/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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:41:59,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:41:59,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:41:59,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:41:59,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:41:59,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:42:00,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:42:00,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:42:00,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:42:00,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:42:00,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:42:00,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:42:00,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:42:00,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:42:00,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:42:00,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:42:00,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:42:00,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:42:00,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:42:00,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:42:00,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:42:00,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:42:00,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:42:00,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:42:00,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:42:00,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:42:00,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:42:00,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:42:00,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:42:00,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:42:00,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:42:00,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:42:00,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:42:00,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:42:00,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:42:00,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:42:00,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:42:00,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:42:00,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:42:00,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:42:00,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:42:00,066 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 10:42:00,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:42:00,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:42:00,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:42:00,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:42:00,100 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:42:00,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:42:00,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:42:00,102 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:42:00,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:42:00,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:42:00,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:42:00,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:42:00,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:42:00,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:42:00,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:42:00,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:42:00,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:42:00,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:42:00,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:42:00,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:42:00,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:00,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:42:00,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:42:00,112 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 10:42:00,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:42:00,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:42:00,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:42:00,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:42:00,423 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:42:00,424 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-07-20 10:42:00,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f584d57/f371d714f53a47feb3ca2591d6b51c3c/FLAG96b019d6b [2020-07-20 10:42:01,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:42:01,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-07-20 10:42:01,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f584d57/f371d714f53a47feb3ca2591d6b51c3c/FLAG96b019d6b [2020-07-20 10:42:01,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f584d57/f371d714f53a47feb3ca2591d6b51c3c [2020-07-20 10:42:01,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:42:01,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:42:01,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:01,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:42:01,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:42:01,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:01" (1/1) ... [2020-07-20 10:42:01,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142f4857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:01, skipping insertion in model container [2020-07-20 10:42:01,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:01" (1/1) ... [2020-07-20 10:42:01,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:42:01,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:42:01,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:01,883 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:42:02,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:02,037 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:42:02,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02 WrapperNode [2020-07-20 10:42:02,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:02,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:42:02,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:42:02,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:42:02,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (1/1) ... [2020-07-20 10:42:02,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:42:02,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:42:02,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:42:02,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:42:02,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (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 10:42:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:42:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:42:02,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:42:02,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:42:02,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:42:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:42:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:42:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:42:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:42:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:42:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:42:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:42:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:42:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:42:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:42:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:42:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:42:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:42:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:42:03,335 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:42:03,336 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:42:03,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:03 BoogieIcfgContainer [2020-07-20 10:42:03,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:42:03,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:42:03,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:42:03,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:42:03,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:42:01" (1/3) ... [2020-07-20 10:42:03,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445e86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:03, skipping insertion in model container [2020-07-20 10:42:03,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:02" (2/3) ... [2020-07-20 10:42:03,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445e86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:03, skipping insertion in model container [2020-07-20 10:42:03,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:03" (3/3) ... [2020-07-20 10:42:03,350 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-07-20 10:42:03,363 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:42:03,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:42:03,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:42:03,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:42:03,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:42:03,418 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:42:03,418 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:42:03,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:42:03,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:42:03,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:42:03,419 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:42:03,444 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-20 10:42:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:42:03,455 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:03,456 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 10:42:03,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:03,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash 940922037, now seen corresponding path program 1 times [2020-07-20 10:42:03,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:03,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787494138] [2020-07-20 10:42:03,475 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 10:42:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:03,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:42:03,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:03,766 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 10:42:03,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:03,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787494138] [2020-07-20 10:42:03,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:03,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:42:03,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393566532] [2020-07-20 10:42:03,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:42:03,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:03,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:42:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:03,792 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2020-07-20 10:42:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:03,833 INFO L93 Difference]: Finished difference Result 218 states and 271 transitions. [2020-07-20 10:42:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:42:03,834 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:42:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:03,847 INFO L225 Difference]: With dead ends: 218 [2020-07-20 10:42:03,847 INFO L226 Difference]: Without dead ends: 109 [2020-07-20 10:42:03,851 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 10:42:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-20 10:42:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-20 10:42:03,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-20 10:42:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-07-20 10:42:03,904 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 52 [2020-07-20 10:42:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:03,905 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-07-20 10:42:03,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:42:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-07-20 10:42:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:42:03,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:03,909 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 10:42:04,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:04,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:04,124 INFO L82 PathProgramCache]: Analyzing trace with hash -110013257, now seen corresponding path program 1 times [2020-07-20 10:42:04,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:04,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978551058] [2020-07-20 10:42:04,125 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 10:42:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:04,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:42:04,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:04,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:04,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978551058] [2020-07-20 