/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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:57:40,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:57:40,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:57:40,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:57:40,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:57:40,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:57:40,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:57:40,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:57:40,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:57:40,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:57:40,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:57:40,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:57:40,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:57:40,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:57:40,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:57:40,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:57:40,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:57:40,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:57:40,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:57:40,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:57:40,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:57:40,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:57:40,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:57:40,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:57:40,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:57:40,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:57:40,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:57:40,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:57:40,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:57:40,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:57:40,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:57:40,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:57:40,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:57:40,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:57:40,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:57:40,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:57:40,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:57:40,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:57:40,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:57:40,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:57:40,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:57:40,111 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 20:57:40,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:57:40,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:57:40,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:57:40,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:57:40,127 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:57:40,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:57:40,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:57:40,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:57:40,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:57:40,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:57:40,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:57:40,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:57:40,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:57:40,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:57:40,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:57:40,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:57:40,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:57:40,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:57:40,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:57:40,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:57:40,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:57:40,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:57:40,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:57:40,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:57:40,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:57:40,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:57:40,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:57:40,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:57:40,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:57:40,133 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 20:57:40,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:57:40,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:57:40,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:57:40,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:57:40,432 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:57:40,434 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-19 20:57:40,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f55a34a/ecf19b6687844744946df118ddeb6d6c/FLAGfbefa6ca6 [2020-07-19 20:57:41,031 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:57:41,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-19 20:57:41,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f55a34a/ecf19b6687844744946df118ddeb6d6c/FLAGfbefa6ca6 [2020-07-19 20:57:41,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f55a34a/ecf19b6687844744946df118ddeb6d6c [2020-07-19 20:57:41,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:57:41,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:57:41,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:41,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:57:41,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:57:41,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:41,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35329935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41, skipping insertion in model container [2020-07-19 20:57:41,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:41,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:57:41,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:57:41,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:41,845 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:57:41,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:41,988 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:57:41,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41 WrapperNode [2020-07-19 20:57:41,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:41,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:57:41,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:57:41,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:57:42,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (1/1) ... [2020-07-19 20:57:42,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:57:42,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:57:42,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:57:42,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:57:42,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (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 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:57:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:57:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:57:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:57:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:57:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:57:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:57:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:57:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:57:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:57:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:57:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:57:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:57:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:57:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:57:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:57:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:57:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:57:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:57:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:57:43,225 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:57:43,225 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:57:43,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:43 BoogieIcfgContainer [2020-07-19 20:57:43,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:57:43,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:57:43,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:57:43,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:57:43,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:57:41" (1/3) ... [2020-07-19 20:57:43,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46aa851a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:43, skipping insertion in model container [2020-07-19 20:57:43,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:41" (2/3) ... [2020-07-19 20:57:43,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46aa851a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:43, skipping insertion in model container [2020-07-19 20:57:43,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:43" (3/3) ... [2020-07-19 20:57:43,244 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-07-19 20:57:43,254 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:57:43,263 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:57:43,274 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:57:43,294 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:57:43,294 