/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:46:57,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:46:57,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:46:57,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:46:57,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:46:57,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:46:57,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:46:57,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:46:57,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:46:57,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:46:57,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:46:57,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:46:57,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:46:57,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:46:57,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:46:57,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:46:57,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:46:57,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:46:57,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:46:57,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:46:57,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:46:57,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:46:57,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:46:57,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:46:57,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:46:57,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:46:57,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:46:57,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:46:57,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:46:57,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:46:57,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:46:57,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:46:57,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:46:57,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:46:57,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:46:57,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:46:57,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:46:57,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:46:57,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:46:57,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:46:57,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:46:57,141 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 [2020-07-07 10:46:57,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:46:57,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:46:57,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:46:57,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:46:57,166 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:46:57,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:46:57,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:46:57,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:46:57,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:46:57,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:46:57,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:46:57,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:46:57,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:46:57,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:46:57,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:46:57,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:46:57,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:46:57,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:46:57,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:46:57,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:46:57,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:46:57,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:57,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:46:57,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:46:57,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:46:57,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:46:57,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:46:57,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:46:57,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:46:57,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:46:57,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:46:57,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:46:57,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:46:57,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:46:57,452 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:46:57,453 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-07-07 10:46:57,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec65c9f2/e0f53aba4b7842d4b34068cb41ef10b9/FLAG04cc12a2b [2020-07-07 10:46:58,036 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:46:58,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-07-07 10:46:58,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec65c9f2/e0f53aba4b7842d4b34068cb41ef10b9/FLAG04cc12a2b [2020-07-07 10:46:58,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec65c9f2/e0f53aba4b7842d4b34068cb41ef10b9 [2020-07-07 10:46:58,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:46:58,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:46:58,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:58,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:46:58,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:46:58,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:58" (1/1) ... [2020-07-07 10:46:58,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63808dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:58, skipping insertion in model container [2020-07-07 10:46:58,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:58" (1/1) ... [2020-07-07 10:46:58,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:46:58,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:46:58,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:58,929 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:46:59,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:59,056 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:46:59,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59 WrapperNode [2020-07-07 10:46:59,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:59,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:46:59,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:46:59,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:46:59,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (1/1) ... [2020-07-07 10:46:59,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:46:59,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:46:59,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:46:59,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:46:59,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (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 [2020-07-07 10:46:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:46:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:46:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:46:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:46:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:46:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:46:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:46:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:46:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:46:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:46:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:46:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:46:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:46:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:46:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:46:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:46:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:46:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:46:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:46:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:46:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:46:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:46:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:46:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:46:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:46:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:46:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:46:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:46:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:46:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:47:00,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:47:00,304 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:47:00,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:00 BoogieIcfgContainer [2020-07-07 10:47:00,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:47:00,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:47:00,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:47:00,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:47:00,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:46:58" (1/3) ... [2020-07-07 10:47:00,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:00, skipping insertion in model container [2020-07-07 10:47:00,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:59" (2/3) ... [2020-07-07 10:47:00,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:00, skipping insertion in model container [2020-07-07 10:47:00,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:00" (3/3) ... [2020-07-07 10:47:00,319 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-07-07 10:47:00,330 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:47:00,340 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:47:00,355 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:47:00,388 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:47:00,388 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:47:00,388 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:47:00,388 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:47:00,389 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:47:00,389 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:47:00,389 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:47:00,389 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:47:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-07-07 10:47:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:47:00,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:00,427 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] [2020-07-07 10:47:00,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:00,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:00,434 INFO