/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:42:18,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:42:18,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:42:18,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:42:18,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:42:18,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:42:18,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:42:18,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:42:18,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:42:18,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:42:18,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:42:18,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:42:18,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:42:18,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:42:18,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:42:18,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:42:18,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:42:18,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:42:18,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:42:18,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:42:18,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:42:18,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:42:18,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:42:18,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:42:18,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:42:18,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:42:18,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:42:18,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:42:18,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:42:18,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:42:18,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:42:18,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:42:18,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:42:18,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:42:18,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:42:18,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:42:18,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:42:18,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:42:18,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:42:18,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:42:18,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:42:18,109 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 [2020-07-20 10:42:18,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:42:18,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:42:18,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:42:18,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:42:18,132 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:42:18,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:42:18,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:42:18,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:42:18,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:42:18,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:42:18,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:42:18,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:42:18,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:42:18,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:42:18,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:42:18,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:42:18,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:42:18,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:42:18,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:42:18,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:42:18,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:42:18,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:42:18,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:42:18,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:42:18,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:42:18,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:42:18,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:18,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:42:18,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:42:18,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:42:18,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:42:18,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:42:18,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:42:18,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:42:18,444 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:42:18,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-07-20 10:42:18,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411f7521a/c868cb1dbfda49cc9c0d648f990d563c/FLAG37645cafb [2020-07-20 10:42:19,113 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:42:19,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-07-20 10:42:19,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411f7521a/c868cb1dbfda49cc9c0d648f990d563c/FLAG37645cafb [2020-07-20 10:42:19,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411f7521a/c868cb1dbfda49cc9c0d648f990d563c [2020-07-20 10:42:19,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:42:19,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:42:19,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:19,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:42:19,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:42:19,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:19" (1/1) ... [2020-07-20 10:42:19,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b260048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:19, skipping insertion in model container [2020-07-20 10:42:19,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:19" (1/1) ... [2020-07-20 10:42:19,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:42:19,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:42:19,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:19,983 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:42:20,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:20,148 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:42:20,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20 WrapperNode [2020-07-20 10:42:20,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:20,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:42:20,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:42:20,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:42:20,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:42:20,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:42:20,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:42:20,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:42:20,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (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 [2020-07-20 10:42:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:42:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:42:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:42:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:42:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:42:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:42:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:42:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:42:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:42:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:42:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:42:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:42:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:42:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 10:42:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:42:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:42:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:42:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:42:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:42:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:42:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:42:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:42:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:42:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 10:42:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:42:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:42:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:42:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:42:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:42:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:42:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:42:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:42:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:42:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:42:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:42:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:42:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:42:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:42:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:42:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:42:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:42:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:42:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:42:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:42:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:42:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:42:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:42:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:42:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:42:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 10:42:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:42:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:42:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:42:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:42:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:42:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 10:42:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 10:42:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:42:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:42:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:42:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:42:21,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:42:21,399 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:42:21,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:21 BoogieIcfgContainer [2020-07-20 10:42:21,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:42:21,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:42:21,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:42:21,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:42:21,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:42:19" (1/3) ... [2020-07-20 10:42:21,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d1c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:21, skipping insertion in model container [2020-07-20 10:42:21,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (2/3) ... [2020-07-20 10:42:21,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d1c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:21, skipping insertion in model container [2020-07-20 10:42:21,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:21" (3/3) ... [2020-07-20 10:42:21,412 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-07-20 10:42:21,423 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:42:21,431 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:42:21,446 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:42:21,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:42:21,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:42:21,471 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:42:21,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:42:21,472 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:42:21,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:42:21,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:42:21,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:42:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-07-20 10:42:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:42:21,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:21,505 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] [2020-07-20 10:42:21,505 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:21,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1046515037, now seen corresponding path program 1 times [2020-07-20 10:42:21,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:21,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869338584] [2020-07-20 10:42:21,518 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:21,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:42:21,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:21,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:21,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869338584] [2020-07-20 10:42:21,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:21,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:42:21,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171151864] [2020-07-20 10:42:21,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:42:21,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:21,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:42:21,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:21,839 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2020-07-20 10:42:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:21,883 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2020-07-20 10:42:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:42:21,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:42:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:21,898 INFO L225 Difference]: With dead ends: 264 [2020-07-20 10:42:21,899 