/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:37:13,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:37:13,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:37:13,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:37:13,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:37:13,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:37:13,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:37:13,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:37:13,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:37:13,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:37:13,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:37:13,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:37:13,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:37:13,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:37:13,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:37:13,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:37:13,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:37:13,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:37:13,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:37:13,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:37:13,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:37:13,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:37:13,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:37:13,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:37:14,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:37:14,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:37:14,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:37:14,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:37:14,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:37:14,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:37:14,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:37:14,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:37:14,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:37:14,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:37:14,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:37:14,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:37:14,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:37:14,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:37:14,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:37:14,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:37:14,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:37:14,015 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 [2020-07-21 10:37:14,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:37:14,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:37:14,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:37:14,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:37:14,056 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:37:14,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:37:14,057 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:37:14,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:37:14,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:37:14,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:37:14,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:37:14,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:37:14,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:37:14,059 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:37:14,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:37:14,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:37:14,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:37:14,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:37:14,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:37:14,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:37:14,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:37:14,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:14,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:37:14,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:37:14,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:37:14,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:37:14,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:14,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:37:14,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:37:14,063 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 [2020-07-21 10:37:14,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:37:14,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:37:14,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:37:14,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:37:14,391 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:37:14,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-07-21 10:37:14,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc69476e/33875df857184a00a32c39a3a748f5a6/FLAG94a77df75 [2020-07-21 10:37:15,056 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:37:15,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-07-21 10:37:15,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc69476e/33875df857184a00a32c39a3a748f5a6/FLAG94a77df75 [2020-07-21 10:37:15,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc69476e/33875df857184a00a32c39a3a748f5a6 [2020-07-21 10:37:15,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:37:15,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:37:15,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:15,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:37:15,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:37:15,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:15,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395c8a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15, skipping insertion in model container [2020-07-21 10:37:15,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:15,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:37:15,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:37:15,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:15,842 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:37:15,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:15,966 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:37:15,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15 WrapperNode [2020-07-21 10:37:15,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:15,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:37:15,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:37:15,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:37:15,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:15,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (1/1) ... [2020-07-21 10:37:16,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:37:16,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:37:16,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:37:16,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:37:16,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (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 [2020-07-21 10:37:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:37:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:37:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:37:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:16,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:37:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:37:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:37:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:37:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:37:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:37:16,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:37:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:37:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:37:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:37:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:37:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:37:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:37:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:37:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:37:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:37:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:37:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:37:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:37:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:37:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:37:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:37:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:37:17,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:37:17,239 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:37:17,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:17 BoogieIcfgContainer [2020-07-21 10:37:17,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:37:17,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:37:17,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:37:17,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:37:17,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:37:15" (1/3) ... [2020-07-21 10:37:17,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515da2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:17, skipping insertion in model container [2020-07-21 10:37:17,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:15" (2/3) ... [2020-07-21 10:37:17,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515da2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:17, skipping insertion in model container [2020-07-21 10:37:17,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:17" (3/3) ... [2020-07-21 10:37:17,254 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-07-21 10:37:17,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:37:17,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:37:17,288 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:37:17,315 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:37:17,315 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:37:17,315 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:37:17,315 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:37:17,316 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:37:17,316 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:37:17,316 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:37:17,316 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:37:17,346 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-07-21 10:37:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:37:17,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:17,358 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] [2020-07-21 10:37:17,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:17,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1135361186, now seen corresponding path program 1 times [2020-07-21 10:37:17,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:17,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617356867] [2020-07-21 10:37:17,376 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 [2020-07-21 10:37:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:17,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:37:17,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:17,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:17,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617356867] [2020-07-21 10:37:17,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:17,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:37:17,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846090052] [2020-07-21 10:37:17,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:37:17,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:17,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:37:17,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:17,699 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2020-07-21 10:37:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:17,748 INFO L93 Difference]: Finished difference Result 318 states and 395 transitions. [2020-07-21 10:37:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:37:17,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:37:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:17,765 INFO L225 Difference]: With dead ends: 318 [2020-07-21 10:37:17,765 INFO L226 Difference]: Without dead ends: 159 [2020-07-21 10:37:17,771 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 [2020-07-21 10:37:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-21 10:37:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-07-21 10:37:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-21 10:37:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2020-07-21 10:37:17,833 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 52 [2020-07-21 10:37:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:17,834 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2020-07-21 10:37:17,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:37:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2020-07-21 10:37:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:37:17,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:17,839 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] [2020-07-21 10:37:18,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:18,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:18,053 INFO L82 PathProgramCache]: Analyzing trace with hash 117273538, now seen corresponding path program 1 times [2020-07-21 