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:57:43,294 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:57:43,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:57:43,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:57:43,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:57:43,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:57:43,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:57:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-07-19 20:57:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 20:57:43,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:43,327 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 20:57:43,327 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1966863296, now seen corresponding path program 1 times [2020-07-19 20:57:43,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:43,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033348915] [2020-07-19 20:57:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:43,971 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:44,122 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 20:57:44,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033348915] [2020-07-19 20:57:44,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:44,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:57:44,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347803852] [2020-07-19 20:57:44,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:57:44,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:57:44,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:44,162 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 4 states. [2020-07-19 20:57:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:45,135 INFO L93 Difference]: Finished difference Result 274 states and 358 transitions. [2020-07-19 20:57:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 20:57:45,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-19 20:57:45,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:45,151 INFO L225 Difference]: With dead ends: 274 [2020-07-19 20:57:45,151 INFO L226 Difference]: Without dead ends: 153 [2020-07-19 20:57:45,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:45,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-19 20:57:45,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 122. [2020-07-19 20:57:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-19 20:57:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-07-19 20:57:45,238 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 51 [2020-07-19 20:57:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:45,242 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-07-19 20:57:45,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:57:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-07-19 20:57:45,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:57:45,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:45,248 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 20:57:45,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:57:45,248 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:45,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:45,249 INFO L82 PathProgramCache]: Analyzing trace with hash 335710898, now seen corresponding path program 1 times [2020-07-19 20:57:45,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:45,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504604500] [2020-07-19 20:57:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,561 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:45,611 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 20:57:45,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504604500] [2020-07-19 20:57:45,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:45,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 20:57:45,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013893997] [2020-07-19 20:57:45,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 20:57:45,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:45,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 20:57:45,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:57:45,615 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 5 states. [2020-07-19 20:57:46,071 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:46,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:46,827 INFO L93 Difference]: Finished difference Result 219 states and 269 transitions. [2020-07-19 20:57:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 20:57:46,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-19 20:57:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:46,830 INFO L225 Difference]: With dead ends: 219 [2020-07-19 20:57:46,830 INFO L226 Difference]: Without dead ends: 143 [2020-07-19 20:57:46,832 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 20:57:46,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-19 20:57:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 113. [2020-07-19 20:57:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-19 20:57:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2020-07-19 20:57:46,869 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 52 [2020-07-19 20:57:46,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:46,869 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2020-07-19 20:57:46,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 20:57:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2020-07-19 20:57:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 20:57:46,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:46,872 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] [2020-07-19 20:57:46,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:57:46,872 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:46,873 INFO L82 PathProgramCache]: Analyzing trace with hash 727255979, now seen corresponding path program 1 times [2020-07-19 20:57:46,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:46,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970331217] [2020-07-19 20:57:46,873 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,183 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:47,282 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 20:57:47,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970331217] [2020-07-19 20:57:47,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:47,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:47,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294913602] [2020-07-19 20:57:47,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:47,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:47,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:47,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:47,285 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 9 states. [2020-07-19 20:57:47,659 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:47,940 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:48,177 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:48,430 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:49,488 INFO L93 Difference]: Finished difference Result 228 states and 284 transitions. [2020-07-19 20:57:49,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 20:57:49,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-07-19 20:57:49,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:49,493 INFO L225 Difference]: With dead ends: 228 [2020-07-19 20:57:49,493 INFO L226 Difference]: Without dead ends: 143 [2020-07-19 20:57:49,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:49,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-19 20:57:49,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 113. [2020-07-19 20:57:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-19 20:57:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-07-19 20:57:49,544 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 56 [2020-07-19 20:57:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:49,544 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-07-19 20:57:49,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-07-19 20:57:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-19 20:57:49,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:49,547 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] [2020-07-19 20:57:49,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:57:49,548 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:49,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:49,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1730792410, now seen corresponding path program 1 times [2020-07-19 20:57:49,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:49,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043232247] [2020-07-19 20:57:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,814 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:49,937 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 20:57:49,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043232247] [2020-07-19 20:57:49,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:49,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 20:57:49,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789755407] [2020-07-19 20:57:49,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 20:57:49,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:49,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 20:57:49,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:49,939 