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 10:42:21,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:21,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 10:42:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 10:42:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 10:42:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-07-20 10:42:21,960 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 52 [2020-07-20 10:42:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:21,961 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-07-20 10:42:21,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:42:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-07-20 10:42:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:42:21,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:21,965 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] [2020-07-20 10:42:22,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,180 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:22,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:22,182 INFO L82 PathProgramCache]: Analyzing trace with hash -503992923, now seen corresponding path program 1 times [2020-07-20 10:42:22,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:22,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615853382] [2020-07-20 10:42:22,183 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:22,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:42:22,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:22,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:22,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615853382] [2020-07-20 10:42:22,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:22,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:22,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743040058] [2020-07-20 10:42:22,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:22,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:22,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:22,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,455 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2020-07-20 10:42:22,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:22,479 INFO L93 Difference]: Finished difference Result 204 states and 237 transitions. [2020-07-20 10:42:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:22,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:42:22,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:22,482 INFO L225 Difference]: With dead ends: 204 [2020-07-20 10:42:22,482 INFO L226 Difference]: Without dead ends: 123 [2020-07-20 10:42:22,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-20 10:42:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-20 10:42:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 10:42:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-07-20 10:42:22,515 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 53 [2020-07-20 10:42:22,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:22,515 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-07-20 10:42:22,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-07-20 10:42:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 10:42:22,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:22,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:22,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,734 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:22,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:22,735 INFO L82 PathProgramCache]: Analyzing trace with hash -709646157, now seen corresponding path program 1 times [2020-07-20 10:42:22,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:22,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771443035] [2020-07-20 10:42:22,736 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:22,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:22,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:22,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:22,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771443035] [2020-07-20 10:42:22,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:22,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:22,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263476186] [2020-07-20 10:42:22,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:22,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:22,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,948 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 3 states. [2020-07-20 10:42:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:22,980 INFO L93 Difference]: Finished difference Result 319 states and 378 transitions. [2020-07-20 10:42:22,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:22,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 10:42:22,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:22,984 INFO L225 Difference]: With dead ends: 319 [2020-07-20 10:42:22,985 INFO L226 Difference]: Without dead ends: 220 [2020-07-20 10:42:22,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-20 10:42:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 210. [2020-07-20 10:42:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-07-20 10:42:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 247 transitions. [2020-07-20 10:42:23,042 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 247 transitions. Word has length 57 [2020-07-20 10:42:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:23,043 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 247 transitions. [2020-07-20 10:42:23,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 247 transitions. [2020-07-20 10:42:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 10:42:23,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:23,056 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] [2020-07-20 10:42:23,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:23,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:23,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:23,272 INFO L82 PathProgramCache]: Analyzing trace with hash 532138272, now seen corresponding path program 1 times [2020-07-20 10:42:23,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:23,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143561023] [2020-07-20 10:42:23,273 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:23,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:23,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:23,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:23,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143561023] [2020-07-20 10:42:23,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:23,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:23,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575766337] [2020-07-20 10:42:23,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:23,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:23,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:23,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:23,622 INFO L87 Difference]: Start difference. First operand 210 states and 247 transitions. Second operand 6 states. [2020-07-20 10:42:23,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:23,964 INFO L93 Difference]: Finished difference Result 567 states and 703 transitions. [2020-07-20 10:42:23,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:23,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 10:42:23,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:23,976 INFO L225 Difference]: With dead ends: 567 [2020-07-20 10:42:23,976 INFO L226 Difference]: Without dead ends: 381 [2020-07-20 10:42:23,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:42:23,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-07-20 10:42:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-07-20 10:42:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-20 10:42:24,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 456 transitions. [2020-07-20 10:42:24,021 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 456 transitions. Word has length 63 [2020-07-20 10:42:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:24,021 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 456 transitions. [2020-07-20 10:42:24,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:24,021 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 456 transitions. [2020-07-20 10:42:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 10:42:24,024 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:24,024 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] [2020-07-20 10:42:24,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:24,238 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:24,239 INFO L82 PathProgramCache]: Analyzing trace with hash -389958042, now seen corresponding path program 1 times [2020-07-20 10:42:24,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:24,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548920956] [2020-07-20 10:42:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:24,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:24,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:24,828 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:24,828 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:25,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:25,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:25 BoogieIcfgContainer [2020-07-20 10:42:25,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:25,218 INFO L168 Benchmark]: Toolchain (without parser) took 5810.39 ms. Allocated memory was 145.2 MB in the beginning and 280.5 MB in the end (delta: 135.3 MB). Free memory was 99.9 MB in the beginning and 241.1 MB in the end (delta: -141.3 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,219 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.92 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 99.4 MB in the beginning and 170.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,222 INFO L168 Benchmark]: Boogie Preprocessor took 90.14 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 166.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,223 INFO L168 Benchmark]: RCFGBuilder took 1164.76 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 166.9 MB in the beginning and 195.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,226 INFO L168 Benchmark]: TraceAbstraction took 3808.17 ms. Allocated memory was 235.9 MB in the beginning and 280.5 MB in the end (delta: 44.6 MB). Free memory was 195.4 MB in the beginning and 241.1 MB in the end (delta: -45.8 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.92 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 99.4 MB in the beginning and 170.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.14 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 166.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1164.76 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 166.9 MB in the beginning and 195.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3808.17 ms. Allocated memory was 235.9 MB in the beginning and 280.5 MB in the end (delta: 44.6 MB). Free memory was 195.4 MB in the beginning and 241.1 MB in the end (delta: -45.8 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=33, \old(head)=93, \old(head)=89, \old(methaneLevelCritical)=83, \old(pumpRunning)=27, \old(systemActive)=92, \old(waterLevel)=37, 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] [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] 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] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] 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] [L792] 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] [L794] 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] [L800] tmp = __VERIFIER_nondet_int() [L802] 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] [L804] 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] [L867] COND TRUE waterLevel < 2 [L868] 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] [L804] 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] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] 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] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] 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] [L830] CALL stopSystem() 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] [L770] COND FALSE !(\read(pumpRunning)) 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] [L777] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L830] RET stopSystem() 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=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L837] 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=0, waterLevel=2] [L604] 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=0, waterLevel=2] [L611] COND FALSE !(\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=0, waterLevel=2] [L619] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] 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=0, waterLevel=2] [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] 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=0, waterLevel=2] [L163] 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=0, waterLevel=2] [L163] tmp = isMethaneLevelCritical() [L165] 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=0, tmp=0, waterLevel=2] [L169] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L169] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L173] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] 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=0, waterLevel=2] [L173] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L179] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L148] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 651 SDtfs, 197 SDslu, 742 SDs, 0 SdLazy, 92 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2702 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...