-07-19 20:57:48,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:48,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294988377] [2020-07-19 20:57:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,594 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:48,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:48,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294988377] [2020-07-19 20:57:48,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:48,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:48,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390412061] [2020-07-19 20:57:48,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:48,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:48,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:48,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:48,706 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 9 states. [2020-07-19 20:57:49,150 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:49,459 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:49,727 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:50,009 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:51,219 INFO L93 Difference]: Finished difference Result 238 states and 296 transitions. [2020-07-19 20:57:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 20:57:51,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-07-19 20:57:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:51,222 INFO L225 Difference]: With dead ends: 238 [2020-07-19 20:57:51,223 INFO L226 Difference]: Without dead ends: 149 [2020-07-19 20:57:51,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-19 20:57:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 117. [2020-07-19 20:57:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-19 20:57:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2020-07-19 20:57:51,259 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 57 [2020-07-19 20:57:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:51,260 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2020-07-19 20:57:51,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2020-07-19 20:57:51,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-19 20:57:51,261 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:51,261 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] [2020-07-19 20:57:51,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:57:51,262 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:51,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:51,262 INFO L82 PathProgramCache]: Analyzing trace with hash 2060596455, now seen corresponding path program 1 times [2020-07-19 20:57:51,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:51,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455110533] [2020-07-19 20:57:51,263 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,592 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:51,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:51,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455110533] [2020-07-19 20:57:51,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:51,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 20:57:51,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551901887] [2020-07-19 20:57:51,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 20:57:51,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:51,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 20:57:51,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:51,702 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 7 states. [2020-07-19 20:57:52,110 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:53,431 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:54,130 INFO L93 Difference]: Finished difference Result 328 states and 412 transitions. [2020-07-19 20:57:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:54,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-07-19 20:57:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:54,135 INFO L225 Difference]: With dead ends: 328 [2020-07-19 20:57:54,135 INFO L226 Difference]: Without dead ends: 239 [2020-07-19 20:57:54,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:54,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-07-19 20:57:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 190. [2020-07-19 20:57:54,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-19 20:57:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 219 transitions. [2020-07-19 20:57:54,181 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 219 transitions. Word has length 65 [2020-07-19 20:57:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:54,182 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 219 transitions. [2020-07-19 20:57:54,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 20:57:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 219 transitions. [2020-07-19 20:57:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-19 20:57:54,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:54,184 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] [2020-07-19 20:57:54,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:57:54,184 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1161742780, now seen corresponding path program 1 times [2020-07-19 20:57:54,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:54,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639684619] [2020-07-19 20:57:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,485 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:54,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639684619] [2020-07-19 20:57:54,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:54,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:54,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549834109] [2020-07-19 20:57:54,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:54,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:54,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:54,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:54,578 INFO L87 Difference]: Start difference. First operand 190 states and 219 transitions. Second operand 9 states. [2020-07-19 20:57:55,032 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:56,112 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:56,442 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:56,958 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:57,224 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:58,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:58,157 INFO L93 Difference]: Finished difference Result 566 states and 718 transitions. [2020-07-19 20:57:58,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 20:57:58,160 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-07-19 20:57:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:58,164 INFO L225 Difference]: With dead ends: 566 [2020-07-19 20:57:58,164 INFO L226 Difference]: Without dead ends: 404 [2020-07-19 20:57:58,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-19 20:57:58,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-07-19 20:57:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-07-19 20:57:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-19 20:57:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 378 transitions. [2020-07-19 20:57:58,248 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 378 transitions. Word has length 79 [2020-07-19 20:57:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:58,249 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 378 transitions. [2020-07-19 20:57:58,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 378 transitions. [2020-07-19 20:57:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-19 20:57:58,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:58,251 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] [2020-07-19 20:57:58,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:57:58,252 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:58,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1027537504, now seen corresponding path program 