L82 PathProgramCache]: Analyzing trace with hash 580316159, now seen corresponding path program 1 times [2020-07-07 10:47:00,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:00,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749904711] [2020-07-07 10:47:00,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,117 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:01,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749904711] [2020-07-07 10:47:01,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:01,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:47:01,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795269982] [2020-07-07 10:47:01,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:47:01,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:01,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:47:01,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:01,260 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2020-07-07 10:47:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:02,569 INFO L93 Difference]: Finished difference Result 318 states and 412 transitions. [2020-07-07 10:47:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:47:02,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:47:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:02,586 INFO L225 Difference]: With dead ends: 318 [2020-07-07 10:47:02,586 INFO L226 Difference]: Without dead ends: 172 [2020-07-07 10:47:02,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:02,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-07-07 10:47:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 137. [2020-07-07 10:47:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-07 10:47:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2020-07-07 10:47:02,695 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 46 [2020-07-07 10:47:02,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:02,696 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2020-07-07 10:47:02,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:47:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2020-07-07 10:47:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:47:02,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:02,700 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] [2020-07-07 10:47:02,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:47:02,700 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:02,701 INFO L82 PathProgramCache]: Analyzing trace with hash -2039927443, now seen corresponding path program 1 times [2020-07-07 10:47:02,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:02,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843118631] [2020-07-07 10:47:02,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,086 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:03,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843118631] [2020-07-07 10:47:03,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:03,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:47:03,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513120628] [2020-07-07 10:47:03,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:47:03,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:03,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:47:03,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:47:03,132 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 4 states. [2020-07-07 10:47:03,609 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:04,596 INFO L93 Difference]: Finished difference Result 247 states and 299 transitions. [2020-07-07 10:47:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:04,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:47:04,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:04,600 INFO L225 Difference]: With dead ends: 247 [2020-07-07 10:47:04,600 INFO L226 Difference]: Without dead ends: 156 [2020-07-07 10:47:04,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:47:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-07 10:47:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2020-07-07 10:47:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-07 10:47:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-07-07 10:47:04,641 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 47 [2020-07-07 10:47:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:04,642 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-07-07 10:47:04,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:47:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-07-07 10:47:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:47:04,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:04,644 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] [2020-07-07 10:47:04,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:47:04,645 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:04,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1891987703, now seen corresponding path program 1 times [2020-07-07 10:47:04,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:04,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113569534] [2020-07-07 10:47:04,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,096 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:05,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113569534] [2020-07-07 10:47:05,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:05,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:47:05,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263713821] [2020-07-07 10:47:05,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:05,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:05,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:05,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:47:05,167 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 8 states. [2020-07-07 10:47:05,578 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:05,927 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:06,252 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:06,527 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:07,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:07,877 INFO L93 Difference]: Finished difference Result 260 states and 317 transitions. [2020-07-07 10:47:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:47:07,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-07 10:47:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:07,883 INFO L225 Difference]: With dead ends: 260 [2020-07-07 10:47:07,883 INFO L226 Difference]: Without dead ends: 156 [2020-07-07 10:47:07,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-07 10:47:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2020-07-07 10:47:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-07 10:47:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2020-07-07 10:47:07,925 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 52 [2020-07-07 10:47:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:07,925 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2020-07-07 10:47:07,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2020-07-07 10:47:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-07 10:47:07,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:07,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:07,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:47:07,929 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:07,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:07,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1745786735, now seen corresponding path program 1 times [2020-07-07 10:47:07,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:07,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166007186] [2020-07-07 10:47:07,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,213 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:08,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166007186] [2020-07-07 10:47:08,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:08,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:47:08,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498356226] [2020-07-07 10:47:08,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:08,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:08,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:08,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:47:08,286 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 6 states. [2020-07-07 10:47:08,650 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:10,022 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:10,740 INFO L93 Difference]: Finished difference Result 365 states and 446 transitions. [2020-07-07 10:47:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:47:10,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-07-07 10:47:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:10,746 INFO L225 Difference]: With dead ends: 365 [2020-07-07 10:47:10,746 INFO L226 Difference]: Without dead ends: 261 [2020-07-07 10:47:10,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-07-07 10:47:10,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 218. [2020-07-07 10:47:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-07 10:47:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2020-07-07 10:47:10,798 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 65 [2020-07-07 10:47:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:10,799 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2020-07-07 10:47:10,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2020-07-07 10:47:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-07 10:47:10,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:10,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:10,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:47:10,802 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:10,802 INFO L82 PathProgramCache]: Analyzing trace with hash 189412453, now seen corresponding path program 1 times [2020-07-07 10:47:10,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:10,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694458223] [2020-07-07 10:47:10,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,114 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:11,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694458223] [2020-07-07 10:47:11,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:11,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 10:47:11,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820920295] [2020-07-07 10:47:11,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 10:47:11,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:11,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 10:47:11,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:11,222 