/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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:36:35,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:36:35,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:36:35,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:36:35,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:36:35,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:36:35,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:36:35,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:36:35,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:36:35,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:36:35,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:36:35,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:36:35,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:36:35,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:36:35,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:36:35,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:36:35,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:36:35,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:36:35,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:36:35,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:36:35,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:36:35,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:36:35,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:36:35,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:36:35,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:36:35,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:36:35,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:36:35,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:36:35,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:36:35,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:36:35,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:36:35,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:36:35,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:36:35,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:36:35,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:36:35,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:36:35,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:36:35,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:36:35,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:36:35,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:36:35,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:36:35,160 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 10:36:35,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:36:35,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:36:35,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:36:35,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:36:35,200 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:36:35,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:36:35,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:36:35,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:36:35,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:36:35,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:36:35,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:36:35,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:36:35,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:36:35,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:36:35,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:36:35,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:36:35,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:36:35,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:36:35,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:36:35,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:36:35,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:36:35,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:35,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:36:35,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:36:35,206 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 10:36:35,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:36:35,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:36:35,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:36:35,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:36:35,517 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:36:35,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-21 10:36:35,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948808adc/4c70afcf40c34a80a60506194481348a/FLAGf3e120e63 [2020-07-21 10:36:36,098 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:36:36,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-21 10:36:36,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948808adc/4c70afcf40c34a80a60506194481348a/FLAGf3e120e63 [2020-07-21 10:36:36,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948808adc/4c70afcf40c34a80a60506194481348a [2020-07-21 10:36:36,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:36:36,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:36:36,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:36,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:36:36,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:36:36,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:36" (1/1) ... [2020-07-21 10:36:36,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b260048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:36, skipping insertion in model container [2020-07-21 10:36:36,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:36" (1/1) ... [2020-07-21 10:36:36,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:36:36,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:36:36,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:36,994 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:36:37,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:37,139 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:36:37,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37 WrapperNode [2020-07-21 10:36:37,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:37,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:36:37,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:36:37,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:36:37,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (1/1) ... [2020-07-21 10:36:37,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:36:37,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:36:37,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:36:37,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:36:37,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (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 10:36:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:36:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:36:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:36:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:36:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:36:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:36:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:36:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:36:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:36:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:36:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:36:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:36:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:36:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:36:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:36:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:36:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:36:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:36:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:36:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:36:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:36:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:36:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:36:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:36:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:36:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:36:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:36:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:36:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:36:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:36:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:36:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:36:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:36:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:36:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:36:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:36:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:36:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:36:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:36:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:36:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:36:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:36:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:36:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:36:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:36:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:36:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:36:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:36:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:36:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:36:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:36:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:36:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:36:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:36:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:36:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:36:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:36:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:36:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:36:38,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:36:38,352 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:36:38,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:38 BoogieIcfgContainer [2020-07-21 10:36:38,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:36:38,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:36:38,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:36:38,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:36:38,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:36:36" (1/3) ... [2020-07-21 10:36:38,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c21d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:38, skipping insertion in model container [2020-07-21 10:36:38,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:37" (2/3) ... [2020-07-21 10:36:38,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c21d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:38, skipping insertion in model container [2020-07-21 10:36:38,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:38" (3/3) ... [2020-07-21 10:36:38,366 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-07-21 10:36:38,377 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:36:38,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:36:38,400 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:36:38,426 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:36:38,426 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:36:38,426 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:36:38,426 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:36:38,426 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:36:38,427 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:36:38,427 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:36:38,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:36:38,450 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2020-07-21 10:36:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:36:38,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:38,461 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 10:36:38,462 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:38,468 INFO L82 PathProgramCache]: Analyzing trace with hash 761454740, now seen corresponding path program 1 times [2020-07-21 10:36:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:38,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028757885] [2020-07-21 10:36:38,477 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 10:36:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:38,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:36:38,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:38,762 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 10:36:38,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:38,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028757885] [2020-07-21 10:36:38,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:38,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:36:38,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148699858] [2020-07-21 10:36:38,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:36:38,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:36:38,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:38,795 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2020-07-21 