/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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:37:08,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:37:08,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:37:08,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:37:08,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:37:08,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:37:08,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:37:08,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:37:08,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:37:08,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:37:08,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:37:08,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:37:08,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:37:08,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:37:08,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:37:08,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:37:08,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:37:08,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:37:08,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:37:08,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:37:08,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:37:08,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:37:08,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:37:08,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:37:08,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:37:08,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:37:08,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:37:08,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:37:08,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:37:08,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:37:08,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:37:08,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:37:08,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:37:08,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:37:08,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:37:08,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:37:08,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:37:08,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:37:08,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:37:08,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:37:08,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:37:08,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:37:08,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:37:08,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:37:08,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:37:08,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:37:08,289 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:37:08,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:37:08,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:37:08,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:37:08,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:37:08,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:37:08,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:37:08,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:37:08,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:37:08,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:37:08,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:37:08,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:37:08,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:08,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:37:08,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:37:08,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:37:08,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:37:08,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:08,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:37:08,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:37:08,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:37:08,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:37:08,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:37:08,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:37:08,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:37:08,620 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:37:08,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-07-21 10:37:08,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7844c034/9512464a6d5d4a499534a712a6d92c74/FLAG84440e42c [2020-07-21 10:37:09,238 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:37:09,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-07-21 10:37:09,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7844c034/9512464a6d5d4a499534a712a6d92c74/FLAG84440e42c [2020-07-21 10:37:09,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7844c034/9512464a6d5d4a499534a712a6d92c74 [2020-07-21 10:37:09,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:37:09,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:37:09,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:09,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:37:09,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:37:09,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:09" (1/1) ... [2020-07-21 10:37:09,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5f7820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:09, skipping insertion in model container [2020-07-21 10:37:09,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:09" (1/1) ... [2020-07-21 10:37:09,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:37:09,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:37:10,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:10,130 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:37:10,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:10,254 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:37:10,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10 WrapperNode [2020-07-21 10:37:10,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:10,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:37:10,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:37:10,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:37:10,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... [2020-07-21 10:37:10,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:37:10,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:37:10,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:37:10,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:37:10,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:37:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:37:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:37:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:37:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:37:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:37:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:37:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:37:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:37:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:37:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:37:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:37:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:37:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:37:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:37:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:37:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:37:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:37:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:37:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:37:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:37:10,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:37:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:37:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:37:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:37:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:37:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:37:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:37:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:37:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:37:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:37:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:37:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:37:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:37:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:37:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:37:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:37:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:37:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:37:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:37:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:37:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:37:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:37:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:37:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:37:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:37:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:37:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:37:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:37:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:37:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:37:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:37:11,537 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:37:11,537 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:37:11,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:11 BoogieIcfgContainer [2020-07-21 10:37:11,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:37:11,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:37:11,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:37:11,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:37:11,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:37:09" (1/3) ... [2020-07-21 10:37:11,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2137867f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:11, skipping insertion in model container [2020-07-21 10:37:11,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:10" (2/3) ... [2020-07-21 10:37:11,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2137867f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:11, skipping insertion in model container [2020-07-21 10:37:11,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:11" (3/3) ... [2020-07-21 10:37:11,552 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-07-21 10:37:11,563 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:37:11,572 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:37:11,586 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:37:11,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:37:11,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:37:11,611 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:37:11,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:37:11,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:37:11,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:37:11,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:37:11,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:37:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-07-21 10:37:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:37:11,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:11,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:11,658 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:11,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1986683117, now seen corresponding path program 1 times [2020-07-21 10:37:11,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:11,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696638358] [2020-07-21 10:37:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:11,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:37:11,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:12,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:12,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696638358] [2020-07-21 10:37:12,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:12,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:37:12,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118046373] [2020-07-21 10:37:12,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:37:12,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:12,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:37:12,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:12,035 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2020-07-21 10:37:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:12,079 INFO L93 Difference]: Finished difference Result 292 states and 363 transitions. [2020-07-21 10:37:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:37:12,080 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:37:12,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:12,094 INFO L225 Difference]: With dead ends: 292 [2020-07-21 10:37:12,094 INFO L226 Difference]: Without dead ends: 146 [2020-07-21 10:37:12,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:12,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-21 10:37:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-21 10:37:12,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-21 10:37:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-07-21 10:37:12,159 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2020-07-21 