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 7 states. [2020-07-19 20:57:50,278 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:51,379 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:51,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:51,967 INFO L93 Difference]: Finished difference Result 313 states and 394 transitions. [2020-07-19 20:57:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:51,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-19 20:57:51,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:51,974 INFO L225 Difference]: With dead ends: 313 [2020-07-19 20:57:51,974 INFO L226 Difference]: Without dead ends: 228 [2020-07-19 20:57:51,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:57:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-07-19 20:57:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 182. [2020-07-19 20:57:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-19 20:57:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 211 transitions. [2020-07-19 20:57:52,030 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 211 transitions. Word has length 64 [2020-07-19 20:57:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:52,030 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 211 transitions. [2020-07-19 20:57:52,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 20:57:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 211 transitions. [2020-07-19 20:57:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-19 20:57:52,032 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:52,032 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] [2020-07-19 20:57:52,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:57:52,033 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:52,033 INFO L82 PathProgramCache]: Analyzing trace with hash 529777432, now seen corresponding path program 1 times [2020-07-19 20:57:52,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:52,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450266049] [2020-07-19 20:57:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,298 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:52,426 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 20:57:52,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450266049] [2020-07-19 20:57:52,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:52,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:52,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404690146] [2020-07-19 20:57:52,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:52,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:52,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:52,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:52,429 INFO L87 Difference]: Start difference. First operand 182 states and 211 transitions. Second operand 9 states. [2020-07-19 20:57:52,788 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:53,758 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:54,064 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:54,547 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:54,793 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:55,579 INFO L93 Difference]: Finished difference Result 537 states and 684 transitions. [2020-07-19 20:57:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 20:57:55,581 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-19 20:57:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:55,585 INFO L225 Difference]: With dead ends: 537 [2020-07-19 20:57:55,585 INFO L226 Difference]: Without dead ends: 383 [2020-07-19 20:57:55,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-19 20:57:55,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-07-19 20:57:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 312. [2020-07-19 20:57:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-07-19 20:57:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 362 transitions. [2020-07-19 20:57:55,667 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 362 transitions. Word has length 78 [2020-07-19 20:57:55,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:55,668 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 362 transitions. [2020-07-19 20:57:55,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 362 transitions. [2020-07-19 20:57:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-19 20:57:55,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:55,670 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] [2020-07-19 20:57:55,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:57:55,670 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:55,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:55,671 INFO L82 PathProgramCache]: Analyzing trace with hash 281843316, now seen corresponding path program 1 times [2020-07-19 20:57:55,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:55,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066892217] [2020-07-19 20:57:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,962 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:56,164 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 20:57:56,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066892217] [2020-07-19 20:57:56,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:56,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:56,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395952031] [2020-07-19 20:57:56,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:56,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:56,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:56,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:56,168 INFO L87 Difference]: Start difference. First operand 312 states and 362 transitions. Second operand 10 states. [2020-07-19 20:57:56,647 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:57,729 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:58,572 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:58,809 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:59,055 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:59,331 INFO L93 Difference]: Finished difference Result 702 states and 877 transitions. [2020-07-19 20:57:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:57:59,331 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-07-19 20:57:59,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:59,336 INFO L225 Difference]: With dead ends: 702 [2020-07-19 20:57:59,336 INFO L226 Difference]: Without dead ends: 418 [2020-07-19 20:57:59,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-07-19 20:57:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-19 20:57:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 311. [2020-07-19 20:57:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-07-19 20:57:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 359 transitions. [2020-07-19 20:57:59,442 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 359 transitions. Word has length 82 [2020-07-19 20:57:59,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:59,443 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 359 transitions. [2020-07-19 20:57:59,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 359 transitions. [2020-07-19 20:57:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-19 20:57:59,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:59,446 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] [2020-07-19 20:57:59,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:57:59,447 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:59,447 INFO L82 PathProgramCache]: Analyzing trace with hash 131138833, now seen corresponding path program 1 times [2020-07-19 20:57:59,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:59,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640992759] [2020-07-19 20:57:59,448 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:57:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,665 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,788 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 20:57:59,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640992759] [2020-07-19 20:57:59,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:59,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:59,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899750061] [2020-07-19 20:57:59,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:59,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:59,790 INFO L87 Difference]: Start difference. First operand 311 states and 359 transitions. Second operand 10 states. [2020-07-19 20:58:00,670 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:58:00,910 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 20:58:01,162 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:01,392 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:02,299 INFO L93 Difference]: Finished difference Result 709 states and 905 transitions. [2020-07-19 20:58:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:58:02,300 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-07-19 20:58:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:02,304 INFO L225 Difference]: With dead ends: 709 [2020-07-19 20:58:02,305 INFO L226 Difference]: Without dead ends: 426 [2020-07-19 20:58:02,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:58:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-07-19 20:58:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 321. [2020-07-19 