10:36:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:38,831 INFO L93 Difference]: Finished difference Result 182 states and 227 transitions. [2020-07-21 10:36:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:36:38,833 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:36:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:38,844 INFO L225 Difference]: With dead ends: 182 [2020-07-21 10:36:38,845 INFO L226 Difference]: Without dead ends: 91 [2020-07-21 10:36:38,849 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 10:36:38,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-21 10:36:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-21 10:36:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-21 10:36:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2020-07-21 10:36:38,903 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 52 [2020-07-21 10:36:38,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:38,903 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2020-07-21 10:36:38,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:36:38,904 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2020-07-21 10:36:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:36:38,907 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:38,907 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 10:36:39,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:39,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:39,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:39,123 INFO L82 PathProgramCache]: Analyzing trace with hash -873378410, now seen corresponding path program 1 times [2020-07-21 10:36:39,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:39,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529839736] [2020-07-21 10:36:39,124 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 10:36:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:39,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:36:39,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:39,365 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 10:36:39,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:39,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529839736] [2020-07-21 10:36:39,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:39,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:39,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15872499] [2020-07-21 10:36:39,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:39,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:39,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:39,370 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand 3 states. [2020-07-21 10:36:39,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:39,388 INFO L93 Difference]: Finished difference Result 127 states and 145 transitions. [2020-07-21 10:36:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:39,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:36:39,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:39,394 INFO L225 Difference]: With dead ends: 127 [2020-07-21 10:36:39,394 INFO L226 Difference]: Without dead ends: 82 [2020-07-21 10:36:39,396 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 10:36:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-07-21 10:36:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-07-21 10:36:39,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-21 10:36:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2020-07-21 10:36:39,416 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 53 [2020-07-21 10:36:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:39,416 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-07-21 10:36:39,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2020-07-21 10:36:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 10:36:39,421 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:39,422 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 10:36:39,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:39,637 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash -646748837, now seen corresponding path program 1 times [2020-07-21 10:36:39,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:39,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302946841] [2020-07-21 10:36:39,669 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 10:36:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:39,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:36:39,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:39,889 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 10:36:39,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:39,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302946841] [2020-07-21 10:36:39,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:39,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:39,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512772149] [2020-07-21 10:36:39,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:39,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:39,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:39,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:39,892 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 3 states. [2020-07-21 10:36:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:39,911 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2020-07-21 10:36:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:39,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 10:36:39,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:39,913 INFO L225 Difference]: With dead ends: 140 [2020-07-21 10:36:39,913 INFO L226 Difference]: Without dead ends: 82 [2020-07-21 10:36:39,914 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 10:36:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-07-21 10:36:39,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-07-21 10:36:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-21 10:36:39,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-07-21 10:36:39,925 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 58 [2020-07-21 10:36:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:39,925 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-07-21 10:36:39,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-07-21 10:36:39,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 10:36:39,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:39,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:40,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:40,141 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash 387624930, now seen corresponding path program 1 times [2020-07-21 10:36:40,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:40,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186429522] [2020-07-21 10:36:40,144 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 10:36:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:40,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:36:40,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:40,391 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 10:36:40,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:40,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186429522] [2020-07-21 10:36:40,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:40,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:36:40,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708326515] [2020-07-21 10:36:40,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:36:40,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:40,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:36:40,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:36:40,394 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 6 states. [2020-07-21 10:36:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:40,664 INFO L93 Difference]: Finished difference Result 189 states and 226 transitions. [2020-07-21 10:36:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:36:40,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-21 10:36:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:40,670 INFO L225 Difference]: With dead ends: 189 [2020-07-21 10:36:40,670 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 10:36:40,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 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 10:36:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 10:36:40,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2020-07-21 10:36:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-21 10:36:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2020-07-21 10:36:40,690 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 61 [2020-07-21 10:36:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:40,690 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2020-07-21 10:36:40,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:36:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2020-07-21 10:36:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 10:36:40,692 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:40,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:40,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:40,906 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:40,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1045725272, now seen corresponding path program 1 times [2020-07-21 10:36:40,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:40,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642488773] [2020-07-21 10:36:40,908 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 10:36:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:41,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:41,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:41,388 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:36:41,388 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:36:41,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:41,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:36:41 BoogieIcfgContainer [2020-07-21 10:36:41,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:36:41,775 INFO L168 Benchmark]: Toolchain (without parser) took 5295.41 ms. Allocated memory was 137.4 MB in the beginning and 249.0 MB in the end (delta: 111.7 MB). Free memory was 99.5 MB in the beginning and 129.1 MB in the end (delta: -29.6 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,776 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.08 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 170.4 MB in the end (delta: -71.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,778 INFO L168 Benchmark]: Boogie Preprocessor took 90.55 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,779 INFO L168 Benchmark]: RCFGBuilder took 1126.39 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 166.4 MB in the beginning and 201.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,780 INFO L168 Benchmark]: TraceAbstraction took 3413.80 ms. Allocated memory was 233.3 MB in the beginning and 249.0 MB in the end (delta: 15.7 MB). Free memory was 200.1 MB in the beginning and 129.1 MB in the end (delta: 71.0 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:41,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.08 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 170.4 MB in the end (delta: -71.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.55 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1126.39 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 166.4 MB in the beginning and 201.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3413.80 ms. Allocated memory was 233.3 MB in the beginning and 249.0 MB in the end (delta: 15.7 MB). Free memory was 200.1 MB in the beginning and 129.1 MB in the end (delta: 71.0 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=86, \old(head)=89, \old(head)=93, \old(methaneLevelCritical)=38, \old(pumpRunning)=85, \old(systemActive)=92, \old(waterLevel)=74, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] int retValue_acc ; [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L638] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=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] [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___2)) [L662] tmp___1 = __VERIFIER_nondet_int() [L664] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=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=0, tmp___2=0, waterLevel=2] [L671] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L592] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=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] [L596] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L596] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=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] [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=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] [L602] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] __VERIFIER_error() VAL [\old(methaneLevelCritical)=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 35 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 99 SDslu, 400 SDs, 0 SdLazy, 66 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 22838 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2627 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...