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand 10 states. [2020-07-07 10:47:11,756 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:12,061 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:12,328 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:13,027 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:13,330 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:13,628 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:14,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:14,658 INFO L93 Difference]: Finished difference Result 456 states and 547 transitions. [2020-07-07 10:47:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:47:14,659 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-07-07 10:47:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:14,662 INFO L225 Difference]: With dead ends: 456 [2020-07-07 10:47:14,662 INFO L226 Difference]: Without dead ends: 262 [2020-07-07 10:47:14,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-07-07 10:47:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 222. [2020-07-07 10:47:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-07-07 10:47:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 249 transitions. [2020-07-07 10:47:14,709 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 249 transitions. Word has length 79 [2020-07-07 10:47:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:14,710 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 249 transitions. [2020-07-07 10:47:14,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 10:47:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 249 transitions. [2020-07-07 10:47:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-07 10:47:14,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:14,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:14,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:47:14,712 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:14,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1196790941, now seen corresponding path program 1 times [2020-07-07 10:47:14,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:14,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803773871] [2020-07-07 10:47:14,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,055 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:15,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803773871] [2020-07-07 10:47:15,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:15,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:47:15,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370205114] [2020-07-07 10:47:15,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:15,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:15,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:15,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:15,208 INFO L87 Difference]: Start difference. First operand 222 states and 249 transitions. Second operand 12 states. [2020-07-07 10:47:15,730 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:16,096 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:16,396 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:16,669 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:17,268 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:18,356 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:18,715 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:19,023 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:19,320 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:19,727 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:20,052 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:21,511 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:21,977 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:22,700 INFO L93 Difference]: Finished difference Result 783 states and 988 transitions. [2020-07-07 10:47:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:47:22,701 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-07-07 10:47:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:22,706 INFO L225 Difference]: With dead ends: 783 [2020-07-07 10:47:22,707 INFO L226 Difference]: Without dead ends: 585 [2020-07-07 10:47:22,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:47:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-07 10:47:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 523. [2020-07-07 10:47:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-07 10:47:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 603 transitions. [2020-07-07 10:47:22,818 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 603 transitions. Word has length 79 [2020-07-07 10:47:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:22,819 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 603 transitions. [2020-07-07 10:47:22,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 603 transitions. [2020-07-07 10:47:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 10:47:22,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:22,824 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-07 10:47:22,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:47:22,824 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:22,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1143243225, now seen corresponding path program 1 times [2020-07-07 10:47:22,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:22,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846135479] [2020-07-07 10:47:22,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,131 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-07 10:47:23,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846135479] [2020-07-07 10:47:23,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411826840] [2020-07-07 10:47:23,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-07 10:47:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:23,697 INFO L264 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 10:47:23,718 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:23,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:23,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-07 10:47:23,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774676399] [2020-07-07 10:47:23,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:23,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:23,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:23,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:47:23,882 INFO L87 Difference]: Start difference. First operand 523 states and 603 transitions. Second operand 8 states. [2020-07-07 10:47:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:25,454 INFO L93 Difference]: Finished difference Result 1318 states and 1675 transitions. [2020-07-07 10:47:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 10:47:25,455 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2020-07-07 10:47:25,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:25,465 INFO L225 Difference]: With dead ends: 1318 [2020-07-07 10:47:25,465 INFO L226 Difference]: Without dead ends: 944 [2020-07-07 10:47:25,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-07 10:47:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2020-07-07 10:47:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 863. [2020-07-07 10:47:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-07-07 10:47:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1038 transitions. [2020-07-07 10:47:25,664 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1038 transitions. Word has length 154 [2020-07-07 10:47:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:25,665 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 1038 transitions. [2020-07-07 10:47:25,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1038 transitions. [2020-07-07 10:47:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 10:47:25,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:25,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:25,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-07 10:47:25,882 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:25,883 INFO L82 PathProgramCache]: Analyzing trace with hash 677704555, now seen corresponding path program 1 times [2020-07-07 10:47:25,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:25,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203097519] [2020-07-07 10:47:25,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,214 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 10:47:26,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203097519] [2020-07-07 10:47:26,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652910812] [2020-07-07 10:47:26,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-07 10:47:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:26,721 INFO L264 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:26,737 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-07 10:47:26,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:26,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-07 10:47:26,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761918834] [2020-07-07 10:47:26,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:26,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:26,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:26,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:26,878 INFO L87 Difference]: Start difference. First operand 863 states and 1038 transitions. Second operand 6 states. [2020-07-07 10:47:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:27,338 INFO L93 Difference]: Finished difference Result 884 states and 1061 transitions. [2020-07-07 10:47:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:47:27,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-07 10:47:27,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:27,347 INFO L225 Difference]: With dead ends: 884 [2020-07-07 10:47:27,347 INFO L226 Difference]: Without dead ends: 881 [2020-07-07 10:47:27,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-07-07 10:47:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 863. [2020-07-07 10:47:27,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-07-07 10:47:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1034 transitions. [2020-07-07 10:47:27,532 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1034 transitions. Word has length 143 [2020-07-07 10:47:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:27,533 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 1034 transitions. [2020-07-07 10:47:27,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:27,533 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1034 transitions. [2020-07-07 10:47:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-07 10:47:27,536 