1 times [2020-07-19 20:57:58,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:58,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593126696] [2020-07-19 20:57:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:57:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,549 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:57:58,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593126696] [2020-07-19 20:57:58,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:58,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:58,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31303923] [2020-07-19 20:57:58,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:58,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:58,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:58,695 INFO L87 Difference]: Start difference. First operand 328 states and 378 transitions. Second operand 10 states. [2020-07-19 20:57:59,361 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:00,514 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:01,471 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:58:01,710 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:58:01,975 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:58:02,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:02,334 INFO L93 Difference]: Finished difference Result 742 states and 925 transitions. [2020-07-19 20:58:02,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:58:02,335 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-07-19 20:58:02,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:02,341 INFO L225 Difference]: With dead ends: 742 [2020-07-19 20:58:02,341 INFO L226 Difference]: Without dead ends: 442 [2020-07-19 20:58:02,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-07-19 20:58:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-07-19 20:58:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 327. [2020-07-19 20:58:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-07-19 20:58:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 375 transitions. [2020-07-19 20:58:02,429 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 375 transitions. Word has length 83 [2020-07-19 20:58:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:02,430 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 375 transitions. [2020-07-19 20:58:02,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:58:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 375 transitions. [2020-07-19 20:58:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-19 20:58:02,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:02,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:02,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:58:02,433 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:02,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:02,433 INFO L82 PathProgramCache]: Analyzing trace with hash 928544888, now seen corresponding path program 1 times [2020-07-19 20:58:02,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:02,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529050764] [2020-07-19 20:58:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,718 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 20:58:02,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529050764] [2020-07-19 20:58:02,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:02,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:58:02,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875393795] [2020-07-19 20:58:02,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:58:02,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:02,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:58:02,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:58:02,906 INFO L87 Difference]: Start difference. First operand 327 states and 375 transitions. Second operand 10 states. [2020-07-19 20:58:03,842 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:58:04,083 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 20:58:04,329 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:04,586 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:05,427 INFO L93 Difference]: Finished difference Result 749 states and 953 transitions. [2020-07-19 20:58:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:58:05,428 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-07-19 20:58:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:05,431 INFO L225 Difference]: With dead ends: 749 [2020-07-19 20:58:05,431 INFO L226 Difference]: Without dead ends: 450 [2020-07-19 20:58:05,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:58:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-07-19 20:58:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 337. [2020-07-19 20:58:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-19 20:58:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 385 transitions. [2020-07-19 20:58:05,508 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 385 transitions. Word has length 99 [2020-07-19 20:58:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:05,509 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 385 transitions. [2020-07-19 20:58:05,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:58:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 385 transitions. [2020-07-19 20:58:05,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-19 20:58:05,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:05,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:05,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 20:58:05,512 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:05,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1120842954, now seen corresponding path program 1 times [2020-07-19 20:58:05,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:05,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661485583] [2020-07-19 20:58:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,783 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 20:58:05,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661485583] [2020-07-19 20:58:05,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:05,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 20:58:05,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619391624] [2020-07-19 20:58:05,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 20:58:05,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:05,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 20:58:05,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-19 20:58:05,917 INFO L87 Difference]: Start difference. First operand 337 states and 385 transitions. Second operand 12 states. [2020-07-19 20:58:06,497 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:06,748 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:06,992 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:07,654 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:07,899 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:08,135 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:09,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:09,280 INFO L93 Difference]: Finished difference Result 769 states and 975 transitions. [2020-07-19 20:58:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 20:58:09,281 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-07-19 20:58:09,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:09,284 INFO L225 Difference]: With dead ends: 769 [2020-07-19 20:58:09,284 INFO L226 Difference]: Without dead ends: 460 [2020-07-19 20:58:09,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-19 20:58:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-07-19 20:58:09,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 345. [2020-07-19 20:58:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-19 20:58:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-07-19 20:58:09,344 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 99 [2020-07-19 20:58:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:09,345 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-07-19 