20:58:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-19 20:58:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 369 transitions. [2020-07-19 20:58:02,389 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 369 transitions. Word has length 98 [2020-07-19 20:58:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:02,390 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 369 transitions. [2020-07-19 20:58:02,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:58:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 369 transitions. [2020-07-19 20:58:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-19 20:58:02,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:02,392 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] [2020-07-19 20:58:02,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 20:58:02,393 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1918249009, now seen corresponding path program 1 times [2020-07-19 20:58:02,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:02,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765343659] [2020-07-19 20:58:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:58:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,656 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,732 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 20:58:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:02,819 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 20:58:02,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765343659] [2020-07-19 20:58:02,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:02,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 20:58:02,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867836354] [2020-07-19 20:58:02,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 20:58:02,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:02,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 20:58:02,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-19 20:58:02,824 INFO L87 Difference]: Start difference. First operand 321 states and 369 transitions. Second operand 12 states. [2020-07-19 20:58:03,280 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:03,508 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:03,729 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:04,336 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:04,587 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:04,834 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:05,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:05,860 INFO L93 Difference]: Finished difference Result 729 states and 927 transitions. [2020-07-19 20:58:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 20:58:05,861 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-07-19 20:58:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:05,864 INFO L225 Difference]: With dead ends: 729 [2020-07-19 20:58:05,864 INFO L226 Difference]: Without dead ends: 436 [2020-07-19 20:58:05,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-19 20:58:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-07-19 20:58:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 329. [2020-07-19 20:58:05,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-07-19 20:58:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2020-07-19 20:58:05,926 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 98 [2020-07-19 20:58:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:05,927 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2020-07-19 20:58:05,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 20:58:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2020-07-19 20:58:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-19 20:58:05,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:05,929 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] [2020-07-19 20:58:05,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 20:58:05,929 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:05,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:05,930 INFO L82 PathProgramCache]: Analyzing trace with hash -948667986, now seen corresponding path program 1 times [2020-07-19 20:58:05,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:05,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288415115] [2020-07-19 20:58:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:58:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,243 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:06,409 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 20:58:06,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288415115] [2020-07-19 20:58:06,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:06,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:58:06,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298228421] [2020-07-19 20:58:06,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:58:06,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:06,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:58:06,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:58:06,412 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 8 states. [2020-07-19 20:58:06,938 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:07,418 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:09,316 INFO L93 Difference]: Finished difference Result 1028 states and 1346 transitions. [2020-07-19 20:58:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 20:58:09,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-07-19 20:58:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:09,322 INFO L225 Difference]: With dead ends: 1028 [2020-07-19 20:58:09,322 INFO L226 Difference]: Without dead ends: 727 [2020-07-19 20:58:09,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-07-19 20:58:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2020-07-19 20:58:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 595. [2020-07-19 20:58:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-07-19 20:58:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 705 transitions. [2020-07-19 20:58:09,438 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 705 transitions. Word has length 98 [2020-07-19 20:58:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:09,440 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 705 transitions. [2020-07-19 20:58:09,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:58:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 705 transitions. [2020-07-19 20:58:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-19 20:58:09,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:09,442 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] [2020-07-19 20:58:09,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 20:58:09,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:09,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:09,443 INFO L82 PathProgramCache]: Analyzing trace with hash -944641720, now seen corresponding path program 1 times [2020-07-19 20:58:09,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:09,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784523114] [2020-07-19 20:58:09,444 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:58:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,766 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,101 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 20:58:10,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784523114] [2020-07-19 20:58:10,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477162742] [2020-07-19 20:58:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 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 20:58:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:10,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-19 20:58:10,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 20:58:10,689 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 20:58:10,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 20:58:10,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2020-07-19 20:58:10,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980354122] [2020-07-19 20:58:10,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:58:10,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:10,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:58:10,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:58:10,692 INFO L87 Difference]: Start difference. First operand 595 states and 705 transitions. Second operand 8 states. [2020-07-19 20:58:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:11,170 INFO L93 Difference]: Finished difference Result 1129 states and 1347 transitions. [2020-07-19 20:58:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 20:58:11,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-07-19 20:58:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:11,175 INFO L225 Difference]: With dead ends: 1129 [2020-07-19 20:58:11,175 INFO L226 Difference]: Without dead ends: 562 [2020-07-19 20:58:11,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2020-07-19 20:58:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-07-19 20:58:11,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-07-19 20:58:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-07-19 20:58:11,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 652 transitions. [2020-07-19 20:58:11,306 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 652 transitions. Word has length 102 [2020-07-19 20:58:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:11,306 