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:27,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:27,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:27,752 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:27,753 INFO L82 PathProgramCache]: Analyzing trace with hash 152009981, now seen corresponding path program 1 times [2020-07-07 10:47:27,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:27,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854513241] [2020-07-07 10:47:27,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,088 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-07 10:47:28,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854513241] [2020-07-07 10:47:28,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265207659] [2020-07-07 10:47:28,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,502 INFO L264 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:28,506 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-07 10:47:28,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:28,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:28,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84131795] [2020-07-07 10:47:28,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:28,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:28,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:28,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:28,552 INFO L87 Difference]: Start difference. First operand 863 states and 1034 transitions. Second operand 6 states. [2020-07-07 10:47:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:28,775 INFO L93 Difference]: Finished difference Result 1540 states and 1909 transitions. [2020-07-07 10:47:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:28,776 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2020-07-07 10:47:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:28,781 INFO L225 Difference]: With dead ends: 1540 [2020-07-07 10:47:28,781 INFO L226 Difference]: Without dead ends: 701 [2020-07-07 10:47:28,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-07-07 10:47:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 699. [2020-07-07 10:47:28,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-07 10:47:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 831 transitions. [2020-07-07 10:47:28,933 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 831 transitions. Word has length 147 [2020-07-07 10:47:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:28,933 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 831 transitions. [2020-07-07 10:47:28,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 831 transitions. [2020-07-07 10:47:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-07 10:47:28,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:28,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:29,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:29,150 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:29,150 INFO L82 PathProgramCache]: Analyzing trace with hash -671566746, now seen corresponding path program 1 times [2020-07-07 10:47:29,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:29,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323872775] [2020-07-07 10:47:29,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,454 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-07 10:47:29,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323872775] [2020-07-07 10:47:29,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020703092] [2020-07-07 10:47:29,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,882 INFO L264 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:29,886 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:29,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:29,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-07 10:47:29,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300562967] [2020-07-07 10:47:29,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:47:29,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:29,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:47:29,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:29,954 INFO L87 Difference]: Start difference. First operand 699 states and 831 transitions. Second operand 14 states. [2020-07-07 10:47:30,357 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:31,009 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:32,239 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:32,552 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:32,851 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:33,371 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:33,690 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:33,984 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:35,403 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:36,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:36,628 INFO L93 Difference]: Finished difference Result 1410 states and 1772 transitions. [2020-07-07 10:47:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 10:47:36,629 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2020-07-07 10:47:36,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:36,636 INFO L225 Difference]: With dead ends: 1410 [2020-07-07 10:47:36,636 INFO L226 Difference]: Without dead ends: 798 [2020-07-07 10:47:36,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 206 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=319, Invalid=803, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 10:47:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-07 10:47:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 681. [2020-07-07 10:47:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-07-07 10:47:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 809 transitions. [2020-07-07 10:47:36,782 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 809 transitions. Word has length 151 [2020-07-07 10:47:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:36,783 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 809 transitions. [2020-07-07 10:47:36,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:47:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 809 transitions. [2020-07-07 10:47:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-07 10:47:36,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:36,786 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:36,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:37,000 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:37,001 INFO L82 PathProgramCache]: Analyzing trace with hash -939199605, now seen corresponding path program 2 times [2020-07-07 10:47:37,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:37,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559018880] [2020-07-07 10:47:37,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:37,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:47:37,547 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:47:37,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 10:47:37,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:47:37 BoogieIcfgContainer [2020-07-07 10:47:37,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:47:37,934 INFO L168 Benchmark]: Toolchain (without parser) took 39579.98 ms. Allocated memory was 138.4 MB in the beginning and 701.0 MB in the end (delta: 562.6 MB). Free memory was 102.5 MB in the beginning and 648.0 MB in the end (delta: -545.5 MB). Peak memory consumption was 589.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,939 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.93 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 171.8 MB in the end (delta: -69.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,941 INFO L168 Benchmark]: Boogie Preprocessor took 116.80 ms. Allocated memory is still 202.9 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,942 INFO L168 Benchmark]: RCFGBuilder took 1135.95 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 197.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,945 INFO L168 Benchmark]: TraceAbstraction took 37619.56 ms. Allocated memory was 235.4 MB in the beginning and 701.0 MB in the end (delta: 465.6 MB). Free memory was 196.0 MB in the beginning and 648.0 MB in the end (delta: -452.0 MB). Peak memory consumption was 585.7 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:37,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.93 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 171.8 MB in the end (delta: -69.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.80 ms. Allocated memory is still 202.9 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1135.95 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 197.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37619.56 ms. Allocated memory was 235.4 MB in the beginning and 701.0 MB in the end (delta: 465.6 MB). Free memory was 196.0 MB in the beginning and 648.0 MB in the end (delta: -452.0 MB). Peak memory consumption was 585.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L874] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] COND TRUE waterLevel < 2 [L777] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L874] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L737] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L596] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L600] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp = isMethaneAlarm() [L656] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L660] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L600] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L635] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L907] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L862] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L864] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L907] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L862] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L157] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L161] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 27.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1434 SDtfs, 2634 SDslu, 2221 SDs, 0 SdLazy, 6335 SolverSat, 1691 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1062 GetRequests, 918 SyntacticMatches, 8 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=863occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 454 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1761 NumberOfCodeBlocks, 1761 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1544 ConstructedInterpolants, 0 QuantifiedInterpolants, 499403 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3558 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 267/310 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...