20:58:09,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 20:58:09,345 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-07-19 20:58:09,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-19 20:58:09,347 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:09,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:09,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 20:58:09,347 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:09,348 INFO L82 PathProgramCache]: Analyzing trace with hash -151261931, now seen corresponding path program 1 times [2020-07-19 20:58:09,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:09,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426969216] [2020-07-19 20:58:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,605 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 20:58:09,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426969216] [2020-07-19 20:58:09,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:09,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:58:09,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956029674] [2020-07-19 20:58:09,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:58:09,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:09,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:58:09,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:58:09,732 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 8 states. [2020-07-19 20:58:10,642 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:11,255 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:13,393 INFO L93 Difference]: Finished difference Result 1097 states and 1430 transitions. [2020-07-19 20:58:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:58:13,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-07-19 20:58:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:13,399 INFO L225 Difference]: With dead ends: 1097 [2020-07-19 20:58:13,399 INFO L226 Difference]: Without dead ends: 780 [2020-07-19 20:58:13,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:58:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-07-19 20:58:13,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 635. [2020-07-19 20:58:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-07-19 20:58:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 745 transitions. [2020-07-19 20:58:13,538 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 745 transitions. Word has length 99 [2020-07-19 20:58:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:13,538 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 745 transitions. [2020-07-19 20:58:13,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:58:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 745 transitions. [2020-07-19 20:58:13,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-19 20:58:13,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:13,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:13,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 20:58:13,541 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:13,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:13,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1889082245, now seen corresponding path program 1 times [2020-07-19 20:58:13,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:13,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240267617] [2020-07-19 20:58:13,542 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,806 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 20:58:14,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240267617] [2020-07-19 20:58:14,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643318101] [2020-07-19 20:58:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 20:58:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:14,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-19 20:58:14,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 20:58:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:58:14,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 20:58:14,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2020-07-19 20:58:14,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908551622] [2020-07-19 20:58:14,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:58:14,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:14,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:58:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:58:14,616 INFO L87 Difference]: Start difference. First operand 635 states and 745 transitions. Second operand 8 states. [2020-07-19 20:58:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:15,203 INFO L93 Difference]: Finished difference Result 1209 states and 1427 transitions. [2020-07-19 20:58:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 20:58:15,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-07-19 20:58:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:15,209 INFO L225 Difference]: With dead ends: 1209 [2020-07-19 20:58:15,209 INFO L226 Difference]: Without dead ends: 602 [2020-07-19 20:58:15,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:58:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-19 20:58:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2020-07-19 20:58:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-07-19 20:58:15,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 692 transitions. [2020-07-19 20:58:15,482 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 692 transitions. Word has length 103 [2020-07-19 20:58:15,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:15,483 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 692 transitions. [2020-07-19 20:58:15,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:58:15,484 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 692 transitions. [2020-07-19 20:58:15,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-19 20:58:15,494 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:15,495 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:15,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 20:58:15,710 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:15,711 INFO L82 PathProgramCache]: Analyzing trace with hash -75649928, now seen corresponding path program 1 times [2020-07-19 20:58:15,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:15,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115062649] [2020-07-19 20:58:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,116 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-19 20:58:16,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115062649] [2020-07-19 20:58:16,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251765769] [2020-07-19 20:58:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 20:58:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:16,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 20:58:16,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 20:58:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 20:58:16,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 20:58:16,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2020-07-19 20:58:16,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143110830] [2020-07-19 20:58:16,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 20:58:16,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:16,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 20:58:16,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:58:16,555 INFO L87 Difference]: Start difference. First operand 602 states and 692 transitions. Second operand 3 states. [2020-07-19 20:58:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:16,809 INFO L93 Difference]: Finished difference Result 910 states and 1065 transitions. [2020-07-19 20:58:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 20:58:16,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-19 20:58:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:16,817 INFO L225 Difference]: With dead ends: 910 [2020-07-19 20:58:16,818 INFO L226 Difference]: Without dead ends: 907 [2020-07-19 