10:37:12,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:12,159 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-07-21 10:37:12,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:37:12,159 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-07-21 10:37:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:37:12,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:12,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:12,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:12,368 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:12,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:12,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1294331280, now seen corresponding path program 1 times [2020-07-21 10:37:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:12,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743742716] [2020-07-21 10:37:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:12,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:37:12,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:12,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:12,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743742716] [2020-07-21 10:37:12,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:12,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:12,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076447377] [2020-07-21 10:37:12,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:12,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:12,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:12,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:12,681 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 3 states. [2020-07-21 10:37:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:12,708 INFO L93 Difference]: Finished difference Result 231 states and 273 transitions. [2020-07-21 10:37:12,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:12,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:37:12,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:12,712 INFO L225 Difference]: With dead ends: 231 [2020-07-21 10:37:12,712 INFO L226 Difference]: Without dead ends: 137 [2020-07-21 10:37:12,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-07-21 10:37:12,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-07-21 10:37:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-21 10:37:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2020-07-21 10:37:12,748 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 53 [2020-07-21 10:37:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:12,749 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2020-07-21 10:37:12,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2020-07-21 10:37:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 10:37:12,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:12,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:12,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:12,975 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:12,975 INFO L82 PathProgramCache]: Analyzing trace with hash 89991443, now seen corresponding path program 1 times [2020-07-21 10:37:12,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:12,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849964653] [2020-07-21 10:37:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:13,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:37:13,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:13,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:13,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849964653] [2020-07-21 10:37:13,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:13,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:13,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115008474] [2020-07-21 10:37:13,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:13,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:13,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:13,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:13,180 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand 3 states. [2020-07-21 10:37:13,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:13,210 INFO L93 Difference]: Finished difference Result 359 states and 434 transitions. [2020-07-21 10:37:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:13,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 10:37:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:13,213 INFO L225 Difference]: With dead ends: 359 [2020-07-21 10:37:13,213 INFO L226 Difference]: Without dead ends: 246 [2020-07-21 10:37:13,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-21 10:37:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 240. [2020-07-21 10:37:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-21 10:37:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 289 transitions. [2020-07-21 10:37:13,240 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 289 transitions. Word has length 58 [2020-07-21 10:37:13,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:13,241 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 289 transitions. [2020-07-21 10:37:13,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 289 transitions. [2020-07-21 10:37:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 10:37:13,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:13,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:13,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:13,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1771452602, now seen corresponding path program 1 times [2020-07-21 10:37:13,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:13,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765460324] [2020-07-21 10:37:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:13,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:37:13,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:13,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:13,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765460324] [2020-07-21 10:37:13,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:13,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:13,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639156856] [2020-07-21 10:37:13,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:13,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:13,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:13,742 INFO L87 Difference]: Start difference. First operand 240 states and 289 transitions. Second operand 6 states. [2020-07-21 10:37:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:14,024 INFO L93 Difference]: Finished difference Result 657 states and 837 transitions. [2020-07-21 10:37:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:14,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 10:37:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:14,031 INFO L225 Difference]: With dead ends: 657 [2020-07-21 10:37:14,031 INFO L226 Difference]: Without dead ends: 441 [2020-07-21 10:37:14,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:37:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-07-21 10:37:14,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 437. [2020-07-21 10:37:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 10:37:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 544 transitions. [2020-07-21 10:37:14,074 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 544 transitions. Word has length 63 [2020-07-21 10:37:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:14,076 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 544 transitions. [2020-07-21 10:37:14,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:14,077 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 544 transitions. [2020-07-21 10:37:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 10:37:14,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:14,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:14,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:14,297 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:14,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1282483756, now seen corresponding path program 1 times [2020-07-21 10:37:14,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:14,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691204954] [2020-07-21 10:37:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:14,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:14,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:14,867 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:37:14,868 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:37:15,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:15,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:37:15 BoogieIcfgContainer [2020-07-21 10:37:15,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:37:15,255 INFO L168 Benchmark]: Toolchain (without parser) took 5686.80 ms. Allocated memory was 145.2 MB in the beginning and 285.2 MB in the end (delta: 140.0 MB). Free memory was 100.8 MB in the beginning and 246.0 MB in the end (delta: -145.2 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,256 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.55 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.4 MB in the end (delta: -69.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,257 INFO L168 Benchmark]: Boogie Preprocessor took 89.23 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,258 INFO L168 Benchmark]: RCFGBuilder took 1198.33 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 165.4 MB in the beginning and 194.9 MB in the end (delta: -29.4 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,259 INFO L168 Benchmark]: TraceAbstraction took 3707.79 ms. Allocated memory was 235.4 MB in the beginning and 285.2 MB in the end (delta: 49.8 MB). Free memory was 194.9 MB in the beginning and 246.0 MB in the end (delta: -51.1 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:15,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.55 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.4 MB in the end (delta: -69.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.23 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.33 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 165.4 MB in the beginning and 194.9 MB in the end (delta: -29.4 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3707.79 ms. Allocated memory was 235.4 MB in the beginning and 285.2 MB in the end (delta: 49.8 MB). Free memory was 194.9 MB in the beginning and 246.0 MB in the end (delta: -51.1 MB). Peak memory consumption was 117.6 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: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=65, \old(head)=83, \old(head)=85, \old(methaneLevelCritical)=33, \old(pumpRunning)=63, \old(systemActive)=90, \old(waterLevel)=92, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] int retValue_acc ; [L522] 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] [L526] 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] [L527] 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] [L528] 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] [L528] 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] [L528] tmp = valid_product() [L530] 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] [L532] 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] [L533] 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] [L515] 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] [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] 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] [L554] 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] [L556] 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] [L562] tmp = __VERIFIER_nondet_int() [L564] 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] [L566] 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] [L147] COND TRUE waterLevel < 2 [L148] 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] [L566] 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] [L572] tmp___0 = __VERIFIER_nondet_int() [L574] 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] [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] 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] [L594] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L427] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L594] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L601] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L236] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L251] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [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=0, 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=0, waterLevel=2] [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [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=0, 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=0, 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=0, waterLevel=2] [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [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=0, 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=0, 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=0, waterLevel=2] [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [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=0, 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=0, 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=0, 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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 744 SDtfs, 236 SDslu, 856 SDs, 0 SdLazy, 104 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...