10:42:04,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:04,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:04,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367985095] [2020-07-20 10:42:04,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:04,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:04,450 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2020-07-20 10:42:04,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:04,480 INFO L93 Difference]: Finished difference Result 163 states and 189 transitions. [2020-07-20 10:42:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:04,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:42:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:04,485 INFO L225 Difference]: With dead ends: 163 [2020-07-20 10:42:04,485 INFO L226 Difference]: Without dead ends: 100 [2020-07-20 10:42:04,488 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 10:42:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-20 10:42:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-20 10:42:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 10:42:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-20 10:42:04,514 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 53 [2020-07-20 10:42:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:04,515 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-20 10:42:04,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-20 10:42:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 10:42:04,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:04,518 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, 1] [2020-07-20 10:42:04,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:04,719 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash -829955057, now seen corresponding path program 1 times [2020-07-20 10:42:04,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:04,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7937386] [2020-07-20 10:42:04,721 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 10:42:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:04,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:04,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:05,011 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 10:42:05,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:05,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7937386] [2020-07-20 10:42:05,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:05,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:05,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424950624] [2020-07-20 10:42:05,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:05,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:05,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:05,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:05,017 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 3 states. [2020-07-20 10:42:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:05,054 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2020-07-20 10:42:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:05,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 10:42:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:05,057 INFO L225 Difference]: With dead ends: 176 [2020-07-20 10:42:05,057 INFO L226 Difference]: Without dead ends: 100 [2020-07-20 10:42:05,060 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 [2020-07-20 10:42:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-20 10:42:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-20 10:42:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 10:42:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-07-20 10:42:05,083 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 58 [2020-07-20 10:42:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:05,084 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-07-20 10:42:05,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-07-20 10:42:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 10:42:05,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:05,090 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] [2020-07-20 10:42:05,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:05,305 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:05,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:05,305 INFO L82 PathProgramCache]: Analyzing trace with hash -715130014, now seen corresponding path program 1 times [2020-07-20 10:42:05,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:05,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189291857] [2020-07-20 10:42:05,307 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 10:42:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:05,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:05,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:05,567 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 10:42:05,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:05,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189291857] [2020-07-20 10:42:05,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:05,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:05,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045482736] [2020-07-20 10:42:05,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:05,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:05,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:05,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:05,576 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2020-07-20 10:42:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:05,826 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2020-07-20 10:42:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:05,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-20 10:42:05,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:05,830 INFO L225 Difference]: With dead ends: 243 [2020-07-20 10:42:05,830 INFO L226 Difference]: Without dead ends: 167 [2020-07-20 10:42:05,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 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 10:42:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-07-20 10:42:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2020-07-20 10:42:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-20 10:42:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2020-07-20 10:42:05,852 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 66 [2020-07-20 10:42:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:05,853 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2020-07-20 10:42:05,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2020-07-20 10:42:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-20 10:42:05,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:05,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:42:06,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:06,069 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1182747068, now seen corresponding path program 1 times [2020-07-20 10:42:06,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:06,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995863027] [2020-07-20 10:42:06,071 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 10:42:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:06,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:06,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:06,713 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:06,713 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:06,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:07,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:07 BoogieIcfgContainer [2020-07-20 10:42:07,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:07,145 INFO L168 Benchmark]: Toolchain (without parser) took 5750.78 ms. Allocated memory was 142.6 MB in the beginning and 246.9 MB in the end (delta: 104.3 MB). Free memory was 102.9 MB in the beginning and 96.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 110.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:07,146 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 10:42:07,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.73 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 102.4 MB in the beginning and 172.7 MB in the end (delta: -70.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:07,148 INFO L168 Benchmark]: Boogie Preprocessor took 88.43 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 168.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:07,149 INFO L168 Benchmark]: RCFGBuilder took 1214.11 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 168.9 MB in the beginning and 198.6 MB in the end (delta: -29.7 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:07,150 INFO L168 Benchmark]: TraceAbstraction took 3800.09 ms. Allocated memory was 235.9 MB in the beginning and 246.9 MB in the end (delta: 11.0 MB). Free memory was 197.0 MB in the beginning and 96.7 MB in the end (delta: 100.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:07,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 642.73 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 102.4 MB in the beginning and 172.7 MB in the end (delta: -70.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.43 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 168.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.11 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 168.9 MB in the beginning and 198.6 MB in the end (delta: -29.7 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3800.09 ms. Allocated memory was 235.9 MB in the beginning and 246.9 MB in the end (delta: 11.0 MB). Free memory was 197.0 MB in the beginning and 96.7 MB in the end (delta: 100.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=50, \old(head)=63, \old(head)=91, \old(methaneLevelCritical)=74, \old(pumpRunning)=57, \old(systemActive)=94, \old(waterLevel)=24, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L799] 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] [L803] 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] [L804] 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] [L805] 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] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] 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] [L805] 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] [L805] tmp = valid_product() [L807] 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] [L809] 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] [L810] 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] [L792] 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] [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] 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] [L668] 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] [L670] 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] [L676] tmp = __VERIFIER_nondet_int() [L678] 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] [L680] 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] [L839] COND TRUE waterLevel < 2 [L840] 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] [L680] 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] [L686] tmp___0 = __VERIFIER_nondet_int() [L688] 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] [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___2)) [L704] tmp___1 = __VERIFIER_nondet_int() [L706] 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] [L713] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] FCALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L153] 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=1, waterLevel=2] [L91] int tmp ; [L92] int tmp___0 ; [L93] 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=1, waterLevel=2] [L97] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L97] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L103] 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=1, waterLevel=2] [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] 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=1, waterLevel=2] [L103] 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=1, tmp=0, waterLevel=2] [L103] tmp___0 = getWaterLevel() [L105] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L107] 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=1, waterLevel=2] [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L107] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L107] tmp___1 = isPumpRunning() [L109] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L113] 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=1, waterLevel=2] [L44] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 218 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 138 SDslu, 515 SDs, 0 SdLazy, 76 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 24663 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2707 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...