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 652 transitions. [2020-07-19 20:58:11,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:58:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 652 transitions. [2020-07-19 20:58:11,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-19 20:58:11,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:11,311 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 20:58:11,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 20:58:11,524 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:11,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1654540536, now seen corresponding path program 1 times [2020-07-19 20:58:11,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:11,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597108590] [2020-07-19 20:58:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:58:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,833 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-19 20:58:11,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597108590] [2020-07-19 20:58:11,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350467909] [2020-07-19 20:58:11,971 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 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 20:58:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:12,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 20:58:12,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 20:58:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 20:58:12,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 20:58:12,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2020-07-19 20:58:12,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319219459] [2020-07-19 20:58:12,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 20:58:12,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 20:58:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:58:12,232 INFO L87 Difference]: Start difference. First operand 562 states and 652 transitions. Second operand 3 states. [2020-07-19 20:58:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:12,443 INFO L93 Difference]: Finished difference Result 854 states and 1009 transitions. [2020-07-19 20:58:12,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 20:58:12,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-19 20:58:12,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:12,449 INFO L225 Difference]: With dead ends: 854 [2020-07-19 20:58:12,449 INFO L226 Difference]: Without dead ends: 851 [2020-07-19 20:58:12,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:58:12,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-07-19 20:58:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 622. [2020-07-19 20:58:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-19 20:58:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 736 transitions. [2020-07-19 20:58:12,631 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 736 transitions. Word has length 137 [2020-07-19 20:58:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:12,633 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 736 transitions. [2020-07-19 20:58:12,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 20:58:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 736 transitions. [2020-07-19 20:58:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-19 20:58:12,637 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:12,637 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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 20:58:12,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 20:58:12,851 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:12,851 INFO L82 PathProgramCache]: Analyzing trace with hash -402984640, now seen corresponding path program 1 times [2020-07-19 20:58:12,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:12,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881755919] [2020-07-19 20:58:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e4134a7 [2020-07-19 20:58:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:12,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:12,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:13,219 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:58:13,220 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:58:13,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-19 20:58:13,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:58:13 BoogieIcfgContainer [2020-07-19 20:58:13,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:58:13,456 INFO L168 Benchmark]: Toolchain (without parser) took 32120.85 ms. Allocated memory was 145.2 MB in the beginning and 637.5 MB in the end (delta: 492.3 MB). Free memory was 101.7 MB in the beginning and 483.4 MB in the end (delta: -381.7 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,457 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.23 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,458 INFO L168 Benchmark]: Boogie Preprocessor took 91.70 ms. Allocated memory is still 201.9 MB. Free memory was 171.1 MB in the beginning and 166.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,459 INFO L168 Benchmark]: RCFGBuilder took 1154.19 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.8 MB in the beginning and 197.4 MB in the end (delta: -30.6 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,460 INFO L168 Benchmark]: TraceAbstraction took 30218.55 ms. Allocated memory was 233.8 MB in the beginning and 637.5 MB in the end (delta: 403.7 MB). Free memory was 197.4 MB in the beginning and 483.4 MB in the end (delta: -286.0 MB). Peak memory consumption was 117.7 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:13,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.23 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.70 ms. Allocated memory is still 201.9 MB. Free memory was 171.1 MB in the beginning and 166.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1154.19 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.8 MB in the beginning and 197.4 MB in the end (delta: -30.6 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30218.55 ms. Allocated memory was 233.8 MB in the beginning and 637.5 MB in the end (delta: 403.7 MB). Free memory was 197.4 MB in the beginning and 483.4 MB in the end (delta: -286.0 MB). Peak memory consumption was 117.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L43] int methAndRunningLastTime ; [L251] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int pumpRunning = 0; [L456] int systemActive = 1; [L628] int waterLevel = 1; [L629] int methaneLevelCritical = 0; [L835] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=173, \old(head)=177, \old(head)=162, \old(methAndRunningLastTime)=168, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int retValue_acc ; [L910] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L916] tmp = valid_product() [L918] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L920] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L921] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L745] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L646] COND TRUE waterLevel < 2 [L647] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] COND FALSE !(waterLevel < 2) [L715] retValue_acc = 0 [L716] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L612] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp = isHighWaterSensorDry() [L614] COND FALSE !(\read(tmp)) [L617] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L496] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] tmp = isHighWaterLevel() [L498] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L500] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L554] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] retValue_acc = isMethaneLevelCritical() [L556] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L529] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] tmp = isMethaneAlarm() [L531] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L535] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L535] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L500] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=2] [L755] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(methaneLevelCritical)) [L661] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L65] COND FALSE !(\read(methAndRunningLastTime)) [L70] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=1, waterLevel=1] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L65] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L67] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L830] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=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 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1370 SDtfs, 2192 SDslu, 1856 SDs, 0 SdLazy, 5233 SolverSat, 1309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 710 GetRequests, 550 SyntacticMatches, 3 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=622occurred 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: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 888 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1334 NumberOfCodeBlocks, 1334 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1142 ConstructedInterpolants, 0 QuantifiedInterpolants, 355431 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1662 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 71/75 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...