20:58:16,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:58:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-19 20:58:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 670. [2020-07-19 20:58:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-07-19 20:58:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 784 transitions. [2020-07-19 20:58:17,024 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 784 transitions. Word has length 139 [2020-07-19 20:58:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:17,027 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 784 transitions. [2020-07-19 20:58:17,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 20:58:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 784 transitions. [2020-07-19 20:58:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-19 20:58:17,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:17,031 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:58:17,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 20:58:17,246 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:17,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash -867778846, now seen corresponding path program 1 times [2020-07-19 20:58:17,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:17,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811782226] [2020-07-19 20:58:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5304b593 [2020-07-19 20:58:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:17,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:17,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:17,604 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:58:17,604 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:58:17,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-19 20:58:17,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:58:17 BoogieIcfgContainer [2020-07-19 20:58:17,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:58:17,873 INFO L168 Benchmark]: Toolchain (without parser) took 35636.19 ms. Allocated memory was 137.9 MB in the beginning and 648.5 MB in the end (delta: 510.7 MB). Free memory was 99.6 MB in the beginning and 81.5 MB in the end (delta: 18.1 MB). Peak memory consumption was 528.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,879 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.12 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 170.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,881 INFO L168 Benchmark]: Boogie Preprocessor took 113.79 ms. Allocated memory is still 201.9 MB. Free memory was 170.9 MB in the beginning and 166.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,883 INFO L168 Benchmark]: RCFGBuilder took 1241.55 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 166.2 MB in the beginning and 196.2 MB in the end (delta: -30.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,884 INFO L168 Benchmark]: TraceAbstraction took 33668.38 ms. Allocated memory was 231.2 MB in the beginning and 648.5 MB in the end (delta: 417.3 MB). Free memory was 196.2 MB in the beginning and 81.5 MB in the end (delta: 114.7 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:17,893 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.12 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 170.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.79 ms. Allocated memory is still 201.9 MB. Free memory was 170.9 MB in the beginning and 166.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.55 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 166.2 MB in the beginning and 196.2 MB in the end (delta: -30.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33668.38 ms. Allocated memory was 231.2 MB in the beginning and 648.5 MB in the end (delta: 417.3 MB). Free memory was 196.2 MB in the beginning and 81.5 MB in the end (delta: 114.7 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 844]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L486] int pumpRunning = 0; [L487] int systemActive = 1; [L666] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L850] int waterLevel = 1; [L851] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=177, \old(head)=163, \old(methAndRunningLastTime)=168, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L823] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L734] int retValue_acc ; [L737] retValue_acc = 1 [L738] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L824] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L828] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L829] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int splverifierCounter ; [L413] int tmp ; [L414] int tmp___0 ; [L415] int tmp___1 ; [L416] int tmp___2 ; [L419] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L433] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] COND TRUE waterLevel < 2 [L869] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L526] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] int retValue_acc ; [L639] int tmp ; [L640] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L930] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L933] COND FALSE !(waterLevel < 2) [L937] retValue_acc = 0 [L938] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L644] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] tmp = isHighWaterSensorDry() [L646] COND FALSE !(\read(tmp)) [L649] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L651] retValue_acc = tmp___0 [L652] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L528] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] tmp = isHighWaterLevel() [L530] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L532] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] retValue_acc = isMethaneLevelCritical() [L588] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L561] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp = isMethaneAlarm() [L563] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L567] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L567] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L532] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] tmp = isMethaneLevelCritical() [L683] COND FALSE !(\read(tmp)) [L699] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L509] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L466] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L443] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND FALSE !(\read(methaneLevelCritical)) [L883] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L443] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L494] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L496] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L526] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L541] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L685] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L685] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L688] COND FALSE !(\read(methAndRunningLastTime)) [L693] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L509] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L526] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L541] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L685] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L685] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L688] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L690] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L844] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.3s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1428 SDtfs, 2255 SDslu, 1949 SDs, 0 SdLazy, 5625 SolverSat, 1471 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 717 GetRequests, 556 SyntacticMatches, 3 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=670occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 947 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1350 NumberOfCodeBlocks, 1350 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1155 ConstructedInterpolants, 0 QuantifiedInterpolants, 362777 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1704 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 73/77 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...