10:37:18,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:18,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771367828] [2020-07-21 10:37:18,054 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 [2020-07-21 10:37:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:18,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:37:18,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:18,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:18,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771367828] [2020-07-21 10:37:18,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:18,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:18,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508341215] [2020-07-21 10:37:18,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:18,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:18,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:18,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:18,450 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2020-07-21 10:37:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:18,474 INFO L93 Difference]: Finished difference Result 257 states and 305 transitions. [2020-07-21 10:37:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:18,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:37:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:18,478 INFO L225 Difference]: With dead ends: 257 [2020-07-21 10:37:18,478 INFO L226 Difference]: Without dead ends: 150 [2020-07-21 10:37:18,480 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 [2020-07-21 10:37:18,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-21 10:37:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-21 10:37:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-21 10:37:18,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2020-07-21 10:37:18,497 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 53 [2020-07-21 10:37:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:18,497 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2020-07-21 10:37:18,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2020-07-21 10:37:18,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 10:37:18,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:18,501 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] [2020-07-21 10:37:18,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:18,717 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1326355153, now seen corresponding path program 1 times [2020-07-21 10:37:18,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:18,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851719103] [2020-07-21 10:37:18,718 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 [2020-07-21 10:37:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:18,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:37:18,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:18,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:18,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851719103] [2020-07-21 10:37:18,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:18,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:18,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053705090] [2020-07-21 10:37:18,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:18,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:18,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:18,986 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 3 states. [2020-07-21 10:37:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:19,019 INFO L93 Difference]: Finished difference Result 398 states and 482 transitions. [2020-07-21 10:37:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:19,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 10:37:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:19,024 INFO L225 Difference]: With dead ends: 398 [2020-07-21 10:37:19,024 INFO L226 Difference]: Without dead ends: 272 [2020-07-21 10:37:19,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-07-21 10:37:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 266. [2020-07-21 10:37:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-07-21 10:37:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 321 transitions. [2020-07-21 10:37:19,078 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 321 transitions. Word has length 58 [2020-07-21 10:37:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:19,078 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 321 transitions. [2020-07-21 10:37:19,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:19,079 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 321 transitions. [2020-07-21 10:37:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 10:37:19,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:19,087 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] [2020-07-21 10:37:19,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:19,289 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash -962527068, now seen corresponding path program 1 times [2020-07-21 10:37:19,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:19,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522660113] [2020-07-21 10:37:19,291 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 [2020-07-21 10:37:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:19,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:37:19,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:19,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:19,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522660113] [2020-07-21 10:37:19,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:19,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:19,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022821607] [2020-07-21 10:37:19,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:19,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:19,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:19,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:19,595 INFO L87 Difference]: Start difference. First operand 266 states and 321 transitions. Second operand 6 states. [2020-07-21 10:37:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:19,949 INFO L93 Difference]: Finished difference Result 735 states and 941 transitions. [2020-07-21 10:37:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:19,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 10:37:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:19,955 INFO L225 Difference]: With dead ends: 735 [2020-07-21 10:37:19,955 INFO L226 Difference]: Without dead ends: 493 [2020-07-21 10:37:19,957 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 [2020-07-21 10:37:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-07-21 10:37:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 489. [2020-07-21 10:37:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-21 10:37:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 612 transitions. [2020-07-21 10:37:19,996 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 612 transitions. Word has length 63 [2020-07-21 10:37:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:19,997 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 612 transitions. [2020-07-21 10:37:19,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:19,997 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 612 transitions. [2020-07-21 10:37:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 10:37:20,001 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:20,001 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] [2020-07-21 10:37:20,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:20,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:20,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1151554506, now seen corresponding path program 1 times [2020-07-21 10:37:20,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:20,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615412909] [2020-07-21 10:37:20,217 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 [2020-07-21 10:37:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:20,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:20,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:20,852 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:37:20,853 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:37:21,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:21,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:37:21 BoogieIcfgContainer [2020-07-21 10:37:21,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:37:21,255 INFO L168 Benchmark]: Toolchain (without parser) took 5934.71 ms. Allocated memory was 140.5 MB in the beginning and 287.3 MB in the end (delta: 146.8 MB). Free memory was 103.4 MB in the beginning and 215.1 MB in the end (delta: -111.7 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,256 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.47 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 103.0 MB in the beginning and 173.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,262 INFO L168 Benchmark]: Boogie Preprocessor took 141.25 ms. Allocated memory is still 205.0 MB. Free memory was 173.1 MB in the beginning and 168.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,263 INFO L168 Benchmark]: RCFGBuilder took 1133.84 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 168.8 MB in the beginning and 189.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,265 INFO L168 Benchmark]: TraceAbstraction took 4004.34 ms. Allocated memory was 235.9 MB in the beginning and 287.3 MB in the end (delta: 51.4 MB). Free memory was 189.9 MB in the beginning and 215.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:21,277 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.47 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 103.0 MB in the beginning and 173.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.25 ms. Allocated memory is still 205.0 MB. Free memory was 173.1 MB in the beginning and 168.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1133.84 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 168.8 MB in the beginning and 189.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4004.34 ms. Allocated memory was 235.9 MB in the beginning and 287.3 MB in the end (delta: 51.4 MB). Free memory was 189.9 MB in the beginning and 215.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; VAL [\old(cleanupTimeShifts)=83, \old(head)=89, \old(head)=40, \old(methaneLevelCritical)=28, \old(pumpRunning)=74, \old(systemActive)=92, \old(waterLevel)=42, 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] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] 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] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] 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] [L950] 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] [L952] 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] [L958] tmp = __VERIFIER_nondet_int() [L960] 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] [L962] 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] [L605] COND TRUE waterLevel < 2 [L606] 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] [L962] 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] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] 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] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] 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] [L990] 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] [L920] 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] [L927] 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] [L990] 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] [L997] 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] [L701] 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] [L708] 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] [L716] 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] [L550] int tmp ; [L551] int tmp___0 ; [L552] 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] [L556] 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] [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] 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] [L556] 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] [L556] tmp = isMethaneLevelCritical() [L558] 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] [L562] 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] [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] 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] [L562] 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] [L562] tmp___0 = getWaterLevel() [L564] 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] [L566] 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] [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] 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] [L566] 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] [L566] tmp___1 = isPumpRunning() [L568] 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] [L572] 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] [L1013] __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 43 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 808 SDtfs, 270 SDslu, 952 SDs, 0 SdLazy, 117 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 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...